Green Building, Green Technologies
The summer attic; it’s hot. Really hot. 140 degrees Fahrenheit, sometimes hotter. Boilers attached to your radiators make water cooler than this for heating. So getting that heat out of your attic should prevent some of it from heating your house and should decrease your air conditioning bills, right?
It depends. As with all real situations, there are circumstances under which an attic fan works and others under which it increases rather than decreases your bills. So, before you spend $500 wiring up a fan, let’s review.