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// Earth tubes (earthtubes, or earth-air tubes) are underground tubes that use geothermal energy to cool or heat temper the air for your home. It works like cheap air conditioning because you can build it yourself for several hundred dollars and it is FREE to run (no electricity needed). Being completely passive, this is a […] 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 […] Do you complain about how high your heating and cooling bills are? If so, then your house is probably designed all wrong. House design blunders can force you to spend hundreds upon hundreds of dollars every single season of every single year in utilities… money that could otherwise be going into your pocket. Why is […] |
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