How does current forced air gas heating technology work?
The thermostat senses that the room temperature is cooler than the set temperature and signals the furnace to come on. Inside the furnace a small exhaust vent blower comes on to force the unused vent gas out the flue. This in turn allows gas and air into the heat exchanger to be ignited by a glow bar. When the gas begins to burn it heats up the metal heat exchanger. The furnace blower then comes on and blows the air warmed by the heat exchanger into the room through your duct system and registers. Ultimately, you and your family feel warmer.
