Washington, PA: the heat pump payback math
In Washington, a heat pump would cost more to run each year than what you have now. $3,500 is what Washington 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. Running costs here land $51 a year HIGHER than the furnace it replaces, so that premium is never recovered. There's no spin on that: Washington's numbers say wait.
Why Washington's climate drives this number
Washington has a real but manageable winter — 4609 heating degree days a year against a 65°F base — and summers add a moderate cooling load, at 832 cooling degree days. Sizing runs off the design temperature, not the average day: 6.1°F here (record low 1°F), which works out to a seasonal COP of 2.85 for the cold-climate class of unit this climate calls for. A cold-climate unit is the right call in Washington — below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Climate figures trace to the nearest NOAA station, WASHINGTON COUNTY AIRPORT, 3.4 miles from Washington.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 4,095 kWh a year to keep it warm, plus cooling, for a combined electric bill near $997 a year. Washington's gas rate of 15.04 per Mcf, applied to the 48 Mcf a year the furnace burns, puts its running cost near $946 a year, against 20.75¢ per kWh for electricity. Buy it outright, not incrementally, and payback stretches to beyond the 15-year equipment life; over 15 years the net position sits $4,268 behind.
If your home heats with electric baseboard instead of gas
Plenty of homes in Washington heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Washington's answer improves. The saving here runs about $1,648 a year, which recovers the extra $8,000 spent going electric in roughly 4.9 years.
Washington against the rest of the country
Among 3206 cities, Washington's winter puts it at rank 1094 for severity, while its size puts it at rank 2608 for population — 1 in both cases being the extreme. That's the middle third for winter severity among the cities covered here.
Next step for 13,334 people in Washington
About 13,334 people live in Washington, Pennsylvania, 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
Nothing above is a black box: the methodology guide shows the full arithmetic behind Washington's 2.85 seasonal COP and payback figure. Washington's 6.1°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.