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I feel like an idiot, can't pass the CA residential mechanical.
I need help on how to do the combustion air calcs under the 2007 CMC.
I don't have to use the calcs because we don't have HVAC units installed here on a regular basis. Any and all help is appreciated. PM me if you don't want to post here.
Sue, living in the land of the woodstove & direct vent wall heater.............
I need help on how to do the combustion air calcs under the 2007 CMC.

I don't have to use the calcs because we don't have HVAC units installed here on a regular basis. Any and all help is appreciated. PM me if you don't want to post here.
Sue, living in the land of the woodstove & direct vent wall heater.............