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This book shows solutions how you can produce part of your energy for home heating and domestic hot water by yourself fo
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This book shows solutions to optimize your house energetically inexpensive and to improve at the same time the living co
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Do you desire to have a solar water heater in your home because you have heard that it will help reduce your utility bil
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20 Easy DIY Holiday Craft TIPS & TECHNIQUES for Crafting with FloraCraft® Foam
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The book, is a construction manual for a hybrid heating, consisting of a powerful air-water or air-air heat pump with sl
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