The New Minneapolis Blower Door gets a remake - larger window. Utah Energy Audits have an upgrade

We converted the standard Minneapolis Blower Door with the tiny porthole window to a "mondo" size window. Now when we do the ever demanding infrared energy audits, but now we get to illuminate the room! No longer are we stuck with the old red background. We even get to see the UPS man come to the door. What a difference doing energy audits no with the larger opening.