Heat Pump Payback in New Iberia, LA
Heat pump vs. gas furnace in New Iberia, LA
This one's marginal in New Iberia: it only clears if you stay long enough. Against a like-for-like gas furnace and AC swap, going electric costs $3,000 more up front here. That premium is recovered through $262 of lower running costs every year, landing the payback clock at roughly 11.4 years. It's a genuine toss-up here, New Iberia's numbers don't point clearly either way.
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New Iberia's weather, in the numbers that matter
New Iberia barely has a winter to speak of, 1149 heating degree days a year against a 65°F base, and summers are severe enough that cooling can dominate the annual bill, at 3051 cooling degree days. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 28.9°F, and the coldest daily reading in the 2024 station record was 18°F. That puts the seasonal coefficient of performance at 3.06 for the recommended standard unit. New Iberia'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, Acadiana Regional Airport, 4.4 miles from New Iberia.
New Iberia's running-cost comparison, in dollars
Modelled on a typical 2000-square-foot house, the heat pump draws about 951 kWh a year to keep it warm, plus cooling, for a combined electric bill near $480 a year. The gas furnace it replaces burns roughly 12 Mcf a year at $17.38 per Mcf here, for a running cost near $743 a year including the old AC (electricity here runs 13.52¢/kWh). If the current system still worked and you replaced it anyway, the full cost would take longer than the 15-year equipment life to earn back; against buying a new furnace and AC regardless, the 15-year total lands $935 ahead.
What would change New Iberia's answer
In New Iberia 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 New Iberia: the heat pump is worth it within a decade if it costs less than $2,620 more than replacing the furnace and AC, and within 7 years if the gap is under $1,834.
Electric resistance heat in New Iberia, compared
Not every home in New Iberia has gas service. 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.
How New Iberia compares nationally
Ranked against the other 3206 cities covered, New Iberia comes in at 2834 for heating severity, 1 would be the coldest place in the dataset, and 1487 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.
Deciding what's next in New Iberia, LA
New Iberia, Louisiana is home to about 26,849 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 New Iberia, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
More on how this number was built
Every constant behind this page, the 3.06 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Homes in New Iberia without gas service should read the electric-resistance comparison instead, the numbers there differ from the gas case above.