Very Cool (Or Is That Warm?)

Very Cool (Or Is That Warm?) This won’t do me much good in Las Vegas, but it’s still pretty neat: a home that stays warm without a heater ... and mold. But new passive houses use an ingenious central ventilation system. The warm air going out passes side by side with clean, cold air coming in, exchanging heat with 90 percent efficiency. “ [more...]

Date: 2008-12-27 23:06:55

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