Tell us about the job
Takes about a minute. No obligation.
A heat pump going into Dane County is being sized for a place where severe weather is part of the normal operating calendar, not an occasional interruption. 307 severe weather events were recorded in Dane County, Wisconsin between 2015 and 2024. At that rate, a contractor cannot treat system capacity as a catalog decision made in the abstract. Refrigerant circuit sizing, backup heat staging, and the mechanical choices made at installation are all answers to what this climate actually asks of a system. A unit sized for a gentler operating environment will be undersized here from its first season.
Ductwork laid down for a furnace and central air setup was not designed around what a heat pump moves or how it moves it. Half the homes in Dane County, Wisconsin were built in 1986 or earlier (2020-2024 ACS 5-year). A contractor pricing a heat pump installation here has to look at what the existing trunk lines and branch runs can carry before the new unit is ever ordered, because undersized or poorly routed ducts will limit the system's output regardless of what the equipment itself is rated for. The electrical service also gets checked, since the panel that handled the old system may need an upgrade to support what the heat pump draws.
What a Heat Pump Installation Covers
The outdoor unit is the piece most homeowners see first, mounted on a pad or wall bracket outside the house, and it holds the compressor and the coil that exchange heat with the outside air. Inside, an air handler sits in a utility space, basement, or closet and moves conditioned air through the home.
A refrigerant line set runs between the two units, connecting the outdoor and indoor sides of the system. A thermostat goes on an interior wall where it reads the home's temperature and tells the system when to run.
The drawing shows a typical layout, and a licensed contractor determines exactly what the installation covers in your house.
Get matched in Dane CountyDane County, by the numbers
307 severe weather events were recorded in Dane County, Wisconsin 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 Dane County, Wisconsin were built in 1986 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesDane County, Wisconsin holds 261,061 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 57.1% of the occupied homes in Dane County, Wisconsin (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHeat Pump Installation Rules for Dane County, Wisconsin2 codes, standards, and regulations
Licensing and Legal Requirements in Dane County, Wisconsin
A Wisconsin business that employs a certified HVAC qualifier is a certified HVAC business, and no city or county may require it to hold a local certification or licence on top of that.
Wisconsin requires a state HVAC contractor registration: no person or business may install or service heating, ventilating or air conditioning equipment, or offer to, without one.
Severe Weather in Dane County
Weather drives how hard heating and cooling equipment has to work, and in Dane County that workload is shaped by local conditions that vary year to year. A heat pump sized and installed for this climate performs differently than one specified somewhere else, which is why local weather history belongs alongside any conversation about HVAC installation.
307 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.