Heat Pump Payback in Glendale, CA
Should Glendale switch to a heat pump?
Glendale technically pencils out, but only past the point the equipment would need replacing anyway. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,000. Glendale's residents would see roughly $146 a year back in running costs, putting the payback around 20.5 years. That's a technicality, not a recommendation, for anyone actually living in Glendale.
Checking a different city
This runs the same numbers for 3206 US cities, not just Glendale. Look one up here.
How cold Glendale actually gets
Glendale has a mild winter by US standards, 1687 heating degree days a year against a 65°F base, and summers are hot enough that cooling matters as much as heating, at 1242 cooling degree days. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 37.9°F, and the coldest daily reading in the 2024 station record was 36°F. That puts the seasonal coefficient of performance at 3.33 for the recommended standard unit. Glendale's winters don't get cold enough to need the cold-climate premium, a standard unit holds up fine. These numbers come from Burbank-Glendale-Pasa Airport, the closest NOAA station, 6.6 miles out.
The yearly running costs in Glendale
A 2000-square-foot house here would pull roughly 1,283 heating kilowatt-hours annually on top of cooling, totalling about $769 a year on electricity. Glendale's gas rate of $22.01 per Mcf, applied to the 18 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $915 a year, against 32.83¢ per kWh for electricity. 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 $805 behind.
What would change Glendale's answer
Gas would only overtake the heat pump in Glendale if electricity rose past 52.8¢/kWh from 32.83¢, or gas fell under $13.68 per Mcf from $22.01. A useful quote test for Glendale: the heat pump is worth it within a decade if it costs less than $1,460 more than replacing the furnace and AC, and within 7 years if the gap is under $1,022.
The other scenario: no gas furnace to begin with
Not every home in Glendale has gas service. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. Switching saves about $1,162 a year here, a heat pump moving heat rather than generating it needs far less electricity than resistance coils, so the extra $7,500 spent up front comes back in about 6.5 years.
Glendale against the rest of the country
Ranked against the other 3206 cities covered, Glendale comes in at 2586 for heating severity, 1 would be the coldest place in the dataset, and 141 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 Glendale, CA
Glendale, California is home to about 187,823 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 Glendale, nothing is lost by holding off until the current equipment genuinely fails.
Line up a few local HVAC quotes before you decide.
Where Glendale's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Glendale's 3.33 seasonal COP and payback figure. Glendale technically clears a payback on paper, just past the equipment's own working life, the no-payback guide explains why that distinction matters.