Heat Pump Payback in Yakima, WA
Will a heat pump pay off in Yakima, WA?
In Yakima, the extra upfront cost technically comes back, just not before the equipment wears out. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. Yakima's residents would see roughly $328 a year back in running costs, putting the payback around 16.8 years. That's a technicality, not a recommendation, for anyone actually living in Yakima.
Checking a different city
This runs the same numbers for 3206 US cities, not just Yakima. Look one up here.
How cold Yakima actually gets
Degree days tell the story here: Yakima racks up 5434 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 915 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 0°F, and the coldest daily reading in the 2024 station record was -2°F. That puts the seasonal coefficient of performance at 2.7 for the recommended cold-climate unit. Yakima 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. Climate figures trace to the nearest NOAA station, Yakima Air Terminal/McAlsr Fi, 1.6 miles from Yakima.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 5,096 kWh a year to keep it warm, plus cooling, for a combined electric bill near $839 a year. Yakima's gas rate of $17.62 per Mcf, applied to the 57 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $1,166 a year, against 14.27¢ per kWh for electricity. Priced as a standalone purchase, with a working furnace ripped out early, payback would take longer than the 15-year equipment life. Measured against the like-for-like replacement instead, a household here ends 15 years $582 behind.
How sensitive Yakima's result is to prices
Gas would only overtake the heat pump in Yakima if electricity rose past 21.3¢/kWh from 14.27¢, or gas fell under $11.83 per Mcf from $17.62. A useful quote test for Yakima: the heat pump is worth it within a decade if it costs less than $3,280 more than replacing the furnace and AC, and within 7 years if the gap is under $2,296.
If your home heats with electric baseboard instead of gas
Plenty of homes in Yakima heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Yakima's answer improves. Switching saves about $1,294 a year here, a heat pump moving heat rather than generating it needs far less electricity than resistance coils, so the extra $10,000 spent up front comes back in about 7.7 years.
Where Yakima ranks in this dataset
Ranked against the other 3206 cities covered, Yakima comes in at 414 for heating severity, 1 would be the coldest place in the dataset, and 351 by population, where 1 is largest. That's the coldest third of the dataset, where climate does most of the work behind this figure.
Deciding what's next in Yakima, WA
Yakima, Washington is home to about 97,390 people, and the figures above are the same ones a local HVAC contractor uses to size and quote a system, this site doesn't guess where a real quote would land, it just tells you whether it's worth asking for one. In Yakima, nothing is lost by holding off until the current equipment genuinely fails.
Line up a few local HVAC quotes before you decide.
More on how this number was built
Every constant behind this page, the 2.7 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. At a 0°F design temperature, Yakima sits in cold-climate territory; the guide to that class of unit explains why.