Heat Pump Payback in Opelousas, LA
Should Opelousas switch to a heat pump?
This one's marginal in Opelousas: it only clears if you stay long enough. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,000. Opelousas's residents would see roughly $253 a year back in running costs, putting the payback around 11.8 years. It's a genuine toss-up here, Opelousas's numbers don't point clearly either way.
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How cold Opelousas actually gets
Degree days tell the story here: Opelousas racks up 1430 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 2657 cooling degree days on the cooling side. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 25.7°F, and the coldest daily reading in the 2024 station record was 14.7°F. That puts the seasonal coefficient of performance at 2.97 for the recommended standard unit. Opelousas's winters don't get cold enough to need the cold-climate premium, a standard unit holds up fine. These numbers come from St Landry Parish Airport Ahar, the closest NOAA station, 2.5 miles out.
The yearly running costs in Opelousas
Electricity use for heating alone comes out to about 1,219 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $471 a year. That compares with roughly 15 Mcf a year of gas at Opelousas's $17.38 per-Mcf rate, about $724 a year with the old AC included, against a local electricity rate of 13.52¢/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 $799 ahead.
What would change Opelousas's answer
Gas would only overtake the heat pump in Opelousas if electricity rose past 629.1¢/kWh from 13.52¢, or gas fell under $0.37 per Mcf from $17.38. A useful quote test for Opelousas: the heat pump is worth it within a decade if it costs less than $2,530 more than replacing the furnace and AC, and within 7 years if the gap is under $1,771.
Electric resistance heat in Opelousas, compared
Plenty of homes in Opelousas heat with electricity alone, no gas line involved. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The gap still doesn't close: the $7,500 incremental cost outlasts the 15-year equipment life here even against resistance heat.
Where Opelousas ranks in this dataset
Ranked against the other 3206 cities covered, Opelousas comes in at 2715 for heating severity, 1 would be the coldest place in the dataset, and 2371 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 Opelousas
Opelousas, Louisiana is home to about 15,176 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 Opelousas, nothing is lost by holding off until the current equipment genuinely fails.
Line up a few local HVAC quotes before you decide.
Where Opelousas's figure comes from
The methodology guide walks through exactly how Opelousas's 2.97 seasonal COP and the rest of this page's numbers get built. Homes in Opelousas without gas service should read the electric-resistance comparison instead, the numbers there differ from the gas case above.