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Sizing a furnace for this county starts with how hard the burner and heat exchanger are actually asked to work. Homes in Stevens County, KS run heat about seven months a year, from October through April. A unit that is undersized for the load cycles more often to keep up, and those extra ignition events add up on the igniter, the heat exchanger, and the blower motor. A contractor doing a load calculation here has to account for a system that gets very little idle time to spare, which is why duct sizing and equipment capacity are not generic decisions on this job.
Ductwork laid out for a furnace that no longer exists sets the real terms of an installation here. Half the homes in Stevens County, Kansas were built in 1974 or earlier (2020-2024 ACS 5-year). A contractor sizing a new furnace has to assess whether the existing supply and return runs can move the volume of air the new unit will push, because ducts designed around the output of an earlier generation of equipment often cannot. The electrical service is a separate check. What the house already has behind the walls decides whether installation is straightforward or whether duct modifications come first.
What Gets Installed With a New Furnace
The furnace itself sits in the basement, utility room, or closet and is the core unit a contractor places during installation. Attached to it is the flue or vent pipe, which runs from the unit to an exterior wall or through the roof to carry combustion gases out of the house.
The air handler components built into the furnace cabinet include the blower and the heat exchanger, both of which are set in place as part of the same installation. A new thermostat goes on an interior wall and serves as the control point that tells the furnace when to run.
The drawing shows a typical layout, and a licensed contractor determines exactly what applies to your home and its existing setup.
Get matched in Stevens CountyStevens County, by the numbers
102 severe weather events were recorded in Stevens County, Kansas 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 Stevens County, Kansas were built in 1974 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesStevens County, Kansas holds 2,265 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 74.5% of the occupied homes in Stevens County, Kansas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Covering Furnace Installation in Stevens County, Kansas4 sourced rules and standards
What the installation actually 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 Stevens County
Kansas weather puts real load on heating equipment, and Stevens County conditions are part of what a furnace here has to handle over its lifetime. What the county has recorded year by year shapes how contractors size and install systems built to last in this climate.
102 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.