Heat Pump Payback in Antioch, CA
Will a heat pump pay off in Antioch, CA?
The payback math works in Antioch on paper, past the equipment's own working life. $3,000 is what Antioch would pay extra to go electric rather than replace the furnace and AC with the same again. Antioch's residents would see roughly $123 a year back in running costs, putting the payback around 24.5 years. That's a technicality, not a recommendation, for anyone actually living in Antioch.
Compare against another city
Landed on Antioch by mistake, or want to compare it against somewhere else? Search the other 3206 cities below.
How cold Antioch actually gets
Degree days tell the story here: Antioch racks up 1907 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1014 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 41.4°F here (coldest 2024 reading 39.7°F), which works out to a seasonal COP of 3.43 for the standard class of unit this climate calls for. Antioch'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, Pittsburg (Suisun Bay), 6.6 miles from Antioch.
The yearly running costs in Antioch
Modelled on a typical 2000-square-foot house, the heat pump draws about 1,408 kWh a year to keep it warm, plus cooling, for a combined electric bill near $746 a year. That compares with roughly 20 Mcf a year of gas at Antioch's $22.01 per-Mcf rate, about $869 a year with the old AC included, against a local electricity rate of 32.83¢/kWh. Buying outright rather than at replacement time stretches payback to longer than the 15-year equipment life. Over 15 years, compared with a like-for-like replacement, the heat pump leaves you $1,162 behind.
What would change Antioch's answer
Gas would only overtake the heat pump in Antioch if electricity rose past 45.6¢/kWh from 32.83¢, or gas fell under $15.84 per Mcf from $22.01. A useful quote test for Antioch: the heat pump is worth it within a decade if it costs less than $1,230 more than replacing the furnace and AC, and within 7 years if the gap is under $861.
If your home heats with electric baseboard instead of gas
Not every home in Antioch has gas service. Swap the comparison to resistance heat instead of gas, and Antioch's answer improves. About $1,271 a year comes back this way, enough that the 5.9-year payback clears the $7,500 premium comfortably within the equipment's life.
How Antioch compares nationally
Antioch lands at position 2475 out of 3206 cities on heating severity (coldest is 1), and 253 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.
Next step if you live in Antioch
Antioch, California is home to about 118,453 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 Antioch, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
Where Antioch's figure comes from
Every constant behind this page, the 3.43 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Antioch technically clears a payback on paper, just past the equipment's own working life, the no-payback guide explains why that distinction matters.