First, let me make the world a better place by saying this: DO NOT BUY AN ATTIC FAN. ESPECIALLY A SOLAR POWERED ONE. Fans that suck air out of the attic through the roof (not whole house fans) are COMPLETELY THE WRONG THING to fix the problem you're having. No matter what the problem is, it's definitely the wrong thing to use. Now, enjoy learning why!
First Wednesday of every month, I demonstrate all the advanced testing used for last month's awesome clients. I actually re-worked this entire webinar the night before because of a job that day that knocked my freaking socks off- solving a chimney backdrafting problem with some super sucky solar attic fans! A few other jobs are sprinkled in, to add spice.