Heat Pump Payback in Long Beach, MS
Should Long Beach switch to a heat pump?
Long Beach sits right on the fence, how long you'll own the house decides this one. $3,000 is what Long Beach would pay extra to go electric rather than replace the furnace and AC with the same again. That premium is recovered through $278 of lower running costs every year, landing the payback clock at roughly 10.8 years. It's a genuine toss-up here, Long Beach's numbers don't point clearly either way.
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How cold Long Beach actually gets
Long Beach barely has a winter to speak of, 1151 heating degree days a year against a 65°F base, and summers are severe enough that cooling can dominate the annual bill, at 3320 cooling degree days. Sizing runs off the design temperature, not the average day: 28°F here (coldest 2024 reading 19.9°F), which works out to a seasonal COP of 3.03 for the standard class of unit this climate calls for. Long Beach's winters don't get cold enough to need the cold-climate premium, a standard unit holds up fine. These numbers come from Gulfport-Biloxi International Airport, the closest NOAA station, 6.3 miles out.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 962 kWh a year to keep it warm, plus cooling, for a combined electric bill near $587 a year. That compares with roughly 12 Mcf a year of gas at Long Beach's $16.64 per-Mcf rate, about $865 a year with the old AC included, against a local electricity rate of 15.47¢/kWh. Priced as a standalone purchase, with a working furnace ripped out early, payback would take longer than the 15-year equipment life. Measured against the like-for-like replacement instead, a household here ends 15 years $1,176 ahead.
What would change Long Beach's answer
In Long Beach the cooling savings outweigh the extra electricity for heating, so no plausible change in the electricity rate would make the old furnace and AC cheaper to run. A useful quote test for Long Beach: the heat pump is worth it within a decade if it costs less than $2,780 more than replacing the furnace and AC, and within 7 years if the gap is under $1,946.
If your home heats with electric baseboard instead of gas
Gas isn't universal in Long Beach, many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Long Beach's answer improves. The saving here runs about $530 a year, which recovers the extra $7,500 spent going electric in roughly 14.2 years.
How Long Beach compares nationally
Ranked against the other 3206 cities covered, Long Beach comes in at 2833 for heating severity, 1 would be the coldest place in the dataset, and 2174 by population, where 1 is largest. That's the mildest third of cities covered, where utility rates carry more of the answer than climate does.
Next step if you live in Long Beach
Long Beach, Mississippi is home to about 17,217 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 Long Beach, nothing is lost by holding off until the current equipment genuinely fails.
Line up a few local HVAC quotes before you decide.
More on how this number was built
Nothing above is a black box: the methodology guide shows the full arithmetic behind Long Beach's 3.03 seasonal COP and payback figure. Homes in Long Beach without gas service should read the electric-resistance comparison instead, the numbers there differ from the gas case above.