Tell us about the job
Takes about a minute. No obligation.
Sizing a heat pump for this county is not a calculation a contractor runs once and forgets. Homes in St. Francois County, MO run heat about seven months a year, from October through April. As outdoor temperatures drop through that stretch, a heat pump's capacity falls, and a unit that looked adequate on paper at mild temperatures can fall short in January when the house needs it most. The contractor has to establish the backup heat threshold before quoting, because an undersized system that leans on resistance heat to cover the gap costs the homeowner more to run than a correctly sized installation would have.
Ductwork laid in for a furnace and central air carries different requirements than a heat pump system, and the electrical service in older stock was sized for loads that do not match what a heat pump draws. Half the homes in St. Francois County, Missouri were built in 1983 or earlier (2020-2024 ACS 5-year). A contractor scoping an installation here opens the panel and walks the duct runs before the equipment conversation starts, because what the house already has determines whether the new system can go in as quoted or whether additional work changes the scope.
What a Heat Pump Installation Covers
The outdoor unit sits on a pad beside the house and holds the compressor and the coil that exchanges heat with the outside air. Inside, an air handler is mounted in a utility space, basement, or closet and moves conditioned air through the home. These two units are the core of what a contractor puts in place.
A refrigerant line set runs between the outdoor unit and the air handler, carrying the working fluid that links the two. A thermostat mounts on an interior wall and gives the homeowner control over the system. A condensate drain line runs from the air handler to a suitable discharge point to carry away moisture pulled from the indoor air.
The drawing shows a typical layout, and a licensed contractor determines what applies to this particular house.
Find a contractor in St. Francois CountySt. Francois County, by the numbers
83 severe weather events were recorded in St. Francois County, Missouri 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 St. Francois County, Missouri were built in 1983 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSt. Francois County, Missouri holds 28,945 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 68.2% of the occupied homes in St. Francois County, Missouri (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSevere Weather Events in St. Francois County
Heat pump performance is tied directly to what the local climate demands of it. How hard equipment works, and how often, is shaped by the weather patterns recorded right here in St. Francois County.
83 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.