Forum Discussion
prichardson
Aug 11, 2015Explorer
If the old unit is a Duo-Therm or Coleman it will be the standard 14 X 14. It is easy enough to measure once you drop the interior plenum. If it is not a ducted system the swap is very easy. I would get a new mounting gasket rather than use the one that may be packed with the 2005 unit. If it is a ducted system be sure to get a thermostat that is compatable with the new unit.
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