Ontario, OR: the heat pump payback math
This one's marginal in Ontario: it only clears if you stay long enough. $3,500 is what Ontario would pay extra to go electric rather than replace the furnace and AC with the same again, once the $2,000 federal credit is applied. That premium is recovered through $302 of lower running costs every year, landing the payback clock at roughly 11.6 years. Whether that's worth it in Ontario depends on how many years you expect to own the place.
The climate behind Ontario's payback figure
Degree days tell the story here: Ontario racks up 4808 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1305 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 10.9°F, against a record low of -8°F. That puts the seasonal coefficient of performance at 2.96 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Ontario sits firmly in cold-climate territory, so that's the class of unit priced here. Source: NOAA station ONTARIO MUNICIPAL AIRPORT, 1.8 miles from Ontario — the closest one on record.
What it actually costs to run, year to year
Electricity use for heating alone comes out to about 4,113 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $791 a year. That compares with roughly 50 Mcf a year of gas at Ontario's 16.71 per-Mcf rate — about $1,093 a year — against a local electricity rate of 15.14¢/kWh. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 44.8 years, for a 15-year net position $1,024 ahead.
Electric resistance heat in Ontario, compared
Plenty of homes in Ontario heat with electricity alone, no gas line involved. Against electric-resistance heat — baseboard or an electric furnace, both 100% efficient but still just resistance — the case for switching gets stronger here. The saving here runs about $1,308 a year, which recovers the extra $8,000 spent going electric in roughly 6.1 years.
Ontario against the rest of the country
Among 3206 cities, Ontario's winter puts it at rank 939 for severity, while its size puts it at rank 2811 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.
What to do with this number in Ontario
About 11,957 people live in Ontario, Oregon, 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.
Get quotes from local HVAC contractors before deciding.
Reading further on this page's numbers
The methodology guide walks through exactly how Ontario's 2.96 seasonal COP and the rest of this page's numbers get built. At a 10.9°F design temperature, Ontario sits in cold-climate territory; the guide to that class of unit explains why.