AirQuest 70,000 BTU 80% AFUE Two Stage Multi-Positional Gas Furnace

With its variable speed blower motor and two stage burner, the AirQuest G80CTL0701716A can provide a consistently superior comfort to almost any application. QUICK FACTS 70,000 BTU, 80% AFUE natural gas furnace Generally suitable for up to a medium-sized house in ideal applications Communicating variable speed blower with a two stage burner Multi-positional design—can be installed in the upflow, downflow, or horizontal orientations California Low NOx compliant Field-convertible to propane with an optional LP kit On board self-diagnostics 70,000 BTU, 80% AFUE The AirQuest G80CTL0701716A has an input of 70,000 BTU. With an efficiency of 80%, this means that the furnace has an output of 56,000 BTU. The 80% AFUE also means that for the gas going into the furnace, 80% of it is used to heat your home while the remaining 20% is lost out the flue piping and lost to normal furnace operations. All 80% furnaces require metal flue venting, and if you need it to be plastic/PVC venting a furnace with an efficiency of 90...