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A contractor quoting a furnace installation in Howard County has to size for a climate that does throw hard winters at the equipment, but severe weather alone is not what drives the local sizing calculus. 85 severe weather events were recorded in Howard County, Iowa between 2015 and 2024. At roughly that rate, severe events are real but not relentless, which means a system that is failing has almost certainly been worn down by age or a poor original install rather than by weather load. A contractor sizing a new furnace here will ask about the existing ductwork and the envelope of the house before they pick equipment, because those variables matter more than the storm count.
Ductwork laid in for one generation of heating equipment rarely lines up with what a modern furnace needs from it. Half the homes in Howard County, Iowa were built in 1960 or earlier (2020-2024 ACS 5-year). A contractor installing a new furnace here has to assess what those older runs can carry before pricing the job, because a system that delivers the right output in the wrong duct configuration will underperform from day one. The electrical side follows the same logic. What is already in the house decides as much of the install as the unit itself does.
What Gets Installed With a New Furnace
The furnace itself sits in a mechanical room, basement, or utility closet and is the heart of the system. A contractor mounts the unit, connects it to the gas supply, and sets up the flue or venting pipe that carries combustion gases out of the house. The air handler, if separate, sits nearby and moves conditioned air into the duct system.
The thermostat goes on an interior wall, usually in a central living area, and gives the household a single point of control over the whole system. A contractor also installs or ties into the condensate drain line and any secondary safety switches that protect the unit from water damage.
The drawing shows a representative layout, and a licensed contractor determines what applies to your specific home.
Get matched in Howard CountyHoward County, Iowa, by the numbers
85 severe weather events were recorded in Howard County, Iowa 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 Howard County, Iowa were built in 1960 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHoward County, Iowa holds 4,320 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 77.4% of the occupied homes in Howard County, Iowa (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesFurnace Installation Rules That Apply in Howard County, Iowa5 codes, standards & laws
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.
Licensing and Legal Requirements in Howard County, Iowa
Iowa requires a state licence to install or repair HVAC, refrigeration, mechanical or plumbing systems, and to operate as a contractor, with exceptions listed in section 105.11.
Severe Weather Events in Howard County
Howard County's weather puts real demand on heating equipment: hard winters stress furnaces that were sized and installed without that load in mind. What a furnace faces here shapes which equipment fits, how it should be configured, and how long it holds up.
85 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.