HeatPumpPayback

Is a heat pump worth it in Ellensburg?

Ellensburg 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. Ellensburg's residents would see roughly $297 a year back in running costs, putting the payback around 11.8 years. Whether that's worth it in Ellensburg depends on how many years you expect to own the place.

Why Ellensburg's climate drives this number

Degree days tell the story here: Ellensburg racks up 5751 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 746 cooling degree days on the cooling side. -5.1°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of -9°F on file. Worked through the model, that's a seasonal COP of 2.58 on the cold-climate unit fit for this climate. Ellensburg 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. Source: NOAA station BOWERS FIELD AIRPORT, 2.5 miles from Ellensburg — the closest one on record.

What it actually costs to run, year to year

A 2000-square-foot house here would pull roughly 5,644 heating kilowatt-hours annually on top of cooling, totalling about $896 a year on electricity. The gas furnace it replaces burns roughly 60 Mcf a year at 17.62 per Mcf here, for a running cost near $1,193 a year (electricity here runs 14.27¢/kWh). Looked at as a full purchase rather than an incremental one, payback here is roughly 45.4 years, leaving the 15-year total $957 ahead.

The other scenario: no gas furnace to begin with

Plenty of homes in Ellensburg 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 $1,320 a year, which recovers the extra $8,000 spent going electric in roughly 6.1 years.

Ellensburg against the rest of the country

Ellensburg lands at position 299 out of 3206 cities on heating severity (coldest is 1), and 1847 out of 3206 by population size (biggest is 1). That's the coldest third of the dataset, where climate does most of the work behind this figure.

Deciding what's next in Ellensburg, WA

About 20,996 people live in Ellensburg, 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.

Line up a few local HVAC quotes before you decide.

Where Ellensburg's figure comes from

The methodology guide walks through exactly how Ellensburg's 2.58 seasonal COP and the rest of this page's numbers get built. Ellensburg's -5.1°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.