You have a typical problem in a vertical dwelling. Try running the fan "on"
for continuous circulation, make sure to keep the filter clean. Close a few
vents in the lower floor/s in cooling season and the opposite in heating
season... otherwise, you are probably in need of additional return ductwork
on the upper floors.
I was on an install a couple years back. We were working in a rather
hot attic, and they had a powered roof vent installed as part of the
job. We got it wired in, musta made twenty degrees difference in the
Christopher A. Young
You can\'t shout down a troll.
Energy studies show that if the home has a properly insulated attic the
installation of a power vent will not decrease air conditioning energy
cost enough to pay for the operation of the power vent fan.
That is true in new construction where the attic is properly ventilated
by continuous ridge and soffit vents. It is NOT the case on many
buildings of older design.
We've done some solar-powered vent in INDIANA that seem to work well,
provided that attic is also properly insulated and leaks between the
conditioned spaces and the attic are minimized.
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