I would like to get a pool heater, but my equipment is in the basement (about 2700 sq ft basement). The basement is also used as a gym, and so I am worried that a natural gas heater would make it too hot down there. Heat pump that vents outside would actually be nice because it might incidentally cool my basement and first floor a little as well I have seen that this Through wall vent is available in Europe. Do we have anything like that in the U.S.?