Uncategorized Blower Door Test May 14, 2012 history Leave a comment We had an energy assessment today from Magrann Associates. Very thorough, if a bit depressing in terms of the sheer amount of work that needs to be done. Blower door (picture blow) gave a number of 6,105 cfm. Uh-oh. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Related