Heat Pump Payback in Monroe, LA
Monroe, LA: the heat pump payback math
In Monroe, the extra upfront cost technically comes back, just not before the equipment wears out. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. Lower bills claw that back: about $292 saved annually, for a payback of roughly 18.8 years. Monroe's own numbers say this pencils out only in theory, not in practice.
Compare against another city
Monroe is one of 3206 cities covered here, each run through the same model. Search another below.
The climate behind Monroe's payback figure
Monroe has a mild winter by US standards, 1662 heating degree days a year against a 65°F base, and summers are severe enough that cooling can dominate the annual bill, at 2858 cooling degree days. Sizing runs off the design temperature, not the average day: 19°F here (coldest 2024 reading 12°F), which works out to a seasonal COP of 3.16 for the cold-climate class of unit this climate calls for. The average winter here is gentle, but sizing follows the cold snaps, and 19°F is below the 25°F point where a standard unit leans on resistance backup, so a cold-climate unit is what gets priced for Monroe. These numbers come from Monroe Regional Airport, the closest NOAA station, 2.1 miles out.
The yearly running costs in Monroe
Electricity use for heating alone comes out to about 1,332 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $510 a year. Monroe's gas rate of $17.38 per Mcf, applied to the 17 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $802 a year, against 13.52¢ per kWh for electricity. 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 $1,119 behind.
How sensitive Monroe's result is to prices
This result holds unless electricity climbs above 465.5¢/kWh (it is 13.52¢ now) or gas drops below $0.50 per Mcf (now $17.38); past either point, gas becomes the cheaper fuel in Monroe. When quotes arrive, compare the heat pump price with a like-for-like furnace and AC replacement: at $292 a year saved, a difference under $2,044 pays back within 7 years here, and under $2,920 within 10.
The other scenario: no gas furnace to begin with
Gas isn't universal in Monroe, many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Monroe's answer improves. Even against resistance heat, the running-cost gap here isn't enough to clear the $10,000 incremental cost within the equipment's 15-year life.
How Monroe compares nationally
Among 3206 cities, Monroe's winter puts it at rank 2617 for severity, while its size puts it at rank 878 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 Monroe
About 46,622 people live in Monroe, Louisiana, and every number on this page is what a contractor would actually work from when quoting a system here, the point isn't to replace that quote, it's to tell you whether to bother asking for one. Here, there's no cost penalty to waiting until your current furnace or AC actually needs replacing.
Ask a local HVAC contractor for a quote before committing either way.
Reading further on this page's numbers
Every constant behind this page, the 3.16 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Monroe's 19°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.