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Manual
Construction Alternatives and Sample Passive Solar Straw Bale House
6.2h
Design for 90% Energy Efficiency to Save Money on Heating and Cooling
5.6h
Do It Yourself Homemade Air Conditioner - Non-Electric Sustainable Design - Geothermal Energy - Passive Heating and Cooling
4.3h
Do It Yourself Solar Cooker Science Fair Ideas for Kids, Cheap and Easy Projects for Adults, Campers, the Survivalist, Frugal Living, and Just About Anyone
1.4h
Thrifty Ways to Barter and Find Cheap Used & Free Materials on a Frugal Budget
11.7h