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Homes in Tompkins County, NY run heat about nine months a year, from September through May. A furnace running that kind of schedule puts its real stress on the burner, the ignition system, and the heat exchanger, because those are the parts that cycle every time the thermostat calls for heat. A contractor coming out for a repair here checks those components first. Cracks in the heat exchanger or a worn igniter are the likeliest findings, and they are also the repairs that matter most for safety.
Furnaces in houses this old were built around parts and components that manufacturers have long since revised or dropped from production. Half the homes in Tompkins County, New York were built in 1974 or earlier (2020-2024 ACS 5-year). When a contractor opens a unit to diagnose the fault, the question that shapes the bill is whether the part it needs is still made in a form that fits it, or whether the repair requires sourcing something that has become scarce. That answer lives inside the equipment, not on the label.
The Parts of a Furnace a Contractor Checks First
The furnace itself sits in the basement, utility room, or crawlspace and is where heat is produced. Inside it, the heat exchanger is the first thing a contractor looks at when the system blows cold or cycles oddly, and the burners are right beside it, so a fault in one often points to the other.
The blower motor pushes conditioned air out through the supply side of the duct system and draws return air back in. Near the furnace, the flue pipe carries combustion gases out of the house, and the gas valve controls fuel delivery to the burners. A contractor checks both when something in the heating sequence is breaking down.
The drawing shows a typical furnace layout, and a licensed contractor determines which components apply to your specific system and situation.
Get matched in Tompkins CountyTompkins County, by the numbers
113 severe weather events were recorded in Tompkins County, New York between 2015 and 2024.
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.Half the homes in Tompkins County, New York were built in 1974 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesTompkins County, New York holds 47,804 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 54.1% of the occupied homes in Tompkins County, New York (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Furnace Repair in Tompkins County, New York4 sourced rules and standards
What the repair visit looks like
Non-weatherized gas furnaces manufactured on or after November 19, 2015 must reach 80.0 percent AFUE.
Non-weatherized oil-fired furnaces manufactured on or after November 19, 2015 must reach 83.0 percent AFUE.
Mobile home gas furnaces manufactured on or after November 19, 2015 must reach 80.0 percent AFUE.
Non-weatherized gas furnaces manufactured on or after December 18, 2028 must reach 95.0 percent AFUE, up from the 80.0 percent minimum that applies to units manufactured before that date.
Severe Weather Events in Tompkins County
Extreme weather puts furnaces under stress: hard starts, extended run cycles, and the kind of sustained demand that surfaces problems in aging equipment. How much of that your furnace absorbs depends on where it sits, which is why local weather history belongs on a page about repair work in your area.
113 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.