Colonial Heights, VA: the heat pump payback math
In Colonial Heights, the extra upfront cost technically comes back, just not before the equipment wears out. $3,500 is what Colonial Heights 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. Lower bills claw that back: about $225 saved annually, for a payback of roughly 15.5 years. Colonial Heights's own numbers say this pencils out only in theory, not in practice.
The climate behind Colonial Heights's payback figure
Degree days tell the story here: Colonial Heights racks up 3525 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1301 cooling degree days on the cooling side. 14°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 13.5°F on file. Worked through the model, that's a seasonal COP of 3.04 on the cold-climate unit fit for this climate. Colonial Heights 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. These numbers come from DINWIDDIE COUNTY AIRPORT, the closest NOAA station, 7.9 miles out.
The month-to-month numbers for Colonial Heights
A 2000-square-foot house here would pull roughly 2,936 heating kilowatt-hours annually on top of cooling, totalling about $671 a year on electricity. Colonial Heights's gas rate of 16.79 per Mcf, applied to the 37 Mcf a year the furnace burns, puts its running cost near $896 a year, against 16.58¢ per kWh for electricity. Looked at as a full purchase rather than an incremental one, payback here is roughly 59.9 years, leaving the 15-year total $122 behind.
Electric resistance heat in Colonial Heights, compared
Gas isn't universal in Colonial Heights — 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. Switching saves about $1,089 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 7.3 years.
Colonial Heights against the rest of the country
Among 3206 cities, Colonial Heights's winter puts it at rank 1765 for severity, while its size puts it at rank 2036 for population — 1 in both cases being the extreme. That's the middle third for winter severity among the cities covered here.
Deciding what's next in Colonial Heights, VA
About 18,674 people live in Colonial Heights, Virginia, 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.
Ask a local HVAC contractor for a quote before committing either way.
Reading further on this page's numbers
The methodology guide walks through exactly how Colonial Heights's 3.04 seasonal COP and the rest of this page's numbers get built. Colonial Heights's 14°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.