Area 3: Flue Gas Exiting Convective Zone: This the area of the furnace between the combustion zone and the SNCR (if present). Changes in the flue gas after combustion due to in-furnace combustion NOx ...

The inducer motor is a fairly recent piece of equipment on gas furnaces, so it isn’t surprising many homeowners don’t know why it’s there or what it does. Because it’s integrated into the ...