IECC Zone 6B (Billings); 7 (mountains)

Mini Splits & Heat Pumps in Montana

Montana is cold, dry, and windy. Billings and Bozeman winters see sustained sub-zero stretches; mountain valleys are colder still. Summers are warm but short with low humidity. Heating dominates the annual load, but summer cooling is becoming more common with warmer trends.

Climate Zone
6B (Billings); 7 (mountains)
Cooling Degree Days
300–700
Heating Degree Days
7,000–9,500
Dominant Load
heating

What Works in Montana

Hyper-heat is the right call for Montana, paired with a backup heat source (wood, propane) for the deep-winter tail. NorthWestern Energy offers heat pump rebates and participates in Montana's rollout of HEEHRA.

MrCool Hyper HeatMrCool Universal (paired with backup)

Montana Rebates & Incentives

Montana HEEHRA through Department of Environmental Quality. NorthWestern Energy runs direct rebate programs.

Major Utilities
  • NorthWestern Energy
  • Flathead Electric Cooperative
  • Montana-Dakota Utilities
  • Yellowstone Valley Electric

Montana Licensing & Install Rules

Montana requires a construction contractor registration for HVAC installs. Homeowner DIY on primary residence is permitted with mechanical permits.

Top Montana Metro Areas

We ship to every ZIP in Montana. Largest metros where we deliver most often:

Billings, MT
Missoula, MT
Great Falls, MT
Bozeman, MT
Butte, MT

Recommended for Montana Homes

Heat pumps and mini splits in our catalog that match Climate Zone 6B (Billings); 7 (mountains) conditions.

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