Quote:
Originally Posted by cherylncliff
We had a home energy audit by SECO. The inspector said that attic fans can help lower the attic temperature but from a $ savings perspective, they are not worth the investment. That is, it does not save you much on your electric bill nor does it prolong the life of the roof.
|
A 1500 cfm fan cost about $150 a year to run. Based on $0.125 per kWh, forgot what our rate is, so that may be +-
I think the offset in AC costs should offset that, but beyond that the garage is now a improved living/work space.
If the fan was solar the payback is 3-4 years then free.
Quote:
|
His recommendation was to prop the access door to the attic open and leave the garage door open a few inches and let the natural thermal circulation do its job.
|
How does that work for keeping pests out, it don't.
.