HeatPumpPayback

Heat pump vs. gas furnace in Washougal, WA

Washougal sits right on the fence — how long you'll own the house decides this one. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,500 after a $2,000 federal tax credit. That premium is recovered through $305 of lower running costs every year, landing the payback clock at roughly 11.5 years. Whether that's worth it in Washougal depends on how many years you expect to own the place.

Why Washougal's climate drives this number

Degree days tell the story here: Washougal racks up 3827 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 635 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 19°F here (record low 14°F), which works out to a seasonal COP of 3.16 for the cold-climate class of unit this climate calls for. Washougal needs the cold-climate class of unit: past a 25°F design temperature a standard heat pump falls back on resistance backup often enough to eat the savings. These numbers come from PORTLAND-TROUTDALE AIRPORT, the closest NOAA station, 3.7 miles out.

Washougal's running-cost comparison, in dollars

Electricity use for heating alone comes out to about 3,067 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $515 a year. That compares with roughly 40 Mcf a year of gas at Washougal's 17.62 per-Mcf rate — about $820 a year — against a local electricity rate of 14.27¢/kWh. Looked at as a full purchase rather than an incremental one, payback here is roughly 44.3 years, leaving the 15-year total $1,073 ahead.

Electric resistance heat in Washougal, compared

Gas isn't universal in Washougal — many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Washougal's answer improves. About $985 a year comes back this way, enough that the 8.1-year payback clears the $8,000 premium comfortably within the equipment's life.

How Washougal compares nationally

Washougal lands at position 1633 out of 3206 cities on heating severity (coldest is 1), and 2103 out of 3206 by population size (biggest is 1). That's the middle third for winter severity among the cities covered here.

Next step for 17,944 people in Washougal

About 17,944 people live in Washougal, Washington, 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.

More on how this number was built

Every constant behind this page — the 3.16 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. Washougal's 19°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.