Heat pump vs. gas furnace in Aberdeen, MD
Aberdeen technically pencils out, but only past the point the equipment would need replacing anyway. 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. Aberdeen's residents would see roughly $118 a year back in running costs, putting the payback around 29.7 years. Aberdeen's own numbers say this pencils out only in theory, not in practice.
Why Aberdeen's climate drives this number
Aberdeen has a real but manageable winter — 3918 heating degree days a year against a 65°F base — and summers are hot enough that cooling matters as much as heating, at 1410 cooling degree days. The 99% winter design temperature here — the cold snap equipment must be sized for, not the seasonal average — is 17.6°F, against a record low of 15.8°F. That puts the seasonal coefficient of performance at 3.12 for the recommended cold-climate unit. Aberdeen 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 MARTIN STATE AIRPORT, 18.1 miles from Aberdeen — the closest one on record.
The month-to-month numbers for Aberdeen
Modelled on a typical 2000-square-foot house, the heat pump draws about 3,180 kWh a year to keep it warm, plus cooling, for a combined electric bill near $927 a year. Aberdeen's gas rate of 16.14 per Mcf, applied to the 41 Mcf a year the furnace burns, puts its running cost near $1,045 a year, against 21.16¢ per kWh for electricity. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 114.4 years, for a 15-year net position $1,730 behind.
Electric resistance heat in Aberdeen, compared
Plenty of homes in Aberdeen 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. Switching saves about $1,559 a year here — a heat pump moving heat rather than generating it needs far less electricity than resistance coils — so the extra $8,000 spent up front comes back in about 5.1 years.
How Aberdeen compares nationally
Aberdeen lands at position 1576 out of 3206 cities on heating severity (coldest is 1), and 2056 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 Aberdeen
About 18,451 people live in Aberdeen, Maryland, 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.
Reading further on this page's numbers
Every constant behind this page — the 3.12 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. Aberdeen's 17.6°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.