An outdoor air conditioning condenser unit mounted on a concrete pad beside a house at sunset.

Heat pump vs Furnace in Santa Clara County, California

When a heat pump makes sense

A heat pump makes sense if you want air conditioning and heat from one system and you are not focused on the lowest possible heating bill. Winter nights here average 39°F, which a heat pump can handle, but a standard model loses heating power as it gets colder, so a cold-climate model is the safer choice if you are set on one. Natural gas heats for at least 45% less here at current prices, so weigh that against the convenience of having one system for both jobs.

When a furnace makes sense

A furnace is the right call if keeping heating costs down matters most, since gas heat runs at least 45% cheaper here than a heat pump. Most homes in this county, 59%, already heat with gas, and the furnace only has to do that one job well for the roughly 7 months a year you need it. You will still need a separate air conditioner for summer, but for straightforward, low-cost winter heat, this is the simpler path.

When a heat pump makes sense

A heat pump makes sense if you want air conditioning and heat from one system and you are not focused on the lowest possible heating bill. Winter nights here average 39°F, which a heat pump can handle, but a standard model loses heating power as it gets colder, so a cold-climate model is the safer choice if you are set on one. Natural gas heats for at least 45% less here at current prices, so weigh that against the convenience of having one system for both jobs.

When a furnace makes sense

A furnace is the right call if keeping heating costs down matters most, since gas heat runs at least 45% cheaper here than a heat pump. Most homes in this county, 59%, already heat with gas, and the furnace only has to do that one job well for the roughly 7 months a year you need it. You will still need a separate air conditioner for summer, but for straightforward, low-cost winter heat, this is the simpler path.

An outdoor heat pump unit mounted on a concrete pad in the front yard of a gray 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 interior showing a gray furnace unit beneath a bare incandescent bulb, surrounded by exposed joists, concrete walls, cardboard boxes, and utility pipes.

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 Santa Clara County.

Gas costs at least 45% less than a heat pump to run here, and it's what most of your neighbors already heat with.

At least 45% lessto heat with natural gas than with a heat pump, at California prices
39°Faverage winter low
59%of homes here heat with gas

If your home has no gas line to it, a heat pump is still worth a look, since it heats and cools 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 39°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 air conditioning and heat from one system and you are not focused on the lowest possible heating bill. Winter nights here average 39°F, which a heat pump can handle, but a standard model loses heating power as it gets colder, so a cold-climate model is the safer choice if you are set on one. Natural gas heats for at least 45% less here at current prices, so weigh that against the convenience of having one system for both jobs.

When a furnace makes sense

A furnace is the right call if keeping heating costs down matters most, since gas heat runs at least 45% cheaper here than a heat pump. Most homes in this county, 59%, already heat with gas, and the furnace only has to do that one job well for the roughly 7 months a year you need it. You will still need a separate air conditioner for summer, but for straightforward, low-cost winter heat, this is the simpler path.

A Santa Clara County contractor will price both against your own house, your ductwork and your panel.

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