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Old 07-17-2013, 04:00 AM   #13
Montana Fan
Join Date: Feb 2013
Location: Nashville
Posts: 118
M.O.C. #13210
We added the second air 13.5 and have been very happy with it. We did not choose the low profile as the 2 inches did not make that much of a difference to us. You DO have to make sure the Attic is sealed around the old fan opening using AC Thermal Tape, (Keystone used cut pieces of 1/4 " wood around our primary to seal it) Or the foil covered card board material(duct work) you can get at Home depot and cut to fit. Sealing the attic is critical to not sucking in the gasses from the tank vents on the roof. It does mention this lightly in the instructions, but I would tell you that you want to make sure you over achieve in the sealing of the attic. Other than that, you are good to go. Nice meeting you and your wife the other day at the KOA. Good luck.
Denfinger is offline   Reply With Quote