Will a heat pump pay off in Lafayette, LA?

In Lafayette, a heat pump pays for itself within a reasonable window. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $1,000 after a $2,000 federal tax credit. That premium is recovered through $276 of lower running costs every year, landing the payback clock at roughly 3.6 years. The window here is reasonable, and it's specific to what Lafayette actually pays for power and gas.

How cold Lafayette actually gets

Lafayette barely has a winter to speak of — 1014 heating degree days a year against a 65°F base — and summers are severe enough that cooling can dominate the annual bill, at 3442 cooling degree days. Sizing runs off the design temperature, not the average day: 28.9°F here (record low 18°F), which works out to a seasonal COP of 3.06 for the standard class of unit this climate calls for. Lafayette's winters don't get cold enough to need the cold-climate premium — a standard unit holds up fine. Climate figures trace to the nearest NOAA station, LAFAYETTE REGIONAL AIRPORT, 2.4 miles from Lafayette.

What it actually costs to run, year to year

Modelled on a typical 2000-square-foot house, the heat pump draws about 839 kWh a year to keep it warm, plus cooling, for a combined electric bill near $510 a year. That compares with roughly 11 Mcf a year of gas at Lafayette's 17.38 per-Mcf rate — about $787 a year — against a local electricity rate of 13.52¢/kWh. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 39.8 years, for a 15-year net position $3,146 ahead.

If your home heats with electric baseboard instead of gas

Gas isn't universal in Lafayette — 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 $440 a year, which recovers the extra $5,500 spent going electric in roughly 12.5 years.

How Lafayette compares nationally

Among 3206 cities, Lafayette's winter puts it at rank 2898 for severity, while its size puts it at rank 242 for population — 1 in both cases being the extreme. That's the mildest third of cities covered, where utility rates carry more of the answer than climate does.

What to do with this number in Lafayette

Lafayette, Louisiana is home to about 122,280 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. Given the math above, Lafayette is a place worth lining up quotes ahead of a breakdown, not waiting for one.

Get quotes from local HVAC contractors before deciding.

Where Lafayette's figure comes from

Nothing above is a black box: the methodology guide shows the full arithmetic behind Lafayette's 3.06 seasonal COP and payback figure. The $2,000 federal credit baked into Lafayette's number is explained, with the before-and-after math, in the tax credit guide.