Heat Pump Payback in Westbury, NY
Heat pump vs. gas furnace in Westbury, NY
Westbury 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. Unfortunately the electric bill outweighs the gas bill it replaces by about $103 a year here, so the extra spend stays unrecovered. That's Westbury'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 Westbury. Look one up here.
How cold Westbury actually gets
Degree days tell the story here: Westbury racks up 4308 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1024 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 17.1°F here (coldest 2024 reading 10.9°F), which works out to a seasonal COP of 3.11 for the cold-climate class of unit this climate calls for. Below the 25°F line where a standard machine starts leaning on resistance backup, Westbury sits firmly in cold-climate territory, so that's the class of unit priced here. These numbers come from Republic Airport, the closest NOAA station, 9.2 miles out.
What it actually costs to run, year to year
A 2000-square-foot house here would pull roughly 3,508 heating kilowatt-hours annually on top of cooling, totalling about $1,280 a year on electricity. That compares with roughly 45 Mcf a year of gas at Westbury's $17.58 per-Mcf rate, about $1,177 a year with the old AC included, against a local electricity rate of 29.22¢/kWh. Because the heat pump costs more to run here, the gap only widens with time: $7,052 behind after 15 years compared with replacing the furnace and AC like-for-like.
How sensitive Westbury's result is to prices
For the verdict in Westbury to flip, electricity would need to drop to about 25.8¢/kWh from 29.22¢, or gas climb past $19.89 per Mcf from $17.58. 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 Westbury; the case for one here rests on comfort, cooling, or replacing electric heat instead.
If your home heats with electric baseboard instead of gas
Gas isn't universal in Westbury, many houses run on electric heat already. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The saving here runs about $2,295 a year, which recovers the extra $10,000 spent going electric in roughly 4.4 years.
Where Westbury ranks in this dataset
Among 3206 cities, Westbury's winter puts it at rank 1322 for severity, while its size puts it at rank 2309 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 Westbury, NY
Westbury, New York is home to about 15,871 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 Westbury, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
Reading further on this page's numbers
Nothing above is a black box: the methodology guide shows the full arithmetic behind Westbury's 3.11 seasonal COP and payback figure. Westbury's 17.1°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.