Mini Split Installation in Baraboo, WI
A new system here will heat from October through May and cool from June through August every year. Tell us about the house, and a licensed contractor who covers Sauk County will get in touch.
Tell us about the job
It takes about a minute.
Baraboo asks a mini-split to run almost year round
Winter nights here average 13°F, and homes need heat from October through May, eight months a year. Summer afternoons average 80°F, with cooling needed June through August. That's 11 months where the system is doing something, not sitting idle.
A mini-split installed here has to hold up on those 13°F nights, and it has to be sized right so it isn't struggling in the cold or short-cycling in the summer heat. Any new unit also has to meet the federal minimum for a split-system heat pump, 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. That's the floor, not a feature, so it's worth knowing what you're actually getting above it.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 13°F
- the average winter night it heats against
- 80°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Wisconsin requires contractors to register with the state.
That registration puts the business on file with the state. Nobody tests the contractor's skill first and no license is issued. Wisconsin also keeps counties and cities from layering on their own HVAC license, so this registration is the only state record that exists anywhere in the state.
For a mini-split, the registration does not cover whether the work itself was done right. That comes from the local building office instead. In most cities and counties, installing a mini-split needs a permit and an inspection once the work is finished, and that inspection is what checks the wiring and refrigerant lines were done correctly.
Sources: Wisconsin Legislative Reference Bureau · Wisconsin Department of Safety and Professional Services
- Is a mini split worth it?
- For most homes here, yes. A mini split heats and cools without ductwork, and cold-climate models keep working at low temperatures, which matters since winter nights here average 13°F from December through February. Ask a contractor about a cold-climate model by name, since not every mini split is rated for that kind of cold.
- How many rooms can a mini split cover?
- One outdoor unit can run more than one indoor head, so it depends on the system. Each indoor head heats and cools only the room or open area it's placed in, so a house with several rooms needing separate control usually means several heads on one outdoor unit. A contractor will look at the layout of the house and size the system to the rooms that need it.
- Can a mini split heat a whole house?
- It can, if enough indoor heads are placed to reach every room, but a single head only heats the space it's in. Homes here need heat from October through May, so whatever system is chosen has to keep up on the coldest nights, not just the mild ones. A contractor can work out whether a whole-house mini split setup makes sense for a given floor plan, or whether it works better paired with existing heat.