Heat Pump Payback in San Benito, TX
Heat pump vs. gas furnace in San Benito, TX
This one's marginal in San Benito: it only clears if you stay long enough. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,000. That premium is recovered through $325 of lower running costs every year, landing the payback clock at roughly 9.2 years. It's a genuine toss-up here, San Benito's numbers don't point clearly either way.
Compare against another city
San Benito is one of 3206 cities covered here, each run through the same model. Search another below.
How cold San Benito actually gets
Degree days tell the story here: San Benito racks up 402 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 4101 cooling degree days on the cooling side. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 37°F, and the coldest daily reading in the 2024 station record was 25°F. That puts the seasonal coefficient of performance at 3.3 for the recommended standard unit. San Benito's winters don't get cold enough to need the cold-climate premium, a standard unit holds up fine. These numbers come from Valley International Airport, the closest NOAA station, 6.8 miles out.
What it actually costs to run, year to year
A 2000-square-foot house here would pull roughly 308 heating kilowatt-hours annually on top of cooling, totalling about $615 a year on electricity. Heating barely registers here, a gas furnace would burn about 4 Mcf a year at $19.42 per Mcf, so nearly all of the $940 a year the existing setup costs to run is the old air conditioner. At 16.15¢/kWh, the saving in San Benito 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 $1,877 ahead.
What would change San Benito's answer
In San Benito 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 San Benito: the heat pump is worth it within a decade if it costs less than $3,250 more than replacing the furnace and AC, and within 7 years if the gap is under $2,275.
If your home heats with electric baseboard instead of gas
Not every home in San Benito 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.
San Benito against the rest of the country
San Benito lands at position 3082 out of 3206 cities on heating severity (coldest is 1), and 1626 out of 3206 by population size (biggest is 1). 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 San Benito
San Benito, Texas is home to about 24,712 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 San Benito, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
Where San Benito's figure comes from
The methodology guide walks through exactly how San Benito's 3.3 seasonal COP and the rest of this page's numbers get built. Homes in San Benito without gas service should read the electric-resistance comparison instead, the numbers there differ from the gas case above.