Heat Pump Payback in Morristown, NJ
Will a heat pump pay off in Morristown, NJ?
In Morristown, a heat pump would cost more to run each year than what you have now. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $5,500. Unfortunately the electric bill outweighs the gas bill it replaces by about $139 a year here, so the extra spend stays unrecovered. That's Morristown's own climate and rates talking, not a hedge or a caveat.
Checking a different city
This runs the same numbers for 3206 US cities, not just Morristown. Look one up here.
How cold Morristown actually gets
4806 heating degree days pile up here every year, so Morristown has a real but manageable winter; the cooling side runs to 942 cooling degree days, where summers add a moderate cooling load. Sizing runs off the design temperature, not the average day: 12.2°F here (coldest 2024 reading 6.8°F), which works out to a seasonal COP of 2.99 for the cold-climate class of unit this climate calls for. Morristown 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 Morristown Municipal Airport, the closest NOAA station, 3.2 miles out.
What it actually costs to run, year to year
A 2000-square-foot house here would pull roughly 4,070 heating kilowatt-hours annually on top of cooling, totalling about $1,134 a year on electricity. Morristown's gas rate of $14.21 per Mcf, applied to the 50 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $995 a year, against 23.28¢ per kWh for electricity. Because the heat pump costs more to run here, the gap only widens with time: $7,585 behind after 15 years compared with replacing the furnace and AC like-for-like.
What would change Morristown's answer
For the verdict in Morristown to flip, electricity would need to drop to about 19.5¢/kWh from 23.28¢, or gas climb past $16.99 per Mcf from $14.21. A utility offering a lower heat pump rate can change this. Until then, no quote price makes a heat pump pay back against gas in Morristown; the case for one here rests on comfort, cooling, or replacing electric heat instead.
If your home heats with electric baseboard instead of gas
Not every home in Morristown has gas service. Swap the comparison to resistance heat instead of gas, and Morristown's answer improves. Switching saves about $1,983 a year here, a heat pump moving heat rather than generating it needs far less electricity than resistance coils, so the extra $10,000 spent up front comes back in about 5 years.
How Morristown compares nationally
Morristown lands at position 942 out of 3206 cities on heating severity (coldest is 1), and 1862 out of 3206 by population size (biggest is 1). That's the coldest third of the dataset, where climate does most of the work behind this figure.
Deciding what's next in Morristown, NJ
Morristown, New Jersey is home to about 20,732 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 Morristown, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
More on how this number was built
Nothing above is a black box: the methodology guide shows the full arithmetic behind Morristown's 2.99 seasonal COP and payback figure. Morristown's 12.2°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.