Lumberton, TX: the heat pump payback math
Lumberton clears a genuine payback here, inside a reasonable stretch of years. Against a like-for-like gas furnace and AC swap, going electric costs $1,000 more up front here (already netting out a $2,000 tax credit). Lumberton's residents would see roughly $257 a year back in running costs, putting the payback around 3.9 years. The window here is reasonable, and it's specific to what Lumberton actually pays for power and gas.
Lumberton's weather, in the numbers that matter
Lumberton barely has a winter to speak of — 1148 heating degree days a year against a 65°F base — and summers are hot enough that cooling matters as much as heating, at 2482 cooling degree days. 29.1°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 18°F on file. Worked through the model, that's a seasonal COP of 3.07 on the standard unit fit for this climate. Lumberton's winters don't get cold enough to need the cold-climate premium — a standard unit holds up fine. Source: NOAA station BEAUMONT MUNICIPAL AIRPORT, 12.8 miles from Lumberton — the closest one on record.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 947 kWh a year to keep it warm, plus cooling, for a combined electric bill near $495 a year. That compares with roughly 12 Mcf a year of gas at Lumberton's 19.42 per-Mcf rate — about $752 a year — against a local electricity rate of 16.15¢/kWh. Buy it outright, not incrementally, and payback stretches to 42.8 years; over 15 years the net position sits $2,855 ahead.
The other scenario: no gas furnace to begin with
Gas isn't universal in Lumberton — 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 $494 a year, which recovers the extra $5,500 spent going electric in roughly 11.1 years.
How Lumberton compares nationally
Ranked against the other 3206 cities covered, Lumberton comes in at 2836 for heating severity — 1 would be the coldest place in the dataset — and 2482 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.
What to do with this number in Lumberton
Lumberton, Texas is home to about 14,255 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, Lumberton is a place worth lining up quotes ahead of a breakdown, not waiting for one.
Line up a few local HVAC quotes before you decide.
Reading further on this page's numbers
The methodology guide walks through exactly how Lumberton's 3.07 seasonal COP and the rest of this page's numbers get built. The $2,000 federal credit baked into Lumberton's number is explained, with the before-and-after math, in the tax credit guide.