Heat Pump Payback in Essex Junction, VT
Should Essex Junction switch to a heat pump?
Essex Junction is a place where a heat pump genuinely costs more to operate than the alternative. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. The heat pump would cost about $99 more a year to run than the furnace it replaces, a premium with no payback. There's no spin on that: Essex Junction's numbers say wait.
Compare against another city
This runs the same numbers for 3206 US cities, not just Essex Junction. Look one up here.
The climate behind Essex Junction's payback figure
Essex Junction has a cold winter that leans hard on heating equipment, 5954 heating degree days a year against a 65°F base, and summers add a moderate cooling load, at 810 cooling degree days. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 3°F, and the coldest daily reading in the 2024 station record was -4°F. That puts the seasonal coefficient of performance at 2.77 for the recommended cold-climate unit. Essex Junction 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 Burlington International Airp, the closest NOAA station, 2.3 miles out.
Essex Junction's running-cost comparison, in dollars
Modelled on a typical 2000-square-foot house, the heat pump draws about 5,443 kWh a year to keep it warm, plus cooling, for a combined electric bill near $1,466 a year. Essex Junction's gas rate of $18.00 per Mcf, applied to the 62 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $1,367 a year, against 23.90¢ per kWh for electricity. With running costs higher every year, there is no payback at any purchase price; over 15 years, against a like-for-like replacement, a household here would end $6,982 behind.
What would change Essex Junction's answer
The heat pump would become the cheaper option in Essex Junction if electricity fell to 22.0¢/kWh (from 23.90¢) or gas rose above $19.59 per Mcf (from $18.00). At today's prices a cheaper quote cannot rescue the gas comparison in Essex Junction, since there is no yearly saving to recover it from.
If your home heats with electric baseboard instead of gas
Not every home in Essex Junction has gas service. Swap the comparison to resistance heat instead of gas, and Essex Junction's answer improves. The saving here runs about $2,388 a year, which recovers the extra $10,000 spent going electric in roughly 4.2 years.
Where Essex Junction ranks in this dataset
Ranked against the other 3206 cities covered, Essex Junction comes in at 257 for heating severity, 1 would be the coldest place in the dataset, and 3029 by population, where 1 is largest. That's the coldest third of the dataset, where climate does most of the work behind this figure.
Deciding what's next in Essex Junction, VT
About 10,787 people live in Essex Junction, Vermont, 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.
More on how this number was built
Every constant behind this page, the 2.77 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. At a 3°F design temperature, Essex Junction sits in cold-climate territory; the guide to that class of unit explains why.