Heat pump vs. gas furnace in Port Arthur, TX
In Port Arthur, a heat pump pays for itself within a reasonable window. $1,000 is what Port Arthur would pay extra to go electric rather than replace the furnace and AC with the same again, once the $2,000 federal credit is applied. Lower bills claw that back: about $301 saved annually, for a payback of roughly 3.3 years. The window here is reasonable, and it's specific to what Port Arthur actually pays for power and gas.
How cold Port Arthur actually gets
Degree days tell the story here: Port Arthur racks up 871 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 3316 cooling degree days on the cooling side. 32.2°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 21.9°F on file. Worked through the model, that's a seasonal COP of 3.16 on the standard unit fit for this climate. Port Arthur'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, PORT ARTHUR, 3.2 miles from Port Arthur.
Port Arthur's running-cost comparison, in dollars
Electricity use for heating alone comes out to about 698 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $569 a year. Port Arthur's gas rate of 19.42 per Mcf, applied to the 9 Mcf a year the furnace burns, puts its running cost near $870 a year, against 16.15¢ per kWh for electricity. Looked at as a full purchase rather than an incremental one, payback here is roughly 36.6 years, leaving the 15-year total $3,513 ahead.
If your home heats with electric baseboard instead of gas
Plenty of homes in Port Arthur heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Port Arthur's answer improves. About $481 a year comes back this way, enough that the 11.4-year payback clears the $5,500 premium comfortably within the equipment's life.
Where Port Arthur ranks in this dataset
Ranked against the other 3206 cities covered, Port Arthur comes in at 2941 for heating severity — 1 would be the coldest place in the dataset — and 736 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 Port Arthur, TX
Port Arthur, Texas is home to about 55,799 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, Port Arthur is a place worth lining up quotes ahead of a breakdown, not waiting for one.
Get quotes from local HVAC contractors before deciding.
More on how this number was built
Every constant behind this page — the 3.16 seasonal COP, the degree-day corrections, the equipment costs — is documented in the methodology guide. The $2,000 federal credit baked into Port Arthur's number is explained, with the before-and-after math, in the tax credit guide.