2026 Monthly & Annual Utility Breakdown (3,500 Sq Ft in Montana)
Recommended Equipment Size:5.0 Tons (60,000 BTU)
Montana Residential Electricity / Gas Rate:13.5¢/kWh | $1.15/therm
Cold-Climate Heat Pump (15-Yr Lifespan):$1,505/yr ($125/mo)
Winter Heating vs. Summer Cooling Split (Heat Pump):$1,463/yr Heat | $42/yr AC
Natural Gas Furnace + Central AC (18-Yr Lifespan):$1,484/yr ($124/mo)
Electric Baseboard + Window AC (25-Yr Lifespan):$4,612/yr ($384/mo)
15-Year Heat Pump Lifespan Net Savings vs. Baseboard:+$43,005
💰 Up to $2,600 Rebate
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Compare 3 Local Montana HVAC Installer Quotes
Verify 2026 Federal 25C Tax Credit & NorthWestern Energy rebate eligibility and compare turnkey contractor pricing for a 5.0-Ton system (3,500 sq ft).
🛠️ Save 45% on Install
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DIY Pre-Charged Ductless Mini-Split Kits
Avoid $3,500+ in ductwork labor. Calculate exact multi-zone mini-split BTU capacity for your 3,500 sq ft Montana home.
☀️ Offset 13.5¢/kWh
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Montana Solar + Heat Pump Net-Zero Calculator
See how an 80%–100% rooftop solar net-metering array eliminates annual electric heating and cooling bills in Montana.