When we had our home re-roofed, the contractor removed the power vent that was mounted to one of the roof vents in the attic. The wires were cut and the power vent removed.
I'm leaning toward installing a gable-mounted power vent now because the trapped attic air and lack of adequate insulation in the attic causes the heat pump to run full time when the temp gets over 90 degrees and can't seem to keep up (southern Oregon).

My question: Does it matter what gable (southern or northern exposure) I install the power vent on and should I install an intake vent on one gable end and the fan on the other to help air flow? There are intake vents in the front and back of the house at the top of the siding( freeze block area).
The wiring for the old vent is closer to the northern (shady side) gable end and on the opposite end of the bedrooms.
I would appreciate some guidance.

 

The only thing I can think of here is put it in a gable so it blowes with the way the wind blower most of the time is best.

You need the fan but it will also pay to get more insulation in there for winter too.

ED

 

You might also consider a whole house fan located in the hallway ceiling.
Open the windows on the north side of the house, the fan draws in cool air, pressurizing the attic and forcing the heated air out. it also helps to be pulling air off of a green zone. then you can enjoy the cool breezes off of the umpqua(sp) valley.

 

Dont think you want a whole house fan here. If you run it for just one day it will take you 5 to 6 days to try and get the moisture back out of the home so you can feel the AC again.

ED

 

I would try to have the intake on the north or east side and the exhaust on the west or south side.
Of course the best solution would be to pull the air from the soffits all the way around the hosue if possible.