HVAC Installation in Boulder, MT
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Ten months of heat, one hard winter to plan for
Jefferson County asks a lot more of a heating system than a cooling one. Homes here need heat from September through June, ten months of the year, while summer afternoons stay mild at 74°F. A new system has to be sized for those long heating months first.
Winter nights average 15°F from December through February, cold enough that the furnace or heat pump you choose needs to hold up to real strain, not just mild chill. Almost half the homes here heat with gas, and whatever you install has to meet the federal minimum efficiency rating for the equipment type. With 16 winter storms and 10 damaging wind events recorded over the past ten years, and 18% of Montana households losing power for at least a day in 2024, it is worth asking your contractor how your new system holds up when the power goes out.
- 10 months
- September through June, your system heats
- 15°F
- the average winter night it heats against
- 74°F
- the average summer afternoon it cools against
Montana requires HVAC contractors to hold a state license.
The license is held by the contractor, not issued for each job, so it covers the business doing the work rather than this one install. Work under $2,500 does not need a licensed contractor, but a full heating and cooling system replacement runs well past that, so the contractor doing this job needs to hold the state license.
Most cities and counties in Montana also require a permit for a furnace, air conditioner or heat pump replacement, with an inspection once the work is done. That permit and inspection come from the local building office, separate from the state license itself.
Source: Montana Legislature
- When should I replace my HVAC system?
- Replace it when repairs cost more than they're worth or the furnace can't keep the house warm on the coldest nights, when lows here average 15°F. Homes in Boulder need heat running from September through June, close to 10 months of the year, so a furnace that's struggling has almost no time off to hide the problem. If yours is already having trouble in mild weather, plan the replacement before a hard freeze forces the issue.
- Should I replace my furnace and air conditioner at the same time?
- If both are near the end of their life, yes, it's worth doing together. A furnace and air conditioner installed at different times often don't match well, since the blower and coil are sized to work as a pair. Replacing them together also means one visit from the contractor and one inspection instead of two. If one unit is still young, a contractor can tell you whether it makes sense to pair them now or wait.
- What happens during an HVAC installation?
- A contractor removes the old furnace and air conditioner, sets the new equipment, and connects it to the existing ducts, gas line, electrical, and refrigerant lines. They'll also check that the ductwork is sized right for the new system, since a bigger or more efficient unit can push more air than old ducts were built to handle. Replacing a furnace or air conditioner needs a permit from the local building office and an inspection once the work is done, so the contractor should handle that paperwork as part of the job. Before they leave, expect them to test the system, checking that it heats properly and that the gas and electrical connections are sound.