Heat Pump Payback in Bozeman, MT
Should Bozeman switch to a heat pump?
In Bozeman, a heat pump would cost more to run each year than what you have now. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $5,500. The heat pump would cost about $400 more a year to run than the furnace it replaces, a premium with no payback. There's no spin on that: Bozeman's numbers say wait.
Compare against another city
Bozeman is one of 3206 cities covered here, each run through the same model. Search another below.
Why Bozeman's climate drives this number
Degree days tell the story here: Bozeman racks up 7555 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 348 cooling degree days on the cooling side. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is -32.1°F, and the coldest daily reading in the 2024 station record was -45°F. That puts the seasonal coefficient of performance at 2.3 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Bozeman sits firmly in cold-climate territory, so that's the class of unit priced here. Climate figures trace to the nearest NOAA station, Gallatin Field Airport, 8.9 miles from Bozeman.
What it actually costs to run, year to year
Electricity use for heating alone comes out to about 8,318 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $1,168 a year. That compares with roughly 79 Mcf a year of gas at Bozeman's $8.99 per-Mcf rate, about $769 a year with the old AC included, against a local electricity rate of 13.56¢/kWh. With running costs higher every year, there is no payback at any purchase price; over 15 years, against a like-for-like replacement, a household here would end $11,494 behind.
The break-even point in Bozeman
The heat pump would become the cheaper option in Bozeman if electricity fell to 8.7¢/kWh (from 13.56¢) or gas rose above $14.07 per Mcf (from $8.99). At today's prices a cheaper quote cannot rescue the gas comparison in Bozeman, since there is no yearly saving to recover it from.
The other scenario: no gas furnace to begin with
Plenty of homes in Bozeman heat with electricity alone, no gas line involved. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The saving here runs about $1,487 a year, which recovers the extra $10,000 spent going electric in roughly 6.7 years.
How Bozeman compares nationally
Among 3206 cities, Bozeman's winter puts it at rank 24 for severity, while its size puts it at rank 708 for population, 1 in both cases being the extreme. That's the coldest third of the dataset, where climate does most of the work behind this figure.
Next step if you live in Bozeman
About 57,894 people live in Bozeman, Montana, and every number on this page is what a contractor would actually work from when quoting a system here, the point isn't to replace that quote, it's to tell you whether to bother asking for one. Here, there's no cost penalty to waiting until your current furnace or AC actually needs replacing.
Ask a local HVAC contractor for a quote before committing either way.
Where Bozeman's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Bozeman's 2.3 seasonal COP and payback figure. Bozeman's -32.1°F design temperature is below the 25°F line, which is why a cold-climate unit is the right call here, see what that changes in the cold-climate unit guide.