Heat Pumps in Great Falls: What Homeowners Should Know
Great Falls has roughly 8,555 heating degree days a year, a very cold climate that determines how hard a heat pump works each winter. A typical 2,000 sq ft home here needs about a 5-ton system, installed for around $17,000 — or about $16,500 after the local rebate of up to $500.
Swapping electric-resistance heat for a heat pump in Great Falls cuts heating costs from about $3,068 to $1,395 a year — a saving of roughly $1,674 annually at the local electricity rate of $0.102/kWh, and an estimated $15,556 over 15 years. Savings are even larger if you currently heat with propane or oil. Note: the federal 25C heat-pump tax credit expired at the end of 2025, but Montana rebates and the income-qualified HEEHRA program (up to $8,000) can still bring the cost down. The local utility is NorthWestern Energy.
Cost & Savings Breakdown
2,000 sq ft home switching from electric resistance in Great Falls
15-Year Savings Projection
Available Rebates
Choosing a Heat Pump Installer in Great Falls
- 1.Get at least 3 quotes. Prices in Montana vary widely — comparing bids on the same ~5-ton system is the fastest way to avoid overpaying.
- 2.Insist on a Manual J load calculation. Proper sizing for Great Falls's 8,555 heating degree days is the single biggest factor in comfort and efficiency.
- 3.Choose a cold-climate (ccASHP) unit. Look for a strong HSPF2 rating and a 10-year compressor warranty.
- 4.Ask about rebate paperwork. Good installers handle Montana rebate and HEEHRA applications for you.
Common Questions
How much does a heat pump cost in Great Falls?
A whole-home heat pump in Great Falls, Montana costs approximately $17,000 installed, or about $16,500 after the state/utility rebate of up to $500. The federal 25C tax credit expired December 31, 2025.
How much can a heat pump save in Great Falls?
A typical Great Falls home switching from electric-resistance heat saves about $1,674 per year — roughly $15,556 over 15 years — with a payback of about 9.9 years. Savings are even larger versus propane or heating oil.
What size heat pump do I need in Great Falls?
A typical 2,000 sq ft home in Great Falls needs roughly a 5-ton heat pump, given the local climate of 8,555 heating degree days. A Manual J load calculation from your installer will confirm the exact size.
Do heat pumps work in Great Falls's climate?
Yes. With 8,555 heating degree days, Great Falls is a very cold climate. A cold-climate heat pump is recommended here — modern units maintain efficient heating well below 0°F.
Compare Heat Pump Costs Near Great Falls
Planning other home-energy upgrades?
Solar, batteries, heat pumps and EV chargers all work together. Run the numbers on the rest of your electrification plan: