MRCOOL MGA80SE040A3C 40K BTU 80% AFUE Gas Furnace is a reliable heating unit designed to deliver consistent indoor warmth for residential split-system HVAC applications. It works by burning natural gas to generate heat, which is transferred through the heat exchanger while the blower circulates warm air evenly through the ductwork. Designed for use with compatible MRCOOL air condition... https://www.partshnc.com/mrcool-versapro-r-454b-80-afue-gas-furnace-mga80se040a3c