How do you control air quality?

Marta Lizza · February 5, 2013

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    Michael Cohn Air to air heat exchangers blow out the nasty air but not the heat or cool you paid to make. By splitting the exhaust duct into long, thin "fingers" that touch other long thin intake fingers carrying fresh air, the system transfers the indoor air temperature to preheat or precool the incoming air without actually mixing the two air streams. If you clasp your hands together (as if praying for the fumes...See more

    March 21, 2013
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