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Cheap Air Conditioning is what Earthtubes (earth-air tubes / earth tubes) are all about! You can build your own earth tubes for passive cooling/natural cooling for about $150 per tube. They can completely replace your air conditioner(s) on your home, provided you follow some important steps and make them correctly. Earth Tubes We […] Is there a difference between an “oven” and a “cooker” for solar cooking? Solar “oven” Well, although these terms are actually most often used interchangeably, it is generally called an “oven” if you put the food inside the insulated walls of the box, similar to a regular kitchen oven. Solar “cooker” Also, it is generally […] 
I have built and sold and installed solar water distillers for years. It is a wonderful feeling to build something that can take contaminated or polluted water and turn it into absolutely pure and drinkable, fresh water! So what is a solar water distiller? First of all you want to understand how a solar water […] |
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