The MRCOOL MGA80SE100C5C VersaPro 100K BTU 80% AFUE Gas Furnace is a reliable heating system designed to deliver consistent indoor comfort in residential and light commercial applications. It operates by burning natural gas to produce heat, which is then distributed through compatible forced-air HVAC systems using ductwork and an air handler or blower. https://www.partshnc.com/mrcool-versapro-r-454b-80-afue-gas-furnace-mga80se100c5c