I have a ridge vent and vents under the eaves. I geuss my main thought was spring and fall. Even with mild temps- upper 70's to lower 80's, the attic heats up so much that the ceiling is warm, and I need to run AC just to cool down, so I'm running AC from May thru September. I figure cooling down the attic and house with the fan in milder weather may save me a total of say, 2-3 months of AC over the course of a year.
In the heat of July and August, when temps stay in the 90's, we also have high humidity, so even a breeze isn't too comforting. I probably wouldn't get much use from the fan then.
Sounds like those of you with the whole house fans really enjoyed them.
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For me there is only the traveling on paths that have heart, on any path that may have heart. There I travel, and the only worthwhile challenge is to traverse its full length. And there I travel, looking, looking, ...breathlessly.
-Carlos Castaneda
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