Open 24/7 for emergencies
A gas furnace is a short chain of parts: inducer, igniter, gas valve, burners, flame sensor, heat exchanger and blower. If any one of them fails its check, the furnace stops, and a tech works down that chain.
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Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceOften same-day, and we will tell you honestly when we can get there.
Our own HVAC installersA dedicated heating and cooling team, separate from our plumbers
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An open gas furnace sits in a basement mechanical room, with labels on screen pointing out two of the big parts: the heat exchanger and the blower motor.
The heat exchanger is the metal chamber the burner flames fire into. It gets hot and the house air passes over the outside of it, so flame and exhaust never mix with the air you breathe. The blower motor spins the fan that pushes that warmed air into your ducts.
Two techs in black hoodies work on the furnace and on the supply plenum, the sheet metal box on top where heated air leaves for the rest of the house.
Ask a tech and you'll usually hear the heat exchanger, because it's the wall between fire and the air you breathe. The blower matters most for comfort, and the safety switches matter most for keeping it from running when something's wrong. A good inspection looks at all three, not just whether warm air comes out.
Want it done at your place? See Furnaces and Heating at SwiftPro or call (703) 997-9757.
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SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
Virginia Class A contractor license #2705192276