CSA B140.3-1962 - Oil burning stoves and water heaters (reaffirmed 2015)

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B140.3-1962

(reaffirmed 2015)

Oil burning stoves and water heaters

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CSA STANDARD B140.3-1962

(Reaffirmed 2001)

OIL BURNING STOVES AND

WATER HEATERS

PUBLISHED, MARCH, 1962 BY THE CANADIAN STANDARDS ASSOCIATION (INCORPORATED 1919) 235 MONTREAL ROAD OTTAWA 2, CANADA

COPYRIGHT REGISTERED, CANADA, 1962

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CSA Standards Update Service B140.3-1962 March 1962 Title: Oil burning stoves and water heaters Pagination: 40 pages To register for e-mail notification about any updates to this publication •

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Clause &Revise Clause 5 as follows: 5. MARKING 5.1 General. The marking shall comply with the applicable requirements of CSA Standard B140.0. 5.2 Details Required. Each appliance shall be plainly marked in a permanent manner with the following details : (a) Manufacturer’s name, tradename, or other recognized symbol of t h e manufacturer; (b) Model or type number of the complete unit; (c) Maximum input in suitable units, Le. cubic centirnetres per minute, or gaIlons per hour, or pounds per hour (refer to the Combustion Test of Clause 7.2); (d) For oil burning stoves, the heat output in Btu per hour (refer to the Heat Output Test of Clause 7.3); (e) Electrical ratings, where applicable, a s specified in CSA Standard C22.2 So. 3-1961, Electrical Features of Fuel-Burning Equipment (Gas and Oil). The above marking shall be on a non-removable panel of the unit, and shall be readily visible. Soms: 1. I n p u t s specified in gallons per hour are to be qiralijied by the appropriate measurement, e.g. Imperial (Imp.) or United States (US.). 2. The heat output marking of Clause 5.2 ( d ) m a y be less than that actually determined b y test.

5.3 Identification Marking for Space Heaters

5.3.1 Each space heater shall bear an identification marking, which, if the heater were involved in a fire, wouId be readable after the fire. XOTE: Marking embossed

OT cast in metal having a melting point not less than l,dOOF, is considered satisfactory.

5.3.2 The identification marking shall be the rnarking required by Clause 5 . 2 items (a) and (b). 5.3.3 LnIess the nameplate, bearing the marking required by Clause 5.2 meets the requirements of Clause 5.3.1, the identification marking shall be on a separate nameplate, in addition to the nameplate required by Clause 5.2, or shaIl be embossed or cast into some prominent permanent part of the heater. 5.3.4 If a separate nameplate, bearing the identification marking is used, i t shall meet the requirements of Clause 5.3.1 and shall be permanently secured t o the heater adjacent to the nameplate required by Clause 5-25.4 Cautions 5.4.1 The following cautions, or equivalent wordings, shall be located on the appliance so that they are readily visible t o the operator when lighting the burner: (a) “l\7AIT UNTIL THE BURNER IS COOL BEFORE LIGHTIX-C” ; and (b) “IF THE BURNER IS FLOODED, DRAIS

BEFORE LIGHTISG”. 5.4.2 The above cautions shall be on a metal plate, or the equivalent, or a temperature-resistant marking shall be used. 6 0 ~ The ~ aboae : markings may

be !muted on the inside surface ~fa cabinet door that provides access t o the lzEhting door.

3.5 Installation Markings

5.51 Each unit shall bear a permanent” marking giving the minimum clearances, when installed from the unit to adjacent combustible construction. ~

‘Permanent, in this case, means as permanent as metalfoil nameplates.

5.5.2 Each unit which is not to be installed on combustible flooring shall bear a marking or caution equivalent to: “IYSTAI,I, O SLY O S -4 SOS-COMBCSTIBLE FLOOR1S G ”. 5.5.3 The installation markings shaIl be located adjacent t o or combined with the data required by Clause 5.2.

5.6 Field Assembled Units 5.6.1 \%‘hen the unit, and the burner, or other components, are shipped as separate items intended for field-assembly, the following marking or its equivalent shall appear on the unit in a place where the details may be readily seen : “FOR USE OSLY WITH (specify the manufacturer of the burner) OIL BURKER hlODEL (OR TYPE)”. 5.6.2 The above marking shall be located adjacent to,or combined with the details required in Clause 5.2. YOTS:The aboze marking m a y b ~ ?on a substantial paper slicker, water transfer, or the eqwizzalent.

M u y , 19631 Rerision No. Z

R140 3-1067

CSA CERTIFICATION The requirements of this CSA Standard have been made mandatory by most provincial or municipal authorities in Canada, and these authorities demand that before products covered by this CSA Standard may be offered €or sale or placed in service, representative samples shall have been investigated by a designated laboratory which shall certify that they meet the requirements of the Standard. The registered monogram mark @ , which is controlled by the CSA Testing Laboratories, is used t o indicate this certification. The CSA certification marks ‘CSA STANDARD’ or ‘CSA STD’ are not acceptable for this purpose.

For complete detaiis, inquire directly to Manager, CSA Testing Laboratories, 178 Rexdale Boulevard, TORONTO, Rexdale Post Office, Ontario.

STANDARDS Address all orders for CSA Standards to General Manager, Canadian Standards Association, 235 Montreal Road, Ottawa 2, Ontario. A complimentary copy of the complete list of

CSA publications will be provided on request.

OIL BURNING STOVES AND WATER HEATERS

3

CONTENTS Page List of Members of Committee on Oil Burning Equipment . . . . . . . . . . . 6 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reference Publications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 7

STANDARD 1. Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

2 . Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

3. General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Oil Burner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Electrical Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4 Methods of Assembly and Shipment . . . . . . . . . . . . . . . . . . . . . . . 4. Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 11

11 11 11

11 4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.2 Accessibility of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.3 Location of Fuel Lines and Fuel Components . . . . . . . . . . . . . . 12 4.4 Casings and Liners. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.5 Lubrication of Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.6 Flue Collars. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.7 Flue-Gas Passages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.8 Draft Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.9 Heating Surfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.10 Levelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.11 Glass Containers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.12 Anti-Flooding Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.13 Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.14 Integral Tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.15 Fuel Lines and Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.16 Fuel Oil Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.17 Observation of the Flame Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.18 Refractory MateriaIs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.19 Metal Fireboxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.20 Flue Baffles and Flame Baffles . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.2 1 Insulating Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.22 Safety Limit Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.23 Water Heaters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I6

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CSA STANDARD B140.3

Page

17 17 17 5. Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.2 Details Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.3 Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 5.4 Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 5.5 FieId AssembIedUnits.................................... 18 6. Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.24 Meansof Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.25 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.26 Flow Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2 Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18 20

7 . Normal Unit Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2 Combustion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2.1 Test Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2.1.1 Combustion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2.1.2 Smoke Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2.1.3 Maximum Flue-Gas Temperature. . . . . . . . . . . . . . 7.2.1.4 Minimum Flue-Gas Temperature . . . . . . . . . . . . . . 7.2. I .5 Operating Flow-Rate . . . . . . . . . . . . . . . . . . . . . . . . . 7.2.2 Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3 Heat Output - Oil Burning Stoves . . . . . . . . . . . . . . . . . . . . . . . . 7.3.1 Test Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3.1.1 Heat Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3.1.2 Optional Mechanical Draft . . . . . . . . . . . . . . . . . . . . 7.3.2 Test Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3.3 Determination of Heat Output . . . . . . . . . . . . . . . . . . . . . . . . 7.4 Limit Control Performance (Water Heaters) . . . . . . . . . . . . . . . . 7.5 Hydrostatic Pressure (Water Heaters) . . . . . . . . . . . . . . . . . . . . . . 7.6 Normal Temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6.1 Test Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6.2 Test Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6.3 Installation Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6.4 Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6.4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6.4.2 Room Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6.4.3 Water Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6.4.4 Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6.4.5 Combination Ranges . . . . . . . . . . . . . . . . . . . . . . . . . 7.7 Blower Motor Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.8 Seepage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21 21 21 21

21 21 21 22 22 22 23 23 23 23 23 23 24 24 24 24 25 25 26 26 26 26 26 27 27

27

OIL BURNING STOVES A N D WATER HEATERS

5

Page 7.9 Flooding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7.10 Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7.11 Rigidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7.11.1 Integral Tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 28 7.1 1.2 Constant-Level Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.12 Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7.13 Capacity (Integral Tanks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 29 7.14 Excess Capacity (Barometric Feed) . . . . . . . . . . . . . . . . . . . . . . . 29 7.15 Pressure Test (Barometric Tanks) . . . . . . . . . . . . . . . . . . . . . . . .

..

8. Abnormal Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.2 Flooded Pot Burn-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3 Abnormal Chimney Draft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4 Abnormal Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5 Power Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.6 Abnormal Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

29 29 29 29 30 30 30

9 . Burner Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30

10. Test 10.1 10.2 10.3

Enclosure and Installation Methods for Temperature Tests . . 31 GeneraT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 31 Reference Figures . . . . . . . . . . . . . . . . . . . . . . : . . . . . . . . . . . . . . . . Details of Design and Application . . . . . . . . . . . . . . . . . . . . . . . . 31 11. Determination of the Heat Input for Oil Burning Stoves. . . . . . . . . 34 11.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 11.2 Method of Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 11.3 Explanation of Table 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 12. Determination of the Flue-Gas Loss for Oil Burning Stoves . . . . . .

12.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.2 Method of Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.3 Explanation of Figures 4 and 5 . . . . . . . . . . . . . . . . . . . . . . . . . . .

37 37 37 38

6

CSA STANDARD B140.3

COMMITTEE ON OIL BURNING EQUIPMENT D. DYMOND (Chairman).. . . . . . . . . . . . CSA Testing Laboratories, Toronto D. J, BROOKER.. . . . . . . . . . . . . . . . . . . .Aero Tool Works Limited, Toronto (Representing Oil Heating Association)

W. J. CARSON. . . . . . . . . . . . . . . . . . . . .Saskatchewan Department of Labour, Regina R. B. GLAVE.. . . . . . . . . . . . . . . . . . . . .The Canadian Coleman Company Ltd., Toronto (Representing Canadian Institute of Stove and Furnace Manufacturers) A. H. HILLS... . . . . . . . . . . . . . . . . . . . . Penn Controls Limited, Toronto (Represenling Oil Heating Association)

J. E. LEEMING.. . . . . . . . . . . . . . . . . . . .Canadian General Electric Company Ltd., Toronto

J. A. MACGLASHAN. . . . . . . . . . . . . . . .Conroy Manufacturing Company Ltd., St, Catharines (Representing Canadian Institute of Stove and Furnace Manufacturers) E. H. MCKINNEY. . . . . . . . . . . . . . . . . .Engineering Industries Company Ltd., Toronto (Re$resenting National Warm Air Heating and Air Conditioning Association)

C. M I A L L . . . . . . . . . . . . . . . . . . . . . . .

. T h e Hydro-Electric Power Commission of Ontario, Toronto

J. I;. MITCHELL.. . . . . . . . . . . . . . . . . . .McArthur-MacKinnon Limited, Toronto (Representing Katiorial Warm Air Heating and Air Conditioning Association)

W. P. WEST......................

.General Accident Assurance Company of Canada, Toronto (Representing Independent Fire Insurance Conference)

A. G. WILSON. .....................

National Research Council, Ottawa

G. R. WOOLFREY . . . . . . . . . . . . . . . . . . . Manufacturers Mutual Fire Insurance Company, Westmou n t In addition tu the members of the Committee, the following made valuable contribution tu the deveEopment of this Standard in their capaciiies as noted:

D. H. BOTTRILL(Associate Member). . Oil-Heat Institute of America, Inc., New York D. T. HEWSON(AEternale). . . . . . . . . . . CSA Testing Laboratories, Toronto L. C. KIMBALL (Associate Member) . . Hupp Corporation, Waynesboro, Georgia

H. B. LURIE(AZfernate). . . . . . . . . . . . .The Hydro-Electric Power Commission of Ontario, Toronto D. OLDS(AZternate). . . . . . . . . . . . . . . . .Seigler Heater Company, Centralia, Illinois

7

OIL BURNING STOVES AND WATER HEATERS

PREFACE This is the first edition of one of a series of Standards covering minimum requirements for safe operation, acceptable performance, design, construction, manufacture, marking, and testing of oil burning equipment. Nothing in these requirements is t o be considered in a n y way as indicating a measure of quality beyond compliance with the provisions they contain. Safe and satisfactory operation of oil burning equipment depends t o a great extent upon its proper installation. To assure satisfactory and safe operation, equipment complying with the requirements of this Standard should be installed in accordance with the latest issue of CS,4 Standard €3139, Installation Code for Oil Burning Equipment. Appendices and footnotes appearing in CSA Standards are not considered part of the requirements of the Standard but are included to facilitate their use. This Standard was prepared by the Committee on Oil Burning Equipment under the jurisdiction of the Sectional Committee on Oil Burning Equipment and was formally approved b y these Committees and the CSA Technical Council .

OTTAWA, MARCH.1962 NOTE: In order to keep abreast of progress in the industries concerned, CSA publications are subject to periodic r e . Suggestions for improvement, addressed to the General Manager, Canadian Standards Association, 235 Montreal Road,Ottawa 2, will be welcomed at all times. They will be recorded and in due course brought lo the attention of the appropriate committee for consideration.

REFERENCE PUBLICATIONS

REFERENCE PUBLICATIONS-Revise the List of Refe- ence I

Publications as follows :

“B 140.0’’ to read : ‘73140.0-1963” (Make a similar revision in the first sentence o€ Clause 3. I. I) May, 1965 Revision KO.I

B140.3-1962

Blank page

9 NOTE: The Assocktion desires to call attention to the fact that this Shndard is intended to include only the technical provisions necessary for the supply of the article herein referred to, and is not intended to include normal contractual requi~ements.

B140.3-1962 OIL BURNING STOVES AND WATER HEATERS 1. SCOPE 1.l This Specification applies to complete flue-connected oil burning stoves incorporating oil burners of the vapourizing-type.

1.2 The requirements given herein apply to circulating and radiant room heaters, ranges, and combination ranges, as defined in this Specification. NOTE: The fuMowing related appliances are covered by other CSA Standards: Mobile home furnaces and trailer heaters. Refer to CSA Standard B140.10, Mobile Home Furnaces and Trailer Heaters; ( b ) Portable kerosene heaters and stoves that are not intended to be flue-connected. Refer to CSA Shndard B140.9, Portable Kerosene Heaters. (a>

1.3 The requirements given herein apply also to water heaters, as defined in this Specification, when equipped with an oil burner of the vapourizing type. 1.4 The requirements given herein do not apply to units intended for use with pipes or ducts for the distribution of the heated air. 2. DEFINITIONS 2.1 Definitions. The following definitions apply in this Specification : Antiflooding device means a primary safety control which causes the fuel to be shut off upon a rise of fuel level, or upon receiving excess fuel, and which operates before the hazardous discharge of fuel can occur. This classification includes barometric tank and sump assemblies, and most constant-level valves; Barometric feed means that the oiI feed to a burner is supplied, b y gravity, from a barometric tank and sump; Barometric tank means a supply tank, not exceeding 4.5 Imperial gallons (5.4 U S . gallons) capacity, which maintains a definite level of oil in a sump or similar receptacle by barometric feed; Circulating room heater means a room heater with an outer jacket designed primarily to convert the heat of combustion within the appliance to convected heat, by the circulation of air heated by contact with the heat exchanger surfaces ; combination range means a self-contained unit combining an electrical (or gas) cooking appliance with a n oil burning heater; Combustion chamber means that portion of an appliance within which fuel or the gaseous derivatives of fuels are burned; Constant-level valve means a device for maintaining, within a reservoir, a constant level of fuel for delivery to the burner. Antiflooding devices may or may not be incorporated; Gravity feed means that the oil feed to a burner is supplied, by gravity, from a gravity tank;

10

CSA STANDARD B140.3

Gravity tank means a supply tank from which the oil is delivered directly to the burner by gravity; Integral tank means any fuel tank which is furnished by the manufacturer as a component part of the complete assembly, and which is either attached to the appliance (attached integral tank) or is intended for separate mounting in a location adjacent to the appliance which it serves. Such tanks may be further qualified herein as an integral barometric tank or an integral gravity tank, depending on the method of oil k e d ; Mechanical draft means a draft created by mechanical means such as a fan or blower; Mechanical draft burner means a burner designed for use with mechanical draft ; Metering (regulating) valve means a valve for regulating t h e fuel input to a burner;

Natural draft means the reduction in pressure below atmospheric pressure created by a verticaI flue, such as a chimney; Natural draft burner means a burner wholly dependent upon the effects of natural draft for the combustion air supply; Oil burning stove means a flue-connected, self-contained, selfsupporting, floor-mounted oil burning range or room heater ; Radiant room heater means a room heater without an outer casing designed primariIy to convert the heat of combustion within the appliance to radiant heat; Range means a n oil burning stove intended primarily for cooking; Room heater means an oil burning stove designed primarily for direct heating of the space in, and adjacent to that in which the heater is located, without external heating pipes or ducts. The term as used herein is synonymous with space heater; Space heater means a room heater; Sump means the receptacle in which a barometric tank rests, and into which the oil is released from such a tank. The outlet from the sump is connected by piping to the burner ; S ~ p p l ytank means a separate tank connected directly to the oil burning appliance;

Vacuum tank means a barometric tank; Vapourizing-type (oil burner) means a device for the combustion of fuel oil, consisting of a bowl or other receptacle to which the fuel is fed in controlied quantities, and within which the fuel is vapourized and admixed with air in combustible proportions. Examples of this type of burner include : vapourizing pot-type burners ; retort-type burners ; sleeve-type burners; etc. ;

Water heater means a self-contained stationary appliance intended primarily to supply service hot water, as distinct from hot water for heating purposes. This classification includes water heaters having a n integral water storage tank, and “side-arm” heaters intended to be used in conjunction with a separate water storage tank.

OIL BURNING STOVES AND WATER HEATERS

11

3. GENERAL REQUIREMENTS

3.1 General 3.1.1 The equipment shall meet the general provisions of CSA Standard B 140.0, Definitions and General Requirements for Oil Burning Equipment, applicable to all oil burning equipment. Other references herein to that Standard are abbreviated to CSA Standard B140.0. Many of the terms used herein are defined in CSA Standard B140.0. '

NOTE: Throughout this SpecifiGation reference i s made to certain ojhm Standards which shmki? be consulted.

3.1.2 The equipment shall be provided with suitable safety controls as required in CSA Standard B140.0. 3.1.3 The safety controIs provided with each unit shall include a primary safety control, and any other control necessary for the safe operation of the unit. 3.2 Oil Burner. The oil burner, and all associated components, shall meet t h e requirements of t h e applicable CSA Standard. NOTE: The requirements f o r vapourizing-type burners are given in the latesf issue of CSA Standard 23140.1, Oil Burners of the Vapourizing- T y p e and Accessories. Other references herein to this Standard are abbreviated to CSA Standard B140.1.

3.3 Electrical Features 3.3.1 General. The electrical features shall meet the applicable requirements of the pertinent CSA Standard. NOTE: The general requirements for the e2ecfricaZfeatures are given in CSA Standard C22.Z No, 3--196i, Electrical Features of Fuel-Burning Equipment (Gas and Od). The requirements f o r s p e c i f i electrical component parts are given in the applicable standards of the Canadian Electrical Code, Part I 1 (CSA CZ2.2 Series).

3.3.2 Combination Oil-Electric Ranges. The electrical cooking features of combination oil-electric ranges shall comply with the requirements of CSA Standard C22.2 No. 61-1959, Domestic Electric Ranges. 3.4 Methods of Assembly and Shipment 3.4.1 The methods of assembly and shipment of the equipment shall comply with the applicable requirements of CSA Standard B140.0.

3.4.2 Equipment in tended for field-assembly or field-wiring or both shall comply fully with the applicable requirements of Clauses 5 and 6 . NOTES: I. The equipment should be factory-assembled and factory-wired before shipment. 2. I t is recommended that the samples for laboratory jest purposes be factory-assembled and factory-wired.

4. CONSTRUCTION

4.1 General. The materials and workmanshb. and the construction of the equipment shall comply with the applicable requirements of CSA Standard B 140.0.

4.2 Accessibility of Parts 4.2.1 Sufficient and reasonable accessibility shall be afforded to the controls, the burner, the draft regulator, safety devices, and parts requiring normal servicing or adjustment.

12

CSA STANDARD B140.3

4.2.2 The arrangement of removable parts in the assembly shall be such that their restoration, following removal for cleaning, will not necessitate readjustment to secure their proper relationship with other parts of the assembly.

4.2.3 Flue-gas passage ways, flue-baffles, and parts exposed to the products of combustion, shall be readily accessible for brush cleaning and inspection, without requiring major dismantling of the unit or the disconnection of electrical circuits where provided. NOTE: For the purpose of th above requirement, major dismantling of the unit dues not include removal of the JEue pipe or access panels m burners, where S U G ~parts are specifidly designed to permit ready removal and rephcement for servicing.

4.2.4 Suitable means of access shall be provided for cleaning the inlet to the burner as required in CSA Standard B140.1.

4.3 Location of Fuel Lines and Fuel Components. Fuel piping and fuel-handling components shall be accessible for service and inspection without involving major dismantling of the unit. 4.4 Casings and Liners 4.4.1 Outer casings shall be made of steel or other suitable material, reinforced, if necessary, so that they are not likely to be damaged from handling and shipment, installation and use. Sheet steel casings shall be not less than No. 22 gauge (0.0299 inch), in thickness, except where adequate forming or reinforcement is provided. 4.4.2 All exposed surfaces shall be protected adequately against corrosion as far as practicable. The finish shall be protected adequately against damage by heat. 4.4.3 Casing liners and heat baffles shall be securely attached to the appliance in a manner ensuring proper spacing.

4.5 Lubrication of Motors 4.5.1 Ready means of access shall be provided for lubricating motor, and blower or fan bearings, where applicable. The removal of screws and access panels shall be considered acceptable under this provision. 4.5.2 Instructions for lubricating the motor, blower, and €an bearings shall be permanently affixed to, or imprinted upon the motor, fan or blower housing, or on readily visible adjacent surfaces. The instructions shaI1 designate the proper type and grade of lubricants to be used. NOTES:1. The.above marking m a y be in the furm uf a substantial paper sticker or water iransf er. 2. The above instructions may also be inc2uded in the Operating Instructions.

4.6 Flue Collars 4.6.1 Each stove shall be provided with a securely mounted, substantial metal flue collar, suitabIe for attaching a flue pipe. The flue collar shall be of sufficient length to permit secure attachment of the flue pipe.

4.6.2 The flue collar diameter shall not be less than the equivalent of a 4-inch diameter flue pipe, for an appliance having a maximum fuel input rate of 16 cubic centimetres per minute or greater. Where an oval connection is used, the resulting area shall be not less than 80 per cent of the area equivalent to a 6-inch diameter flue pipe, Le., not less than 23 square inches.

13

OIL BURNING STOVES AND WATER HEATERS

4.6.3 T h e flue collar shall not be in close proximity to or directlyabove, the fill opening of an integral tank. 4.7 Flue-Gas Passages 4.7.1 T h e total cross-sectional area of the internal and external fluegas passages shall be not less than the equivalent area of a 6-inch diameter pipe if the maximum fuel input rate of the appliance is 16 cubic centimetres per minute or greater.

4.7.2 For the purpose of interpreting the requirement of Clause 4.7.1, the gross cross-sectional areas at all sections of the flue-gas passages shall be determined. The gross areas so determined shall be not less than 28.5 square inches at any section of the passages. 4.8 Draft Regulators 4.8.1 A suitable draft regulator shall be provided.

4.8.2 Draft regulators shall comply with the requirements of CSA Standard B140.0. 4.9 Heating Surfaces 4.9.1 Heating surfaces, and bafAes, and other surfaces exposed to the direct heat of the flame, or to the products of combustion, shall be constructed of sheet steel, cast iron, or other suitable materials. Sheet steel, if used, shall be such as to ensure strength, rigidity, durability, resistance to corrosion, and other physical properties equivalent to AISI C1010 hot-rolled sheet steel having a thickness not less than as indicated in Table 1.

TABLE 1 THICKNESS OF PLAIN SHEET STEEL FOR HEATING SURFACES Fuel Input Cubic Centimetres per Minute

up t o 57 Over 57

Nominal Thickness

-

Gauge No.

Inchesa

20

0.0359 0.0478

ia

4.9.2 At the discretion of the testing authority, material thicknesses less than those specified in Clause 4.9.1, may be accepted for heating surfaces not exposed to direct contact with the flame. The thickness required for such parts shall be not less than t h a t equivalent to No. 22 gauge AISI C1010 hot-rolled steel (0.0299 inch).

4.9.3 The maximum operating temperatures of the materials forming heating surfaces, baffles and other equivalent surfaces, shall not exceed the temperature limits specified for the material in CSA Standard B140.0, when the equipment is operated under the conditions of the Normal Temperature Test in Clause 7.6. 4.9.4 The burner and combustion chamber shall meet the requirements of the Seepage Test specified in Clause 7.8.

14

CSA STANDARD B140.3

4.10 Levelling. Permanent means of levelling circulating and radiant room heaters shall be provided.

4.11 Glass Containers. GIass shall not be used as a medium for conveying or retaining fuel. 4.12 Anti-Flooding Devices 4.12.1 Each appliance shall be equipped with a suitable anti-flooding device. 4.12.2 The anti-flooding device shall meet the applicable requirements of CSA Standard B140.1.

4.13 Valves. Valves forming a part of, or used in conjunction with, the appliance, shall meet the applicable requirements of CSA Standards B 140.0 and B140.1. 4.14 Integral Tanks 4.14.1 The capacity of an integral tank shall not exceed the applicable value given in Table 2.

TABLE 2 CAPACITY OF INTEGRAL TANKS Maximum Capacity

Type of Tank

I

Imperial Gallons

Gravity Tank Barometric Tank

US, Gallons

9.0

10.8

4.5

5.4

4.14.2 Not more than one integral gravity tank shall be used with a single appliance. 4.14.3 Not more than two integral barometric tanks shall be used with a single appliance.

4.14.4 Integral tanks shall be made of corrosion-resistant metal having physical properties equivalent to AIS1 ClOlO cold-rolled sheet steel with a thickness not less than that indicated by Table 3.

TABLE 3 MATERIAL THICKNESS FOR INTEGRAL TANKS Minimum Thickness

Capacity

Imperial Gallons

I

U.S. Gallons

GaugeNo.

0-5.0

0-6.0

24

5.1-9.0

6.1-10.8

22

I

Inches

0.0239 0.0299

4.14.5 All joints in integral tanks below the fuel level shall be double seamed, beaded, brazed or welded, and all joints not continuously welded or brazed shall be thoroughly sweated with solder. AI1 connections shall be

OIL BURNING STOVES AND WATER HEATERS

15

made through solid threaded bosses or fittings, mechanically secured to the tank. 4.14.6 Integral tanks shall be arranged so t h a t any accumulation of water or sediment may be removed, either by manual means or by a fulldrain feature on the bottom. 4.14.7 Integral tanks shall be securely supported, and may be designed to be removed for filling.

4.14.8 The tank support shall be rigid, non-combustible, and securely fastened to the appliance, except as provided for in Clause 4.14.9. 4.14.9 Integral tanks not designed for attachment t o the appliance, shall be provided with means and instructions for securing t h e tank(s) and their supports to the floor or wall. 4.14.10 Supports for tanks not designed for attachment to the appliance shall be non-combustible and secure, shall be designed to permit ease of filling when installed as intended, and shall be suitable for the application. 4.14.11 Integral tanks shall be designed and arranged so that they may be fiIIed in a manner which will reduce to a minimum the possibility

of spilling fuel during the filling operation. 4.14.12 When the fuel level cannot be observed readily through the fill-opening, means shall be provided to indicate the fuel level in the tank while filling, in order to prevent over-filling. 4.14.13 The fill-opening of an integral tank which is intended for attachment t o a wall shall be readily accessible, when the tank is Iocated as recommended in the instructions. 4.14.14 The minimum dimension of the fill-opening of an integral tank shall be 3 inches. 4.14.15 T h e cover or lid of the fill-opening shall be attached to the

tank. 4.14.16 A shut-off valve shall be installed at the outlet of the tank. Refer to Clause 4.13.

4.14.17 A suitable strainer or filter shall be installed at the inlet or outlet of the tank. NOTE:A wire mesh strainer element is recommended for this application unless an approved strainer is used. Refer to CSA Sh-~ndardB140.0.

4.15 Fuel Lines and Fittings 4.15.1 The fuel lines and fittings shall comply with the applicable requirements of CSA Standard B 140.0. 4.15.2 The fuel lines and fuel-handling components shall be designed and arranged to eliminate air pockets. 4.16 Fuel Oil Filters. The fuel oil filters (or strainers) used as a part of, or in conjunction with a n appliance, shall comply with the applicable requirements of CSA Standard B140.0.

4.17 Observation of the Flame Zone. Provision shall be made to permit adequate observation of the flame zone and the burner fire conditions. A

16

CSA STANDARD B140.3

peep-hole shall be considered adequate if i t readily provides for observation of the flame. 4.18 Refractory Materials 4.18.1 Refractory material, where used for fireboxes, linings, etc., shall be constructed and seasoned t o minimize deterioration of the lining material under normal operating conditions ; as indicated by the refractory material being capable of withstanding the operating conditions encountered when conducting the unit tests of Clauses 7 and 8, without any visible evidence of deterioration or failure.

4.18.2 Refractory materials shall be adequately held in place, and shall be accessible for service or replacement.

4.18.3 The maximum operating temperature of a refractory material shall be less than the recommended maximum temperature for the refractory type-

4.69 Metal Fireboxes 4.19.1 Metal fireboxes (e.g. cast iron, aluminum, stainless steel) where used, shall be constructed for reasonable life; as indicated by the firebox being capable of withstanding the operating conditions encountered when conducting the unit tests of Clauses 7 and 8, without any visible. evidence of deterioration, failure or fatigue.

4.19.2 Metal fireboxes shaIl be fixed securely in position, and shall be accessible for service or replacement. 4.20 Flue Baffles and Flame Baffles 4.20.1 Flue baffles and flame baffles shall comply with the requirements of Clauses 4.9.1 and 4.9.3.

4.20.2 Flue bafAes and flame baffles shall be constructed and located in a manner conducive to reasonable life; as indicated by the baffles being capable of withstanding the operating conditions encountered when conducting the unit tests of Clauses 7 and 8, without visible evidence of deterioration or failure. 4.20.3 Flue baffles and flame baffles shall be held securely in position. Refer also to Clause 4.2.3.

4.21 Insulating Materials 4.21.1 Materials used for insulation, linings, seals, and similar applications shall be suitable for the conditions encountered in service. 4.21.2 Heat insulation, and similar material which may be subjected to heat, shall have heat- and moisture-resisting properties, and shall be of a type that will not support combustion, 4.26.3 Insulating material shall be adequately supported and maintained in the intended position.

4.22 Safety Limit Controls. Safety limit controls when used, shall comply with the requirements of CSA Standard B140.0. 4.23 Water Heaters 4.23.1 Water heaters shall be constructed to withstand the Hydrostatic Pressure Test of Clause 7.5.

OIL BURNING STOVES AND WATER HEATERS

17

4.23.2 The inside surface of water vessels shall be suitably protected against corrosion.

4.23.3 The flue-gas passageways and baffles shall meet the requirements of Clause 4.2.3. 4.23.4 A water heater shall be equipped with an integral safety limit control, (which may be the temperature control), which shall function t o prevent the temperature of the water from exceeding 200F when the equipment is tested in accordance with the Limit Control Performance Test of Clause 7.4.

4.24 Means of Ignition 4.24.1 Burners designed for manual ignition shall be provided with a suitable lighting torch, where ignition cannot be readily achieved without the aid of such a device.

4.24.2 The electrical features of a burner equipped with an electrical ignition system shall meet the applicable requirements of the Canadian Electrical Code, Part I I. 4.25 Mounting 4.25.1 Except where the stove has a n attached integral tank, means shall be provided for fastening the stove to the floor.

4.25.2 Adequate mounting instructions shall be provided in the Installation Manual. NOTE: For information concerning the mounting and location of stoves, refer to CSA Stundard B139-1962, Installation Code for Oil Bwning Equipment.

4.26 Flow Rate. The maximum flow rate measured on the unit as submitted shall be in substantial agreement with the standard flow rate* obtained o n the valve alone. "Refer to CSA Standard B140.1 f o r the requirements and procedures for obtaining staltdard $mu rates.

5. MARKING

5.1 General. The marking shall comply with the applicabIe requirements of CSA Standard B140.0.

5.2 Details Required. Each appliance shall be plainly marked in a permanent manner with the following details: (a) The manufacturer's name, tradename, or other recognized symbol of the manufacturer; (b) The model or type number of the complete unit; (c) The maximum input in suitable units, Le. cubic centimetres per minute, or gallons per hour, or pounds per hour (refer t o the Combustion Test of Clause 7.2); (d) For oil burning stoves, the heat output in Btu per hour (refer t o the Heat Output Test of Clause 7.3); (e) The electrical ratings, where applicable, as specified in CSA Standard C22.2 No. 3-1961, Electrical Features of Fuel-Burning Equipment (Gas and Oil).

18

CSA STANDARD B140.3

The above marking shall be on a non-removable panel of the unit, and shall be readily visible. NOTES:I. Inputs speciJied in gallons per hour are to be ualified by the appropriate measurement, e.g. Imperial (Imp.) or United States ?US.). 2. The heat mfflut marking of Clause 5.2 (d) m a y be less th.an thut actually] determined by test.

5.3 Cautions 5.3.1 The following cautions, or equivalent wordings, shall be located on the appliance so that they are readily visible to the operator when lighting the burner: (a) “WAIT UNTIL THE BURNER IS COOL BEFORE LIGHTING.”; and

(b) “IF THE

BURNER IS FLOODED, DRAIN BEFORE LIGHTING.”

5.3.2 The above cautions shall be on a metal plate, or the equivalent, or a temperature-resistant marking shall be used. NOTE: The above markings may be located on the inside surface of a cabinet door thut provides access to the Zighting door.

5.4 Installation Clearances 5.4.1 Each unit intended for installation with other than standard clearances shall bear a permanent marking giving the minimum clearances from the unit t o adjacent combustible construction when installed.

5.4.2 For units intended for installation on non-combustible flooring, the equipment shall be so marked. 5.4.3 The installation clearance markings shall be located adjacent to, or combined with the details required in Clause 5.2.

5.5 Field Assembled Units 5.5.1 When the unit, and the burner, or other components, are shipped as separate items intended for field-assembly, the following marking or its equivalent shall appear on the unit in a place where the details may be readily seen : 16 FOR USE ONLY WITH (specify the manufacturer of the burner) OIL BURNER MODEL (OR TYPE)”.

5.5.2 The above marking shall be located adjacent to, or combined with the details required in Clause 5.2. NOTE: The above marking may be on a substantial paper sticker, water transfer or the equivalent.

6. INSTRUCTIONS 6.1 General 6.1.1 The instructions shall comply with the applicable requirements of CSA Standard B140.0.

6.1.2 The manufacturer shall provide one set of Installation and Operating Instructions which shall accompany each appliance. 6.2 Installation Instructions. The installation and service instructions shall include the following, where applicable : (a) Wordings equivalent to each of the following:

19

OIL BURNING STOVES AND WATER HEATERS

(i) (ii)

“READ THESE INSTRUCTIONS AND SAVE FOR REFERENCE”

;

“THE INSTALLATION SHALL BE m ACCORDANCE WITH THE REGULATIONS OF AUTHORITIES HAVING JURISDICTION” ;

NOTE: Reference should be made fo CSA Standard Bl39-1962, Installation Code fm Oil Burning Equipment for recommended installation pactice.

The manufacturer’s name or other acceptable identification ; The model or type designation of the equipment covered by the instructions ; Adequate information for the complete installation of the unit, including : (i) Information for properly installing the various components and sub-assemblies of the units, where such components are not f actory-assem bled ; (ii) Information for levelling the unit and the components; (iii) Suitable wiring diagrams for all electrical equipment; (iv) Suitable erection instructions for field-assembled equipment ; NOTE: It is recommended h z t cross-sectional drawiags and/or illustrative descriptims of step-by-step methods for assembling the equipment be employed.

(v) A complete list of all sub-assemblies or components packed separately; (e) Adequate information relative to the placement of the unit, and the clearances t o be observed. The installation clearances specified shall include the recommended minimum clearances between the flue pipe and surroundings, and between the unit and surroundings (e.g. walls, partitions, over-head structures and other combustible materials); and the type of floor permissible (e.g. combustible or non-combustible) ;

(f) A complete wiring diagram of equipment incorporating eIectrical features, and instructions relative to the necessary wiring between the branch circuit and the equipment. This section shall recommend that all field wiring be done in accordance with the applicable electrical code; (9) Information relative to the installation of the fuel tank, and the fuel line to be connected to the burner. This section shall include the minimum clearance between the appliance and the fuel tank; NOTES: 1. This section should be supplemented with illustrations of typical inshllatims. 2. This clause does not apply to attached integral tanks.

(h) Information for securing the unit to the floor, except where an attached integral tank is used ; (i) Adequate information for setting the draft, including: (i) A caution equivalent to the following: “OIL BURNING APPLIANCES SHALL B E CONNECTED TO FLUES HAVING SUFFICIENT DFLAFT AT ALL TIMES, TO ASSURE SAFE AND PROPER OPERATION OF THE BURNER”;

(ii) The manufacturer’s recommended draft in suitable units, i.e. inches of water column either over-fire or chimney (breeching) ; (iii) Adequate information pertaining t o chimneys, Le. size, elevation, condition ; (iv) Instructions for the installation and adjustment of the draft regulator ;

20

CSA STANDARD B140.3

(v) Recommendations for cleaning or replacing the flue pipes; (j) The grades of fuel oil for the burner. The word “distillate” shall n o t appear in the manual when referring to the grades of fuel oil; . (k) Information relative to the installation of refractory fire boxes when furnished separately; (1) Instructions for locating, levelling and fastening the burner, when not installed by the manufacturer; (m) The elevation from the base of the burning unit to the maximum operating fuel level in the fuel level regulating device when field installed ; (n) Information relative to the fresh air supply necessary for satisfactory combustion into the room in which the equipment is located ; NOTE: Refer to CSA Stundurd B139-1962, Instalktion Code for OiZ Burning Equifiment for recommended practice.

The procedure to be followed in adjusting the supply of air (where an adjustable air-shutter is part of the appliance) and fuel for proper combustion (e.g. flame appearance) ; (p) Information relative to checking the installation, and the su isequent maintenance and service of the equipment. (0)

6.3 Operating Instructions. The operating instructions shall include the following information, where applicable : A wording in the forepart equivalent to the following: “READ THESE INSTRUCTIONS AND SAVE FOR REFERENCE” ;

The manufacturer’s name or other acceptable identification ; The model or type designation of the equipment covered by the instructions ; The grade of fuel oil, followed by the caution, in block letters: “DO NOT USE GASOLINE, CRANKCASE OIL, OR ANY OIL CONTAINING GASOLINE” ;

The general manner of starting t h e burner, and of restarting after ignition failure. This section shall include a caution equivalent to the following : “DO NOT ATTEMPT TO START THE BURNER WHEN EXCESS OIL HAS ACCUMULATED, OR WHEN THE BURNER IS HOT” ;

(f

Information relative to the adjustment of the air and oil €or proper flame where applicable ; Instructions for shutting down the burner, and a caution equivalent to the following, where applicable : “ALWAYS KEEP THE VALVE SHUT OFF WHEN THE BURNER IS NOT OPERATING” ;

The general maintenance and care to be given the burner and the unit, when in operation; The care of the unit when closed down for the summer; The general manner of cleaning the equipment; A description of the procedure to be followed in cleaning the oil strainer :

OIL BURNING STOVES AND WATER

HEATERS

21

(1) The following cautions if barometric feed is employed: (i) “THE BAROMETRIC TANK SHALL BE LOCATED SO THAT

THE TANK WILL NOT BE EXPOSED TO THE DIRECT RAYS O F THE SUN, OR B E ADJACENT TO ANY SOURCE OF INTENSE HEAT” ;

(ii)

“THE BAROMETRIC TANK SHALL ALWAYS BE ALLOWED TO REACH ROOM TEMPERATURE BEFORE IT IS PLACED I N THE SUMP”;

(rn)An identified space €or the dealer’s name and address, and telephone number.

7. NORMAL UNIT TESTS 7.1 General 7 J J The performance of the unit under normal conditions of ignition and operation, shall be safe and reliable, when the unit is fired at all fuel input rates over the full operating range of the equipment, and over the full range of recommended fuel oil grades. Excessive carbonization or smoke, excessive temperatures, oxidation, warpage, or other phenomena that would lead to unsafe performance, shall not occur. 7.1.2 If defects begin to become evident, tests” additiona1 to those following hereafter in Clause 7 shall be performed, to determine whether such defects would result in unsafe conditions in normal operation. *Such additional tests may consisf of extensive on-of cydes of operation fur the equipment. NOTES: 1. The sequence of the tests should follow the order s p e c i w hrein, with the Norma2 Unit Tests of Clause 7 peceding the Abnormal Unit Tests sfiscifid in Clause 8. 2. T h e sequence of the tests that follow in Clauses 7 and 8 has been adopted to provide a suitubb teding procedure. 3. The various test requirements of Clauses 7 and 8 are in many instances interdependent; and the acceptance of a unit i s $0 be based upon its ability to meet all of the applicuble requirements speci$ed herein.

7.1.3 All equipment, such as blowers, tanks, and controls, regularly supplied by the manufacturer, shall be in their specified positions. The unit, the burner, and all other equipment shall be in their designed conditions, as normally supplied by the manufacturer.

7.1.4 The heating surfaces, flues, and chimney shall be clean and free from soot and dust at the beginning of each test. All flue-pipe connections which may result in the introduction of air into the flue gases shall be sealed. 7.1.5 The instrumentation and methods of testing shall be in accordance with the procedures of CSA Standard B140.0. 7.2 Combustion 7.2.1 Test Requirements 7.2.1.1 Combustion. The combustion shalI be stable and complete at all fuel input rates over the full operating range of the equipment, under normal operating conditions. 7.2.1.2 Smoke Density. The amount of smoke in the flue gases (the smoke density) shall not exceed that corresponding to a No. 7 ShellBacharach smoke-spot, at any fuel input within the operating range of the equipment. 7.2.1.3 Maximum Flue-Gas Temperature. The maximum temperature of the flue gases shall not exceed 1,OOOF (total), based on a

22

CSA STANDARD B140.3

nominal room ambient temperature of 77F, when the unit is tested in accordance with the procedures in Clause 7.2.2. 7.2.1.4 Minimum Flue-Gas Temperature. Except during pilot-fire operation, the temperature of the flue gases shall be not less than 300F (total) when the unit is tested in accordance with the procedures in Clause 7.2.2. 7.2.1.5 Operating Flow-Rate. The operating flow-rate measured at the beginning and at the end of the normal unit tests shall be in substantial agreement with one another, and with the standard flow-rate. NOTE: Refer tu CSA Standard B140.1 for the definition of the term “shandard Jlour-rate”; and the procedure for determining the standard $ow-rate.

7.2.2 Test Procedures 7.2.2.1 The burner mechanism shall be adjusted to the maximum fuel input specified by the appliance manufacturer, plus or minus 2 per cent, using the heaviest grade* of fuel oil recommended by the manufacturer. *As G

in CSA Skmdard B140.0.

~ Z S S ~ & ~

7.2.2.2 For the purpose of determining the compliance of t h e equipment with the requirements of Clauses 7.2.1.1 and 7.2.1.2, the burner shall be tested also at various fuel input rates other than t h a t specified in Clause 7.2.2.1. 7.2.2.3 Where the unit is provided with a n optional mechanical draft assembly, the tests shall be conducted on the unit both with and without the mechanical draft assembly. 7.2.2.4 The natural draft in the chimney shall be adjusted to the minimum draft recommended by the manufacturer in the instalIation instructions, but shall not be less than 0.02 inches water column, nor more than 0.06 inches water column, except as provided for in Clause 7.2.2.5. 7.2.2.5 The minimum chimney draft for units equipped with sleeve-type burners shall be that recommended by the manufacturer in the Installation Instructions. 7.2.2.6 If a mechanical draft assembly is used, the natural draft in the chimney shall be estabhhed with the forced-draft fan inoperative, and shall not exceed the natural chimney draft permitted by Clause 7.2.2.4. When the draft has been established, then the fan shall be operated for the purpose of conducting these tests. No further adjustments of draft conditions shaIl be made during the tests. 7.2.2.7 A suitable draft regulator shall be used for the purpose of maintaining the chimney draft during the tests. A draft regulator which forms an integral part of the equipment shall be sealed for these tests, and a separate regulator shall be provided and used for test purposes. 7.2.2.8 Where combustion-air adjustment is normal procedure, the burrier air adjustment shal1 be regulated as recommended by the manufacturer in the Instructions. NOTES: 1. For the. pu7pose of these tests, the per cent of carbon dioxide (COJ in the flue guses may be specified and used in establishing the recommended air-fuel ratio. 2. A i r adjustment does not refer tu the draft regulator setting.

7.2.2.9 The chimney draft, the flue-gas temperature, and the smoke density shall be determined in accordance with the procedures in CSA Standard 13140.0.

OIL BURNING STOVES AND WATER HEATERS

23

7.2.2.10 The required test observations shall be recorded after steady-state operating conditions have been established for the equipment. The combustion characteristics shall remain stable throughout the determination, as evidenced by consistent values being obtained for three consecutive sets of readings taken at S m i n u t e intervals. 7.3 Heat Output - Oil Burning Stoves 7.3.1 Test Requirements 7.3.1.1 Heat Output. The manufacturer’s specified* heat outp u t for a n oil burning stove shall not exceed the heat output determined in accordance with the procedures of Clause 7.3.3. ‘Refer to the requirements for marking in Clause 5.2.

7.3.1.2 Optional Mechanical Draft. Where the stove is provided with an optional mechanical draft assembly, the requirement of Clause 7.3.1.1 shall be met when the unit is tested both with and without the mechanical draft assembly. NOTE: Two heat output ratings m y be required fur such a unit.

7.3.2 Test Procedures 7.3.2.1 The unit shall be installed within the appropriate temperature test chamber described in Clause 7.6, and shall be located in an area free of drafts.

7.3.2.2 The room temperature shall be measured by a shielded thermocouple, located in accordance with Clause 7.6.1.9. 7.3.2.3 The burner mechanism shall be fired at the maximum fuel input rate determined in the Combustion Test of Clause 7.2, and shall be operating under the conditions established in Clause 7.2.2. 7.3.2.4 The required test observations shall be recorded after steady-state operating conditions have been established for the equipment, as evidenced by consistent flue-gas readings.

7.3.3 Determination of Heat Output 7.3.3.1 When the conditions of Clause 7.3.2 have been met, the heat output shall be determined from the following: Heat Output (Btu/hr) = Heat Input (Btu/hr) Flue-Gas Loss (Btu/hr); or Heat Output (Btu/hr) = Heat Input (Btuihr) X (100 - per cent flue-gas loss) 100 7.3.3.2 The heat input in Btu per hour shall be calculated on the basis of the method given in Clause 11.

7.3.3.3 T h e flue-gas loss (as a percentage) shall be calculated on the basis of the method given in Clause 12. 7.3.3.4 The test observations required in Clauses 7.3.3.2 and 7.3.3.3 shall be conducted with the equipment continuing in operation for at least one hour; and the required observations shaII be recorded a t the start of the one-hour period, and at the end of each of four consecutive 15-minute intervals thereafter.

24

CSA STANDARD B140.3

7.4 Limit Control Performance (Water Heaters) 7.4.1 The safety limit control(s), when adjusted to the maximum setting, shall function to prevent the water temperature in the heater from exceeding 200F. 7.4.2 T h e unit shall be fired at maximum fuel input with the limit controIs operative and adjusted t o the maximum temperature setting. The outlet water temperature shall be established by gradualIy restricting the flow of the water, until the limit control operates to shut off or reduce the fire. 7.4.3 For units designed for high-fire/pilo t-fire operation, the hot water outlet shall be completely shut off, and the pilot-fire adjusted to its maximum setting or t o t h a t setting recommended by the manufacturer, whichever is greater. The limit controls shall be adjusted t o the maximum temperature setting, and shall remain operative throughout the test. The unit shall be installed in the appropriatk temperaturetest enclosure. The test shall be continued for a period of 48 hours, and the maximum temperature obtained during this test shall not exceed that specified in Clause 7.4.1. 7.5 Hydrostatic Pressure (Water Heaters). The water vessel shall withstand a hydrostatic pressure test of 300 pounds per square inch gauge, without evidence of leakage or permanent distortion. The rate of pressure application shall be 20 pounds per square inch per second, and the test pressure shall be held for 15 minutes.

7.6 Normal Temperatures 7.6.1 Test Requirements 7.6.1.1 The temperature on the walls, floors* (and overhead structures for water heaters) in the vicinity of the appliance, and the temperatures of the materials, and components of the equipment, shall not exceed the allowable maximum temperature limits, when the unit is installed and operated as recommended by the manufacturer, and in accordance with the requirements given herein. *Except for units intended for placement on non-combustible floors.

7.6.1.2 The equipment shall be installed and operated in the appropriate test enclosure, as described in Clauses 7.6.2 and 7.4.3, using the clearances to the enclosure as recommended by the manufacturer in the Installation Instructions. 7.4.1.3 The installation clearances and the type of enclosure recommended by the manufacturer shall be such t h a t the operator and serviceman will be afforded sufficient and reasonable accessibility to all parts of the equipment requiring normal adjustment or maintenance. 7.6.1.4 The unit shall be operated and tested in accordance with the provisions of Clause 7.6.4. 7.6.1.5 The normal operating temperature of the materials and components of the equipment, and of the enclosure, shall not exceed the applicable maximum temperature limits specified for normal operation in CSA Standard B 140.0. 7.6.1.6 The temperatures at the walls, floors*, overhead structures, or any other combustible surface of the test enclosure adjacent t o the unit shall not exceed the room ambient temperature by more than 90F, based on a nominal room ambient temperature of 771;.

OIL BURNING STOVES AND WATER HEATERS

25

"Except f o r units intended f o r placement on non-combustible floors. NOTE: Far units intended for pkcement on combustible floors, the temperature limit specified in Clause 7.6.1.6 applies to the floor beneath, and within three feet of, the unit.

7.6.1.7 The temperature of fuel in tanks, valves, sumps, etc., shall not exceed the room ambient by more than 25F. 7.6.1.8 For units intended for installation with no (zero) clearances t o the surrounding combustible construction of the enclosure, the temperature limit specified in Clause 7.6.1.6 shall apply to the outer casing of the unit being tested. 7.6.1.9 For units installed in alcoves or closets, or within similar confined enclosures, the room ambient temperature shall be considered as t h a t external to the confined enclosure proper; and shall be determined as for the standard enclosure, as outlined in Clause 10. NOTE: The akme or closet may be installed within the standurd enclosure, and the rvom iemperahre then is taken at the location specified in Clause 10.

7.6.1.10 The surface temperatures of all hardware, such as valve control handles, knobs, levers, etc., which the operator may normally come in contact with during normal operation and adjustment of the unit, shall not exceed the room ambient temperature by more than 63F, based on a nominal room ambient temperature of 77F.

7.6.2 Test Enclosures 7.6.2.1 The test enclosure in which the unit is to be installed shall simulate, in each case, the actual installation conditions anticipated for the type of unit. 7.6.2.2 The panels forming the test enclosure shall be made from 1-inch nominal thickness pine boards, or %-inch plywood, or the equivalent. 7.6.2.3 All joints in the panels and the enclosure shall be sealed with tape, or the equivalent. 7.6.2.4 The enclosure floor, which shall be used where the unit is intended for placement on combustible flooring, shall consist of superimposed layers of %-inch plywood or I-inch pine boards, then building paper, and finally a top surface of %-inch birch, oak, or equivalent hardwood flooring. The top surface shall have a clear-varnish finish. 7.6.2.5 All panel faces exposed to the unit, to the flue pipe, and to similar hot surfaces of the equipment, shall be finished in dull-black (including side walls, ceilings, etc.). 7.6.2.6 Studs and joists employed for test enclosures shall have natural (unfinished) exposed faces. 7.6.2.7 Standard Enclosure. The standard enclosure shall consist of three right-angled vertical wall panels, each panel measuring 8 feet by 8 feet, mounted on three sides of the floor described in Clause 7.6.2.4, and a short 8-foot by 2-foot vertical wall panel, across the front of the enclosure. NOTE: Refer la Clause 10 for dlustrations of the standard enclosure.

7.6.2.8 Temperatures shall be determined on the wall panels adjacent to the unit, and on the floor beneath, and within three feet of, the unit. 7.603 Installation Methods 7.4.3.1 The unit shall be installed in the appropriate enclosure in the as-received condition, or as recommended by the manufacturer in

26

CSA STANDARD B140.3

the Installation Instructions, using the clearances recommended in the Instructions. 7.6.3.2 The enclosure shall be located in a n area that is free of drafts, to minimize the effects of drafts on the temperature determinations. 7.6.3.3 All equipment wiring shall be completed by the manufacturer on all units submitted for test. 7.6.3.4 The controls shall be located as specified by the manufacturer in the Installation Instructions unless integral with the equipment. 7.6.3.5 A suitable draft regulator shall be used, and shall be located, where possible, according to the manufacturer’s Instructions. A draft regulator which forms an integral part of the equipment shall be sealed for these tests, and a separate regulator shall be provided and used for test purposes. 7.6.3.6 The flue pipe shall be the same nominal size as the flue collar of the appliance. All joints shall be sealed. Black stove pipe not heavier than No. 24 gauge shall be used for the purpose of these tests. 7.6.3.7 Any shield that is provided as a component part of the appliance, and is intended for attachment to the appliance, shall be in its specified position during the temperature tests. Separate shields that are not intended for attachment to the appliance (e.g. that attach to walls, etc.), shall not be used for these tests. 7.6.3.8 The unit shall be level. The levelling means, if provided, shall be adjusted to provide the minimum clearance to the floor panel.

7.6.4 Test Procedures 7.6.4.1 General 7.6.4.1.1 The unit shall be operated under the test conditions established by Clause 7.2. 7.6.4.1.2 Limit controls, when used, shall be by-passed to permit continuous high-fire operation. 7.6.4.2 Room Heaters. Each room heater unit shall be operated under the test conditions established by Clause 7.3, in addition to those of Clause 7.2. 7.6.4.3 Water Heaters 7.6.4.3.1 Each water heater unit shall be operated under the test conditions established by CIause 7.2. 7.644.3.2 For a water heater, the water flow shall be adjusted so that the outlet-water temperature obtained during this test is maintained at the value allowed by the maximum setting of the limit control, as determined in Clause 7.4. 7.6.4.3.3 For a water heater having a high-fireipilot-fire burner, the test shall be repeated under the conditions established by Clause 7.4.3. 7.6.4.4 Ranges 7.6.4.4.1 The unit shall be operated under the conditions established by Clause 7.2. 7.6.4.4.2 The test shall be repeated under the conditions established by Clause 7.6.4.4.1, except that the flow rate shall be adjusted

OIL BURNING STOVES AND WATER HEATERS

27

to maintain an oven temperature of 450F. The following additional conditions shall be maintained during the test: (a) On the heating surface, shallow pans containing water shall be placed, of such size and shape as to cover not more than 45 per cent of the effective heating surface; (b) The pans shall have flat, dull-black bottoms; (c) The depth of the water shall be maintained a t not less than one inch. 7.6.4.5 Combination Ranges 7.6.4.5.1 The unit shall be operated under the conditions established by Clause 7.2, with only the oil section operative. 7.6.4.5.2 For oil-electric combination ranges, the temperature test shall be repeated under the following conditions: (a) The oil burner shall be fired a t rated capacity until steady conditions have been established, before the electric section is operated; (b) The electric section of the range then shall be operated in accordance with the temperature test requirements of CSA Standard C22.2 No. 61-1959, Domestic Electric Ranges ; (c) The fuel input shall then be increased to maximum, when the heater element switches are turned on “high”, and then reduced to maximum input when the switches are turned t o give half wattage; (d) During the test, the oil range section shall carry a water pan as described in Clause 7.6.4.4.2. 7.6.4.5.3 For oil-gas combination ranges, the gas section shall be fired in accordance with the conditions outlined for the electrical portion of oil-electric ranges in Clause 7.6.4.5.2.

7.7 Blower Motor Rating

7.7.1 For units equipped with forced-air blowers or fans, the temperature of the rnotor(s) shalI not exceed the applicable limit specified in CSA Standard B140.0, when the unit is operated in accordance with the provisions of Clause 7.7.3. 7.7.2 If the motor is to be interchanged in production with other approved motors, the brake-load imposed on the motor under the test conditions specified in Clause 7.7.3, shall not exceed the horsepower rating of the motor. NOTE: Ab the discretion of the testing authority, the loading of the motor m y be considered accefltabb ;f the electrical input to the mofm, in amperes, does not exceed 110 per cent of the motor nameplate ampere rating, when tested in accordance with the prmisions of Cktuse 7.7.3.

7.7.3 The appliance shall be operated in accordance with Clause 7.2 and the blower adjusted to deliver maximum available air volume. The blower motor shall be operated at rated voltage and frequency. 7.8 Seepage 7.8.1 There shall be no hazardous seepage of fuel from openings in the burner or the combustion chamber, when the fuel valve is left fully open and the burner n o t lighted for a period of 12 hours.

28

CSA STANDARD B140.3

7.8.2 Units with integral ignition systems shall meet the requirements of Clause 7.8.1 in the event of ignition failure.

7.9 Flooding 7.9.1 For appliances in which the relationship between the fuel regulating device and the burner is rigidly fixed at the factory, fuel shall not be discharged from the burner with the appliance tipped one degree from level, when the fuel level in the burner has been increased inch above the normal flooded level.

7.9.2 For appliances in which the relationship between the fuel level regulating device and the burner is not fixed at the factory, fuel shall not be discharged from the burner with the appliance level and when the fuel in the burner has been increased % inch above the operating fuel level in the fuel level regulating device. In cases where the relationship between the burner and the fuel level regulating device is difficult to determine, then the inch shall be increased to 1 inch. 7.9.3 Where the fuel level regulating device is designed to trip the shut-off valve mechanism when the oil in the burner is at a lower level than the fuel operating level of the device, the tripping level specified in Clauses 7.9.1 and 7.9.2 shall replace the operating level in the test.

7.10 Stability 7.10.1 When tilted in any direction, the product of the minimum force (in pounds) required to tilt the appliance, and the angle (in degrees) through which the appliance is tilted before i t will fall of its own accord, shall not be less than 150.

7.10.2 An appliance shall meet the above requirements over the full range of adjustment of the levelling screws. 7.10.3 An appliance with a n attached integral tank shall meet the above requirements with the supply tank either empty or full. 7.10.4 The requirement of Clause 7.10.1 shall not be applied to appliances which are intended to be firmly secured to the floor.

7.11 Rigidity 7.11 1 Integral Tanks. Integral tanks, when properly installed using the means provided, shall be capable of withstanding, for at least 5 minutes, a horizontal pull of 25 pounds applied at the top of the tank. 7.11.2 Constant-Level Valves. A constant-level valve or sump assembly, not enclosed within the stove casing, nor otherwise adequately

.

protected, shall withstand a load of 100 pounds, applied vertically or horizontally in any direction, without the position being permanently altered by more than 3 degrees in any horizontal or vertical plane.

7.12 Ignition. The ignition of the burner(s) under normal conditions likely to occur shall be reliable, and no hazardous puffs or flashes shall take place. 7.13 Capacity (Integral Tanks) 7.13.1 The capacity of an integral gravity tank shall not exceed 9.0 Imperial gallons (10.8 U S . gallons).

OIL BURNING STOVES AND WATER HEATERS

29

7.13.2 The capacity of a n integral barometric tank shall not exceed 4.5 Imperial gallons (5.4 U.S. gallons).

7.14 Excess Capacity (Barometric Feed) 7.14.1 Where an appliance utilizes barometric feed from a single tank, fuel shall not be discharged from the burner when, with the regulating valve open, a quantity of fuel equal to 6 per cent of the capacity of the tank, is added to the amount normally in the sump. 7.14.2 For an appliance utilizing barometric feed from two tanks in a common sump, the required excess capacity shall be that required for the larger tank multiplied by 1.4.

7.15 Pressure Test (Barometric Tanks). Barometric tanks shall be capable of withstanding for at least 5 minutes without distortion or leakage, an internal pressure of 5 pounds per square inch gauge. 8. ABNORMAL TESTS 8.1 General 8.1.1 When tested under such abnormal conditions as are likely to occur in service, as specified in Clause 8, the operation of the unit shall not be hazardous to life or property. 8.1.2 The abnormal tests to be applied to a specific unit shall be based on the abnormal operating conditions likely to occur for the type of unit. 8.1.3 The applicable provisions of Clauses 7.1.3 to 7.1.4 inclusive shall apply when conducting the abnormal unit tests that follow in this Clause 8.

8.2 Flooded Pot Burn-Off 8.2.1 The unit shall not create a hazard when the fuel in the burner . . is Pot ignited after a flooded-pot condition has been established. 8.2.2 The equipment shall be installed in the enclosure required for the Normal Temperature Test, as described in Clause 7.6. 8.2.3 The test shall be conducted on the basis of the following procedure. The oil in the burner pot shall be ignited after a flooded-pot condition has been established. The metering valve shall be left open a t its maximum setting. Limit controls, when used, shall be operative. The test shall be continued until normal operating conditions have been re-estab1ished. 8.2.4 There shall be no hazardous discharge of flame or products of combustion during the test; nor the creation of any phenomena that would lead to unsafe performance of the unit. There shall be no deleterious effects to the materials and components of the equipment (e.g. the combustion chamber, the insulation, etc.), or to the adjacent combustible construction, as a result of the test. I

.

8.3 Abnormal Chimney Draft 8.3.1 The ignition and operation of the unit shall be safe and reliable under abnormal chimney draft conditions. 8.3.2 For the purpose of this test, the abnormal draft conditions shall include natura1 chimney drafts from 0.03-inch to 0.12-inch water-column. NOTE:

The above requirement is based on an anticipated normal chimney draft of 0.06 inch water-column f o r most domestic applications, and represents abnormal chimney drafts from one-half to twice this normal value.

30

CSA STANDARD B140.3

8.4 Abnormal Voltage 8.4.1 The operation, and where applicable, the ignition of units equipped with electrical features shall be safe and reliable at any voltage between 78 and I15 per cent of rated voltage; and with the oil and the burner at a temperature within the range 32 to 40F, where applicable. 8.4.2 For the purpose of this test, the rated voltage shall be 115 volts for “rated” voltages of 110 volts to 120 volts, and 230 volts €or “rated” voltages of 220 volts to 240 volts. NOTE: The rated voltage referred to in quotation marks, thus-(‘rated”, is the voltage specified on the nameplute(s) of /he equipment or the components.

8.4.3 The unit shall be cycled on-and-off at intervals which shall be determined by the testing authority as adequate for the equipment involved. 8.4.4 The ignition shall be attempted with the burner flooded. There shall be no hazardous discharge of vapour. The burner shall meet the intent of Clause 8.4.1. NOTE: Refer also to Clause 9 on Burner Tests.

8.5 Power Failure 8.5.1 Units equipped with electrical features shall continue to operate safely, or shall shut down in the event of a power failure, and shall operate safely upon the resumption of the power supply.

8.5.2 The equipment shall be installed in the enclosure required €or the Normal Temperature Tests, as described in Clause 7.6. 8.5.3 There shall be no deleterious effects to the materials and components of the equipment (e.g. the combustion chamber, the insulation, the electrical components, etc.) , or to the adjacent combustible construction, as a result of the test; nor the creation of any phenomena that would lead to unsafe operation of the unit. 8.6 Abnormal Temperature 8.6.1 The following abnormal temperature test shall be conducted at the conclusion of the Normal Temperature Test of Clause 7.6. The tests to be applied to a specific unit shall be based upon the abnormal operating conditions likely to occur for the type of unit.

8.6.2 Disconnected Blower. The test shall be conducted on a n appliance equipped with a blower. The blower motor shall be disconnected from the electrical circuit; the burner and other equipment shall be allowed to continue operating. The maximum temperatures attained during the test shall be within those temperature limits prescribed for abnormal operation in CSA Standard B 140.0. 9. BURNER TESTS 9.1 General 9.1.1 The burners provided with the equipment shall meet the applicable requirements of the test section of CSA Standard B140.1, Oil Burners of the Vapourizing-Type and Accessories.

9.1.2 The tests shall include such tests outlined therein as “Ignition”, “Seepage”, and shall include all other such burner and component tests as are applicable.

OIL BURNING STOVES AND WATER HEATERS

31

10. TEST ENCLOSURE AND INSTALLATION

METHODS FOR TEMPERATURE TESTS 10.1 General 10.1.1 Clause 10 outlines the details pertaining to the temperature test enclosures required for various types of stoves, when tested in accordance with the procedures outlined in this Specification.

10.1.2 T h e detaiIs pertaining to the test enclosures are outlined in Clause 7.6.2 which should be consulted in connection with the material given in this Clause 10.

10.2 Reference Figures. Figures 1 to 3 which form part of this Clause 10, are used to illustrate the details of design and application. Figure 1: Illustrates the standard type of enclosure to be used. Figure 2: Illustrates (by plan view) the placement of a room heater inside the standard enclosure. Figure 3: Illustrates (by plan view) the placement of a range inside the standard enclosure. 10.3 Details of Design and Application 10.3.1 The test enclosure shall be located in a n area reasonably free from drafts.

10.3.2 T h e construction of the test enclosure, the materials, and the finish shall be in accordance with the requirements of Clause 7.6.2. 10.3.3 T h e dimensions of the test enclosure, and the placement of the unit within the enclosure, shall be based on the manufacturer’s recommendations in the Installation Instructions, and shall be in accordance with the requirements given in Clause 7.6.3 herein, and in CSA Standard B140.0. 10.3.4 The room ambient air temperature shall be determined b y means of a shielded thermocouple.

10.3.5 Ranges shall be installed in accordance with CIause 10.3.3 within the standard enclosure, and the room ambient temperature shall be determined in accordance. with Clause 10.3.4 and Figure 1.

32

CSA STANDARD B140.3

1

I

NOTES: 1. All inside panel faces do be finished dull-black, except for the floor which is to be finished in clear varnish. 2. The minimum clearance above the test enclosure must be 4 feet. 3. R: Room temperature measurement location.

FIGURE I STANDARD ENCLOSURE

OIL BURNING STOVES AND WATER HEATERS

k

z

x

33

t

Y I

4

ROOM TEMPERATURE MEASUREMENT LOCATION. NOTES: 1. Clearances “X” and “Y’? are to be specified by the manufacturer. 2. The clearance to the flue p i p e , “Z”, s k l l be not less than 9 inches.

FIGURE 2 LOCATION OF ROOM HEATER IN STANDARD ENCLOSURE

34

CSA STANDARD B140.3

DULL BLACK - FINISHED 3/4

INCH PLYWOOD

ROOM TEMPERATURE MEASUREMENT LOCATION.

NOTES: 1. Clearances “W”, “X” and Y”are to be specifid by the manufacturer. 2. Ckarance from the $ue pipel “ Z ” , shul2 be not less than 9 inches. 3. The side clearance (;.e. “X”or “W”) shall be not less than 6 inches on the oven side of the range, or combination range ut the end a w a y f h m the burner. I‘

FIGURE 3 LOCATION OF RANGE IN STANDARD ENCLOSURE

11. DETERMINATION OF THE HEAT INPUT

FOR OIL BURNING STOVES 11.1 General. Clause 11 outlines the method t o be used in determining the heat input to the oil burning stove in Btu per hour. The method outlined relates the heat input to the rated fuel input and the anticipated gross heating vafue of the fuel for the fuel grade used.

11.2 Method of Calculation 11.2.1 For the purpose of the heat input calculations, the fuel shall be assumed to have a gross heating value corresponding to the maximum recommended Grade Number, as given in Table 6. 11.2.2 For Grade No. 1 (stove) oil, a gross heating value of 19,750 Btu per pound shail be assumed (corresponding to a Gravity of 40 API). 11.2.3 For fuel oils other than Grade No. 1 (stove) oil, the fuel shall be assumed to have a gross heating value determined from Table 6, based on the API Gravity corrected from the observed temperature to the standard temperature of 60F as given in Table 4.

OIL BURNING STOVES AND WATER HEATERS

33

11.2.4 The fuel oil used for the tests shall have an API Gravity approximating the assumed value specified in Clauses 11.2.2 or 11.2.3.

11.2.5 The API Gravity of the fuel used for test shall be determined by a hydrometer in accordance with ASTM Standard D287-1955, Method of Test for API Gravity of Petroleum, Hydrometer Method.

11.2.6 For the purpose of these tests, the observed fuel input, in terms of the weight of fuel used, shall be maintained to within pIus or minus two per cent of the rated fuel input. 11.2.7 The observed fuel input, in pounds per hour, shall be determined by weighing the fuel with suitable scales. At least three consecutive determinations of the rate of fuel consumption, agreeing within one per cent, shall be made; and the determinations shall be repeated at appropriate intervals throughout the test. 11.2.8 When the conditions of Clauses 11.2.4 and 11.2.7 have been satisfied, the heat input shall be calculated. The rated fuel input shall be used in the calculations. 11.2.9 The appropriate altitude correction factor from Table 5 may be used for converting a n observed fuel input rate that results in a No. 7 Shell-Bacharach smoke-spot at higher altitudes, to the corresponding fuel input rate at sea level.

11.2.10 The heat input, in Btu per hour for No. 1. fuel oil, shall be calculated as follows: Heat Input (Btu/hr) = Rated Fuel Input (lb/hr) X Assumed Gross Heating Value of Fuel (Btu/lb) = Rated Fuel Input (lb/hr) x 19,750 (Btu/lb)

11.3 Explanation of Table 6 11.3.1 The gross heating values given in Table 6 represent the total heat of combustion for the fuel at constant volume, calculated on the basis of: Q,, = 22,320 - (3780 X (specific gravity)2), Where QY,the gross heating value (the total heat of combustion) is expressed in Btu per pound.

11.3.2 The hydrogen-loss is accounted for in the determination of the flue-gas loss in Clause 12.

36

CSA STANDARD B140.3

TABLE 4 REDUCTION OF OBSERVED API GRAVITY TO STANDARD API GRAVITY AT 6OF Observed Temperature of Oil

Degrees F

34

50 60 70 80 90 100

34.7 34.0 33.3 32.6

1

35

35.7 35.0 34.3 33.6

1

36

36.7 36.0 35.3 34.6

I

Observed Gravity (DegreesAPI) 37

~

37.7 37.0 36.2 35,5

I

1

38

38.7 38.0 37.2 36.5

39

40

39.8 39.0 33.2 37.5

40.8 40.0

39.2 38.4 37.7 37.0

I

41

42

41.8 41.0 40.2

42.8 42.0 41.2 40.4 39.6 38.9

39.4 38.7 37.0

NOTES:1. The above figures are adapted from Table No. 5 in A S T M Standard 01250-56, ASTM- IP Petroleum Measurement Tables. 2. The A P I Gravity may be calculated from the specifi gravity as follows: 141.5 A P I Gravity (Degrees)= - 131.5 (Spec& Gravity at 60 F

)

TABLE 5 TABLE OF ALTITUDE CORRECTION FACTORS Approximate Altitude

Barometric Pressure

Feet

Inches Mercury

0 500 1,000 1 500 2 000 2 ? 500

3,000 3 500

Correction Factor

Approximate Altitude. Feet

30.0 29.5

1.00 1.02

4,000 4,500

29.0 28.5 28.0 27.5 27.0 26.5

1.04 1.06 1.08 1.10

5,000 5,500

1.12 1.14

6,000 6,500

7,000

Barometric Pressure

Correctf on Factor

Inches Mercury

26.0 25.5 25.0 24.5 24.0 23.5 23.0

1.16 1.18 1.20

1.22 1.24 1.26

1.28

“The eflectzve heat-output rating for regions higher than sea level may be estimated by dividing the rated hourly heat output at sea level by the correction factor corresfionding to the higher altitude indicated in the above table.

37

OIL BURNING STOVES AND WATER HEATERS

TABLE 6 GROSS HEATING VALUES FOR FUEL OIL Gravity

at 6OF

Specific GraVIQ

Pounds per (U.S.)

Gallon

Pound

0.8550

7.128

19,560

at 60F/60F

I

34

Gross Heating Values

Density

Btu Per

Btu per (U.S.) Gallon

139,400

Fuel Oil Grade

No.

2

~

35 36 37 38 39

0.8398 0.8348 0.8299

7.085 7.043 7.011 6.960 6.920

19,590 19,620 19,650 19,680 19?720

138,800 138,200 137,600 137,000 136,400

40

0.8251

6.879

19?750

135,800

41 42 43 44

0.8203 0.8155 0.8109 0.8063

6.839 6.799 6.760 6.722

19 780 19,810 19,830 19 860

135,200 134 I 700 134,100 133,500

0.8498

0.8.148

~

1

.Refer to Chase i1.3.1. To obtain the equivalent Btu per Imperial gallons, multiply the Btu per US.gallm v a h e by (1.2). NOTES:1. The above figures are abstracted from the US. National Bureau of Standards Miscellaneous Publicution M97, Thermal Properties of Petroleum Products (Table 6 ) . 2. For units designed fur use primarily with No. I (stove) oil, use a gross heating value of 19,750 Btullzr (equivalent to a 40API oil).

12. DETERMINATION OF THE FLUE-GAS LOSS FOR OIL BURNING STOVES 12.1 General. Clause 12 outlines the method to be used in determining the flue-gas loss for the oil burning stove, expressed as a percentage. The method outlined relates the flue-gas loss to the flue-gas temperature and the percentage carbon dioxide (C02) in the flue gases, and accounts for the loss due to irncornplete combustion. 12.2 Method of Calculation 12.2.1 The flue-gas temperature, and t h e percentage carbon dioxide (CO,), oxygen ( 0 2 ) and carbon monoxide (CO) in the flue gases, shall be determined in accordance with the procedures and locations given in CSA Standard B140.0. 12.2.2 Unburned fuel gases shall not occur in the flue gases in sufficient quantities t o be measurable by recognized methods of flue gas analysis* as unburned fuel gases or vapours in excess of 0.2 per cent by volume; or result in failure of the observed COZ and 0 2 values to check a t the ultimate by more than 0.5 per cent 0 2 on the chart, Figure 4. "Refer to CSA Standard B140.0.

12.2.3 The percentage loss due to incomplete combustion (expressed as carbon monoxide in the flue gases), shall be determined by the following formula : Per cent COZ Per cent C X 10160 Per cent loss = Per cent COS Per cent CO Gross Heating Value

+

38

CSA STANDARD B140.3

12.2.4 When the above values have been determined, the flue-gas loss, expressed as a percentage, shall be obtained from the chart, Figure 5.

12.2.5 The percentage of flue-gas loss obtained from Figure 5 shall be corrected by adding, if present, the percentage loss due to incomplete combustion, as obtained from the formula of Clause 12.2.3. 12.3 Explanation of Figures 4 and 5 12.3.1 The values given in the charts, Figures 4 and 5, are based on anticipated average compositions for a No. 1 (stove) oil having an API Gravity of 40.0 Degrees. NOTE: The percentages of the fuel elements that kava been used in calculating Figures 4 and 51 based on a study of representative stove oil samples, are: Percentage carbon ( C ) = 86.4 Percentuage hydrogen ( H ) = 13.35 Percentage sulphur (S) = 0.15 OthS = 0.10 and the- Gross Heating Vulue (frmn Table 6 ) = 19,750Btu per pound.

12.3.2 The percent of flue-gas loss given in the chart, Figure 5 , represents the sum of the dry flue-gas loss (the sensible heat loss in the dry flue gases as determined by the Orsat analysis), and the loss due to the hydrogen in the selected fuel (the latent heat loss in the flue gases). 12.3.3 Not included in the per cent of flue-gas loss are the loss due to the moisture content in the combustion air, the loss due to the evaporation of moisture in the fuel, the loss due to radiation, or unaccounted-for losses. No corrections need be applied for these losses.

12.3.4 No correction need be applied for the heat loss due t o the sulphur to sulphur dioxide reaction. 12.3.5 In summarizing, the ffue-gas loss as determined in this Clause 1 2 , may be expressed as: Flue Gas Loss = (a b) c where: a = sensible heat loss (dry flue-gas loss) b = latent heat loss (hydrogen loss) c = loss due to incomplete combustion (per cent CO)

+ +

39

OIL BURNING STOVES AND WATER HEATERS

16 15 14

13

12 11 10

9

a 7 6

S 4

3 2 1

a

0

1

2

3

4

5

6

7

8

9

PERCENT

10 0 2

11

12

13

14

I5

16

17

18

19

20'

21

MINUS $ PERCENT CO

NOTES:1. The sohd-line is for typicat Grade No. I stove oils, having a Gravity of a9firoximately 40 Degrees APT, far which t b ultimate per cent COz is approximately 15.3. 2 . The broken bine is for typical Grade No. 2 furnace oils, having a Gravity of approx-

imuiely 34 Degrees A P I , for which the ultimute per cent COZ is approximately 15.6. 3. To check, proceed as shown by dotted lines and arrows to the approprhk line, using the percentage values of CU2 and 0 2 and CO &terminad by test.

FIGURE 4 COMBUSTION CHECK CHART FOR GRADES 1 AND 2 FUEL OILS

40

CSA STANDARD B140.3

I5 16

17 18

19 20 21

22

23 24

25 26 27 28 29

30 31

32 33 34

35

36

37 33

9

39 40 41 8

42

400

500 600 706 800 990 FLUE-GAS TEMPERATURE MINUS ROOM TEMPERATURE IN DEGREES F

1000

NOTE:The &e-gas Joss on the ckart is for Grade No. 1 (Stove) oils. When Grade No. 2 (Furnace) oils are used, the flue-gas loss m y be obtained from CSA Sfandard B140.4.

FIGURE 5 PER CENT FLUE-GAS LOSS CHART FOR GRADE 1 FUEL OILS

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