Mini Split Installation in Gillette, WY
A new system here will heat from September through June and cool from July through August every year. Tell us about the house, and a licensed contractor who covers Campbell County will get in touch.
Tell us about the job
It takes about a minute.
A mini-split in Gillette works ten months a year
Winter nights here average 13°F. A mini-split has to pull heat out of air that cold and move it inside, and that is most of its job, since heat is needed September through June. The two months of cooling, when afternoons reach 83°F, are the lighter stretch by comparison.
A new unit has to meet the federal minimum for split-system heat pumps. That is 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. The HSPF2 number matters more here than in most places, since your mini-split will lean on its heating side far longer than its cooling side.
- 10 months
- September through June, your system heats
- 2 months
- July through August, it cools
- 13°F
- the average winter night it heats against
- 83°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- Is a mini split worth it?
- For most homes here, yes, as a way to add heating and cooling to a space the main system does not reach well. A cold climate mini split keeps working at temperatures well below zero, which matters through winter nights here that average 13°F. It also handles summer afternoons here, which average 83°F, without any new ductwork. Whether it makes sense for your whole house depends on how the house is set up now, and a contractor can walk through that with you.
- How many rooms can a mini split cover?
- A single outdoor unit can run one indoor head or up to eight, depending on the system. Each indoor head heats and cools the room it's mounted in, so a multi-zone setup can cover several rooms at once, each with its own thermostat. How many heads make sense for your house comes down to the layout and how those rooms are used, which is something a contractor sizes on a visit.
- Can a mini split heat a whole house?
- It can, if enough zones are placed to reach every room, but that takes planning rather than one unit in the living room. Homes here need heat from September through June, so the system has to hold up on the coldest nights, not just take the edge off in fall. A cold climate mini split is built for that kind of winter, with nights here averaging 13°F. Getting the number of zones and their placement right for your house is a job for a contractor who can look at the layout.