Is a heat pump worth it in Idaho?

At Idaho prices a typical heat pump heats a house for about $1,090 a year, against $603 for a 95% gas furnace; it wins clearly against propane, oil and electric resistance heat, and it also replaces the air conditioner.

Do I need a cold-climate heat pump in Idaho?

In parts of the state, yes. Boise has winters where an ENERGY STAR cold-climate model is the safer choice. Check your city's guide below.

Cold winters

Best heat pumps for Idaho

In Idaho a gas furnace still heats for a little less, but a heat pump also replaces the air conditioner.

A typical heat pump costs about $1,090 a year to heat a house, against $603 for a 95% gas furnace, at 12.7¢/kWh and $0.74/therm. Parts of the state need a cold-climate model.

Cheapest to run in Idaho

Best 3-ton central heat pump

TOSHIBA CARRIER MCY-MUB0368HS2P-UL

3 ton central · cold-climate certified

SEER2: 29.7
HSPF2: 12.2
Per year: $919

Lowest yearly running cost in the state's climate.

Full specs and running cost

Best 12,000 BTU mini-split

MDV MOX430-12HFN1-MZ60W

12,000 BTU mini-split · MSOP series · cold-climate certified

SEER2: 27.5
HSPF2: 14.5
Per year: $267

Lowest yearly running cost in the state's climate.

Full specs and running cost

City guides

Each guide uses that city's own climate data. Typical yearly cost of a 3-ton heat pump, heating plus cooling:

Boise · cold winters · also Meridian, Nampa$1,291/yr

More for Idaho

Heat pump vs. gas, propane and oil$1,090 vs. $603 gas

Natural gas furnace, 95% AFUE$603/yr
Natural gas furnace, 80% AFUE$716/yr
Heat pump (typical, 9.0 HSPF2)$1,090/yr
Propane furnace, 95% AFUE$2,240/yr
Electric baseboard or furnace$2,874/yr
Heating oil, 85% AFUE$3,928/yr

Top 8: 3-ton central heat pumpsfrom $919/yr

TOSHIBA CARRIER MCY-MUB0368HS2P-UL12.2 HSPF2 · $919/yr
LG KUSXA361A10.5 HSPF2 · $1,080/yr
Trane 5TWV0X36A110.5 HSPF2 · $1,097/yr
Lennox SL22KLV-036-230A10.5 HSPF2 · $1,101/yr
LG KUSXB361A10.3 HSPF2 · $1,108/yr
Lennox EL21KLV-036-230A10.4 HSPF2 · $1,114/yr
GE NS21H36MA5-**A10.4 HSPF2 · $1,114/yr
SAMYOU VUH36-VA6BA(O)10.2 HSPF2 · $1,131/yr

All 3-ton heat pumps

Top 8: 12,000 BTU mini-splitsfrom $267/yr

MDV MOX430-12HFN1-MZ60W14.5 HSPF2 · $267/yr
Goodman MSH123G26MCAA14.5 HSPF2 · $267/yr
Fujitsu AOUH12KTAP113.7 HSPF2 · $275/yr
Fujitsu AOUG12LZAS112.9 HSPF2 · $292/yr
Fujitsu AOUH12KZAH112.7 HSPF2 · $295/yr
Carrier 37MPRAQ12AA312.7 HSPF2 · $296/yr
Fujitsu AOUG12LZAH112.7 HSPF2 · $296/yr
Mainline ML12HP230CALH-O12.7 HSPF2 · $296/yr

All 12,000 BTU mini-splits

Climate in the state's citiesNOAA normals

Boise0.9 nights ≤ 0°F · 55 days ≥ 90°F

Questions2

Is a heat pump worth it in Idaho?: At Idaho prices a typical heat pump heats a house for about $1,090 a year, against $603 for a 95% gas furnace; it wins clearly against propane, oil and electric resistance heat, and it also replaces the air conditioner.
Do I need a cold-climate heat pump in Idaho?: In parts of the state, yes. Boise has winters where an ENERGY STAR cold-climate model is the safer choice. Check your city's guide below.

Running cost calculator

Pre-filled with Idaho prices. Pick your city and what you heat with today.

Heat pump $840/yrCosts more by $135/yrSee details ↓

1. Where you live

StateCityElectricity ¢ per kWh

Adjust heating and cooling hours

Filled in from your city's climate. Change them if you run the system much more or less than usual.

Cooling hours full-load hours per yearHeating hours full-load hours per year

2. The heat pump pick a model or type its ratings

Find a model (fills in the ratings below)

SEER2 cooling efficiencyHSPF2 heating efficiencyCooling capacity BTU/hHeating capacity BTU/h

3. What it replaces

Current heatingFurnace efficiency (AFUE %)Gas price, $/thermCurrent coolingOld AC rating SEER2 (10 ≈ 15+ years old)

4. Price replace the example with your quote

Installed price, $Rebates and incentives, $ utility, state

Heat pump, per year: $840
Current system, per year: $705
Costs more per year: $135
Payback: No payback
Net after 10 years: -$10,351

Cooling $114Heating $726Electricity used: 6,633 kWhSaved vs. a minimum-efficiency heat pump: $191

Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.