Hey random, I'm trying to visualize your scenerio but I am having difficulty. Could you provide some more information please? I'm not even quite sure what question you are asking. If all you want is to use the exhaust from the A/C unit to heat your bathroom, then sure it's possible; personally I would not have the actual A/C unit in the grow area at all..I would have it in the bathroom and vent the cooled air into the closet.