True, however, in my case every stinking gap/hole/opening in the house has been sealed and verified with a blower door test, which was done last fall and passed with flying colors. In fact, the guy that did it said my house was one of the tightest he had ever tested.
Attic ventilation exceeds spec as well, with about 10% more than specified in the way of soffit and roof vents. Your point is well taken, however, as a lot of my research turned up a rather heated debate in the HVAC community over the use of (powered) attic vents. Most of those arguments revolved around the house envelope not being properly sealed. This was my motivation for doing it, and I believe I saw results from it almost immediately. Last year in the period of July through September we had nearly the same number of heating degree days as the year before, and during the same period last year my electric bill (AC) dropped on average about 20% during that time. I would attribute the drop to sealing the house and the installation of a Nest thermostat earlier in the year. Dan On May 4, 2014, at 2:23 PM, Mitch Haley wrote: > Dan Penoff wrote: >> Approaching 90F today after two days of heavy and much needed rain - the >> same system that was hammering folks to our north last week. >> Just came down off the roof after installing a solar attic fan. Piece of >> cake - took me all of about 30 minutes. I spent more time lugging tools and >> the ladder around. >> Now it's time to see how much cooler the attic stays.... > > The thing with attic fans is that if you don't have excellent attic > ventilation, the fan pulls a vacuum in the attic and cools the attic by > pulling conditioned air from the house (which is replaced in the house by > humid ambient air). > > Mitch. > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > All posts are the result of individual contributors and as such, those > individuals are responsible for the content of the post. The list owner has > no control over the content of the messages of each contributor. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
