Heat Pump Payback in Poulsbo, WA
Should Poulsbo switch to a heat pump?
The payback math works in Poulsbo on paper, past the equipment's own working life. $5,500 is what Poulsbo would pay extra to go electric rather than replace the furnace and AC with the same again. That premium is recovered through $331 of lower running costs every year, landing the payback clock at roughly 16.6 years. That's a technicality, not a recommendation, for anyone actually living in Poulsbo.
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How cold Poulsbo actually gets
4841 heating degree days pile up here every year, so Poulsbo has a real but manageable winter; the cooling side runs to 174 cooling degree days, where summers rarely ask much of an air conditioner. Sizing runs off the design temperature, not the average day: 16°F here (coldest 2024 reading 12°F), which works out to a seasonal COP of 3.08 for the cold-climate class of unit this climate calls for. Poulsbo 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 Bremerton National Airport, 18.8 miles from Poulsbo, the closest one on record.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 3,980 kWh a year to keep it warm, plus cooling, for a combined electric bill near $589 a year. That compares with roughly 50 Mcf a year of gas at Poulsbo's $17.62 per-Mcf rate, about $921 a year with the old AC included, against a local electricity rate of 14.27¢/kWh. Buying outright rather than at replacement time stretches payback to longer than the 15-year equipment life. Over 15 years, compared with a like-for-like replacement, the heat pump leaves you $529 behind.
How sensitive Poulsbo's result is to prices
Gas would only overtake the heat pump in Poulsbo if electricity rose past 22.8¢/kWh from 14.27¢, or gas fell under $11.05 per Mcf from $17.62. A useful quote test for Poulsbo: the heat pump is worth it within a decade if it costs less than $3,310 more than replacing the furnace and AC, and within 7 years if the gap is under $2,317.
Electric resistance heat in Poulsbo, compared
Gas isn't universal in Poulsbo, many houses run on electric heat already. Against electric-resistance heat, baseboard or an electric furnace, both 100% efficient but still just resistance, the case for switching gets stronger here. About $1,192 a year comes back this way, enough that the 8.4-year payback clears the $10,000 premium comfortably within the equipment's life.
Where Poulsbo ranks in this dataset
Poulsbo lands at position 902 out of 3206 cities on heating severity (coldest is 1), and 2719 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.
Next step if you live in Poulsbo
Poulsbo, Washington is home to about 12,562 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 Poulsbo, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
More on how this number was built
The methodology guide walks through exactly how Poulsbo's 3.08 seasonal COP and the rest of this page's numbers get built. Poulsbo's 16°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.