Heat pump vs. gas furnace in Wilsonville, OR
In Wilsonville, the math is close enough that it comes down to how long you plan to stay. $3,500 is what Wilsonville 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. Wilsonville's residents would see roughly $256 a year back in running costs, putting the payback around 13.7 years. Whether that's worth it in Wilsonville depends on how many years you expect to own the place.
The climate behind Wilsonville's payback figure
Degree days tell the story here: Wilsonville racks up 4286 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 518 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 18°F, against a record low of 16°F. That puts the seasonal coefficient of performance at 3.13 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Wilsonville sits firmly in cold-climate territory, so that's the class of unit priced here. Climate figures trace to the nearest NOAA station, AURORA STATE AIRPORT, 4.3 miles from Wilsonville.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 3,467 kWh a year to keep it warm, plus cooling, for a combined electric bill near $592 a year. The gas furnace it replaces burns roughly 45 Mcf a year at 16.71 per Mcf here, for a running cost near $848 a year (electricity here runs 15.14¢/kWh). Buy it outright, not incrementally, and payback stretches to 52.8 years; over 15 years the net position sits $336 ahead.
Electric resistance heat in Wilsonville, compared
Gas isn't universal in Wilsonville — many houses run on electric heat already. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. About $1,153 a year comes back this way, enough that the 6.9-year payback clears the $8,000 premium comfortably within the equipment's life.
How Wilsonville compares nationally
Among 3206 cities, Wilsonville's winter puts it at rank 1337 for severity, while its size puts it at rank 1434 for population — 1 in both cases being the extreme. That's the middle third for winter severity among the cities covered here.
Deciding what's next in Wilsonville, OR
About 27,895 people live in Wilsonville, 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.
Line up a few local HVAC quotes before you decide.
Where Wilsonville's figure comes from
Every constant behind this page — the 3.13 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. Wilsonville's 18°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.