Heat Pump Payback in Alton, TX
Heat pump vs. gas furnace in Alton, TX
In Alton, a heat pump pays for itself within a reasonable window. Against a like-for-like gas furnace and AC swap, going electric costs $3,000 more up front here. Lower bills claw that back: about $381 saved annually, for a payback of roughly 7.9 years. The window here is reasonable, and it's specific to what Alton actually pays for power and gas.
Compare against another city
Landed on Alton by mistake, or want to compare it against somewhere else? Search the other 3206 cities below.
How cold Alton actually gets
Degree days tell the story here: Alton racks up 319 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 4957 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 39°F here (coldest 2024 reading 27°F), which works out to a seasonal COP of 3.36 for the standard class of unit this climate calls for. Alton's winters don't get cold enough to need the cold-climate premium, a standard unit holds up fine. Source: NOAA station Mc Allen Miller International Airport, 8 miles from Alton, the closest one on record.
Alton's running-cost comparison, in dollars
On a typical 2000-square-foot house, heating needs here are close to nil, so the heat pump's electric bill, near $721 a year, is almost entirely air conditioning. Heating barely registers here, a gas furnace would burn about 3 Mcf a year at $19.42 per Mcf, so nearly all of the $1,102 a year the existing setup costs to run is the old air conditioner. At 16.15¢/kWh, the saving in Alton comes from the heat pump being a more efficient air conditioner, not from heating. 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 $2,710 ahead.
The break-even point in Alton
In Alton 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 Alton: the heat pump is worth it within a decade if it costs less than $3,810 more than replacing the furnace and AC, and within 7 years if the gap is under $2,667.
The other scenario: no gas furnace to begin with
Not every home in Alton has gas service. Against electric-resistance heat, baseboard or an electric furnace, both 100% efficient but still just resistance, the case for switching gets stronger here. The gap still doesn't close: the $7,500 incremental cost outlasts the 15-year equipment life here even against resistance heat.
Where Alton ranks in this dataset
Ranked against the other 3206 cities covered, Alton comes in at 3117 for heating severity, 1 would be the coldest place in the dataset, and 1726 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 Alton, TX
Alton, Texas is home to about 22,907 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, Alton is a place worth lining up quotes ahead of a breakdown, not waiting for one.
Ask a local HVAC contractor for a quote before committing either way.
More on how this number was built
The methodology guide walks through exactly how Alton's 3.36 seasonal COP and the rest of this page's numbers get built. Homes in Alton without gas service should read the electric-resistance comparison instead, the numbers there differ from the gas case above.