Heat Pump Payback in Elizabethtown, KY
Should Elizabethtown switch to a heat pump?
The payback math works in Elizabethtown on paper, past the equipment's own working life. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. Lower bills claw that back: about $149 saved annually, for a payback of roughly 37 years. That's a technicality, not a recommendation, for anyone actually living in Elizabethtown.
Not the city you meant?
This runs the same numbers for 3206 US cities, not just Elizabethtown. Look one up here.
Elizabethtown's weather, in the numbers that matter
3742 heating degree days pile up here every year, so Elizabethtown has a real but manageable winter; the cooling side runs to 1192 cooling degree days, where summers are hot enough that cooling matters as much as heating. 5.5°F is the figure equipment gets sized against here, the 99th-percentile cold snap, not an average day, with a low of -3.3°F in the 2024 station record. Worked through the model, that's a seasonal COP of 2.83 on the cold-climate unit fit for this climate. A cold-climate unit is the right call in Elizabethtown, below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Source: NOAA station Addington Fld, 2.8 miles from Elizabethtown, the closest one on record.
Elizabethtown's running-cost comparison, in dollars
A 2000-square-foot house here would pull roughly 3,348 heating kilowatt-hours annually on top of cooling, totalling about $628 a year on electricity. That compares with roughly 39 Mcf a year of gas at Elizabethtown's $14.23 per-Mcf rate, about $777 a year with the old AC included, against a local electricity rate of 14.39¢/kWh. 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 $3,268 behind.
What would change Elizabethtown's answer
Gas would only overtake the heat pump in Elizabethtown if electricity rose past 19.7¢/kWh from 14.39¢, or gas fell under $10.41 per Mcf from $14.23. A useful quote test for Elizabethtown: the heat pump is worth it within a decade if it costs less than $1,490 more than replacing the furnace and AC, and within 7 years if the gap is under $1,043.
Electric resistance heat in Elizabethtown, compared
Not every home in Elizabethtown has gas service. Swap the comparison to resistance heat instead of gas, and Elizabethtown's answer improves. The saving here runs about $958 a year, which recovers the extra $10,000 spent going electric in roughly 10.4 years.
Where Elizabethtown ranks in this dataset
Elizabethtown lands at position 1654 out of 3206 cities on heating severity (coldest is 1), and 1189 out of 3206 by population size (biggest is 1). That's the middle third for winter severity among the cities covered here.
What to do with this number in Elizabethtown
Elizabethtown, Kentucky is home to about 34,565 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 Elizabethtown, nothing is lost by holding off until the current equipment genuinely fails.
Line up a few local HVAC quotes before you decide.
Where Elizabethtown's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Elizabethtown's 2.83 seasonal COP and payback figure. Elizabethtown's 5.5°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.