Heat pump vs. gas furnace in Sierra Madre, CA

Sierra Madre clears a genuine payback here, inside a reasonable stretch of years. $1,000 is what Sierra Madre 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. Sierra Madre's residents would see roughly $323 a year back in running costs, putting the payback around 3.1 years. The window here is reasonable, and it's specific to what Sierra Madre actually pays for power and gas.

How cold Sierra Madre actually gets

Degree days tell the story here: Sierra Madre racks up 686 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 2300 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 39.2°F, against a record low of 37.4°F. That puts the seasonal coefficient of performance at 3.37 for the recommended standard unit. Sierra Madre'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, EL MONTE AIRPORT, 6 miles from Sierra Madre.

The month-to-month numbers for Sierra Madre

Modelled on a typical 2000-square-foot house, the heat pump draws about 515 kWh a year to keep it warm, plus cooling, for a combined electric bill near $813 a year. The gas furnace it replaces burns roughly 7 Mcf a year at 22.01 per Mcf here, for a running cost near $1,136 a year (electricity here runs 32.83¢/kWh). Looked at as a full purchase rather than an incremental one, payback here is roughly 34.1 years, leaving the 15-year total $3,842 ahead.

If your home heats with electric baseboard instead of gas

Plenty of homes in Sierra Madre heat with electricity alone, no gas line involved. Against electric-resistance heat — baseboard or an electric furnace, both 100% efficient but still just resistance — the case for switching gets stronger here. About $736 a year comes back this way, enough that the 7.5-year payback clears the $5,500 premium comfortably within the equipment's life.

Where Sierra Madre ranks in this dataset

Sierra Madre lands at position 3014 out of 3206 cities on heating severity (coldest is 1), and 3031 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.

Deciding what's next in Sierra Madre, CA

Sierra Madre, California is home to about 10,775 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, Sierra Madre is a place worth lining up quotes ahead of a breakdown, not waiting for one.

Line up a few local HVAC quotes before you decide.

More on how this number was built

The methodology guide walks through exactly how Sierra Madre's 3.37 seasonal COP and the rest of this page's numbers get built. The $2,000 federal credit baked into Sierra Madre's number is explained, with the before-and-after math, in the tax credit guide.