Mini Split Installation in Devils Lake, ND
A new system here will heat from September through May and cool from July through August every year. Tell us about the house, and a licensed contractor who covers Ramsey County will get in touch.
Tell us about the job
It takes about a minute.
Devils Lake asks a mini-split to run almost year round
Winter nights here average 0°F from December through February. A mini-split has to pull heat out of air that cold, night after night, from September through May. Then it switches over for July and August, cooling afternoons that average 77°F. Between the two, the system is heating or cooling 11 months of the year.
Any mini-split installed new has to meet the federal minimum of 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. With a winter this long and this cold, the heating side carries most of the load here, so that number matters more than the cooling one. North Dakota also saw 7% of households lose power for at least 24 hours in 2024, and this area has a record of winter storms and damaging wind. Where the outdoor unit is mounted and how well it is secured matters as much as what it is rated for.
- 9 months
- September through May, your system heats
- 2 months
- July through August, it cools
- 0°F
- the average winter night it heats against
- 77°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
North Dakota requires HVAC contractors to hold a state license.
The state's license is tied to the contractor, not to each job. Work under $4,000 falls outside that requirement, so a small job can legally be done without a licensed contractor.
A mini-split installation usually runs above that amount, so the contractor doing yours should hold the state license. Beyond that, most local building offices require a permit for this kind of installation and an inspection once the work is done, which is where the wiring and refrigerant connections get checked by someone outside the contractor's own crew.
Sources: North Dakota Legislative Branch · North Dakota Secretary of State
- Is a mini split worth it?
- For most homes it comes down to what you're heating and how many rooms need it. A mini split heats and cools without ducts, so it works well for an addition, a garage, or a house that doesn't have ductwork to begin with. Winter nights here average 0°F, so whatever unit goes in has to be rated to keep up with that kind of cold. A contractor can size the system to your rooms and tell you what it will run.
- How many rooms can a mini split cover?
- A single outdoor unit can run one indoor head or several, depending on the system. Each indoor head handles one room or one open area, and the outdoor unit's capacity gets split between however many heads are connected. A contractor sizes the system based on the square footage and layout of the rooms you want covered.
- Can a mini split heat a whole house?
- It can, if it's sized and placed for that. This means enough indoor heads in the right rooms, and an outdoor unit rated to keep up with winter nights that average 0°F here. Homes here need heat from September through May, nine months a year, so the system has to be built for that whole stretch, not just the coldest week. A contractor can walk the house and tell you how many zones it takes to cover it.