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The burner and heat exchanger in a furnace here cycle hard through a long stretch of cold months. Homes in Adams County, CO run heat about eight months a year, from October through May. That load falls on the same components, season after season, and a contractor opening a furnace for a repair fault will check the heat exchanger for fatigue cracks and the ignition system for wear before anything else on the unit. A cracked heat exchanger is the fault that accumulates quietly under this kind of sustained runtime, and it is also the one that changes the repair scope most sharply when found.
Furnace rooms in Adams County's older half carry equipment that has been swapped out, updated, or pieced together more than once over the life of the building. Half the homes in Adams County, Colorado were built in 1991 or earlier (2020-2024 ACS 5-year). When a contractor opens the unit, what they find in the heat exchanger or burner assembly decides whether the job is a standard repair or a parts search. Furnaces running in housing this mature often take components that distributors have discontinued, which turns a straightforward fix into a sourcing problem before any labor begins.
The Parts of a Furnace a Contractor Checks First
The furnace itself sits in a basement, utility closet, or garage and is the piece a contractor goes to first. Inside it, the heat exchanger is the part that does the heating work, and a crack or failure there is often what drives a repair call. The burners, which fire inside the heat exchanger, and the igniter, which lights them, are the other usual suspects.
The blower motor and its fan sit inside the furnace cabinet and push conditioned air out through the house. The flue pipe runs from the top or back of the unit to an exterior wall or chimney, carrying exhaust gases out. The thermostat on the wall is where a contractor starts when the complaint is the system not responding at all.
The drawing shows a typical furnace layout, and a licensed contractor determines which parts apply and what work is needed in your specific home.
Get matched in Adams CountyAdams County, by the numbers
292 severe weather events were recorded in Adams County, Colorado 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 Adams County, Colorado were built in 1991 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesAdams County, Colorado holds 195,793 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 68.6% of the occupied homes in Adams County, Colorado (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Covering Furnace Repair in Adams County, Colorado4 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 Adams County
Extreme weather puts real strain on furnace systems, cycling them harder and more often than moderate conditions require. How much stress a furnace accumulates over its life is a local question, shaped by what the weather in Adams County actually does year to year.
292 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.