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How do you operate the whole house fan in order to save heat loss

Recently bought this one floor house with a whole house fan. Fan is in hallway by bedrooms,but in the attached garage there are two large openings in the ceiling....air flows up when garage door is opened and into the rest of the attic, especially during the winter months. Last winter I covered insulation on top of the fan mechanisms in the attic but these openings in the garage were still there. Is a lot of my heat being lost because of this situation? Previous owners didn't explain much about the process and I have no manuals. How do I solve my problem to make it more energy efficient.

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Make covers for garage opening with hinges open in summer close in winter .

Posted on Oct 09, 2009

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In any event, 1/3 horsepower electric motor is not that hard to find. The real key is getting the right rotation, so the blades will pull the air up and out instead of in and down. Remounting a new motor coupled with the right pulley size for a fan belt ,can control the speed of the fan. Rarely are hold house fans direct drive. Which may be the case with yours, I don't know.

As far as a new 1/3 Hp motor is concerned, I would recommend Grainger Industrial Supply
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