An outdoor air conditioning condenser unit mounted on a concrete pad next to a residential house at sunset.

Heat pump vs Furnace in Contra Costa County, California

When a heat pump makes sense

A heat pump makes sense if you want one system that both heats and cools, and you don't mind paying more to run it through the winter. Nights here average 41°F, mild enough that a standard model can keep up without needing the cold-climate version built for harder winters. Expect higher running costs than gas for the six months a year you need heat.

When a furnace makes sense

A furnace is the cheaper way to heat here, since natural gas costs at least 45% less than a heat pump to run at California prices. That gap adds up over six months of heating a year. It won't cool your home, so you'd still need a separate air conditioner for summer, but most homes in the county already heat this way.

When a heat pump makes sense

A heat pump makes sense if you want one system that both heats and cools, and you don't mind paying more to run it through the winter. Nights here average 41°F, mild enough that a standard model can keep up without needing the cold-climate version built for harder winters. Expect higher running costs than gas for the six months a year you need heat.

When a furnace makes sense

A furnace is the cheaper way to heat here, since natural gas costs at least 45% less than a heat pump to run at California prices. That gap adds up over six months of heating a year. It won't cool your home, so you'd still need a separate air conditioner for summer, but most homes in the county already heat this way.

An outdoor heat pump unit mounted on a concrete pad in front of a two-story suburban house.

Heat pump

Runs on
Electricity
What it does
Heats and cools
Tax credit
No federal tax credit since the end of 2025

Sources: U.S. Department of Energy · Internal Revenue Code

An unfinished basement featuring concrete block walls, exposed floor joists, and a metal forced-air furnace with ductwork near a central pillar.

Furnace

Runs on
Natural gas
What it does
Heats only
Tax credit
No federal tax credit since the end of 2025

Sources: U.S. Department of Energy · Internal Revenue Code

Furnace wins in Contra Costa County.

Gas heat costs at least 45% less than a heat pump at California's electric rates, and it's what most homes here already run on.

At least 45% lessto heat with natural gas than with a heat pump, at California prices
41°Faverage winter low
66%of homes here heat with gas

If your home has no gas line to it, a heat pump is still worth looking at, since it handles both heating and cooling without one.

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Compared onHeat pumpFurnace
Cost to run hereCosts more to runAt least 45% less to run
What it doesHeats and coolsHeats only
Homes in the Pacific states that heat with one4.8%56.9%
Handles a 41°F nightStandard models lose heating power in the cold; cold-climate models are built for itYes

Sources: U.S. Energy Information Administration, U.S. Department of Energy, NOAA

When a heat pump makes sense

A heat pump makes sense if you want one system that both heats and cools, and you don't mind paying more to run it through the winter. Nights here average 41°F, mild enough that a standard model can keep up without needing the cold-climate version built for harder winters. Expect higher running costs than gas for the six months a year you need heat.

When a furnace makes sense

A furnace is the cheaper way to heat here, since natural gas costs at least 45% less than a heat pump to run at California prices. That gap adds up over six months of heating a year. It won't cool your home, so you'd still need a separate air conditioner for summer, but most homes in the county already heat this way.

A Contra Costa County contractor will price both against your own house, your ductwork and your panel.

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