AC Installation in Cut Bank, MT
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Cut Bank doesn't ask much of an air conditioner
Summer afternoons here average 72°F. That's mild enough that a new system spends most of its life barely working. Even a basic install has to meet 13.4 SEER2 at minimum, which is more cooling power than this county usually calls for.
What this area does see is hail and wind. Ten years of records show 20 hail events, one as large as 1.75 inches, and 200 damaging wind events in that span. The outdoor unit sits outside through all of that, so where it's placed and how it's protected matters more here than how much heat it can handle.
- 72°F
- the average summer afternoon it cools against
- 20 hail events
- in ten years, and hail bends the fins on outdoor coils
- 13.4 SEER2
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
Going above the federal minimum saves little here, about $10 a year.
Estimates for a typical Glacier County home, from EIA household energy data, Montana fuel prices and NOAA climate normals. Your home will differ.
Montana requires HVAC contractors to hold a state license.
That license is held by the contractor's business, not issued fresh for your job. Montana sets one exception worth knowing. Work under $2,500 does not need a licensed contractor. An air conditioner installation almost always runs well past that, so the contractor doing your job should be licensed.
In most cities and counties here, installing a new air conditioner also needs a permit from the local building office, with an inspection once the work is done. That inspection checks the installation itself, separate from whatever the state license covers.
Source: Montana Legislature
- What size air conditioner does my house need?
- It depends on your house, not just its square footage. A contractor works this out from how much insulation you have, how many windows you have and which way they face, and your ceiling height. Putting in a unit that's too big cools the air fast but shuts off before it pulls the humidity down, so the house feels clammy. With summer afternoons here averaging only 72°F, an oversized unit is an even easier mistake to make, since it will short cycle in mild weather. A load calculation done on your actual house is the only way to get the size right.
- Should I replace the whole system or just the outdoor unit?
- In most cases, if the outdoor unit is failing, the whole system gets replaced at the same time. The outdoor unit and the indoor coil are matched to work together, and pairing a new outdoor unit with an old indoor coil usually means the system never reaches the efficiency either part is rated for. Refrigerant type is another issue. Older systems may use refrigerant that new outdoor units aren't built to run on. A contractor can look at what you have and tell you whether the indoor coil is a reasonable match or whether it should go too.
- Do HVAC contractors in Cut Bank need a state license to work on my home?
- Yes. Montana requires HVAC contractors to hold a state license, issued through the Department of Labor and Industry. There's an exception for small jobs, but an AC installation is well beyond that scope, so the contractor doing the work should be licensed. Most cities and counties also require a permit for this kind of work, with an inspection once it's done, so check with your local building office as well.