Heat Pumps in San Diego: One System That Heats and Cools
CSLB
License #669421
Since
1993
Insured
Bonded & insured
Serving
San Diego County
Rated
5.0 ★ on Google
How it works
What a heat pump is, in one diagram
Every air conditioner moves heat from inside the house to outside using a refrigerant loop: the indoor coil absorbs heat, the compressor raises its pressure and temperature, and the outdoor coil dumps it to the air. A heat pump adds a reversing valve that flips the direction of that loop. In winter the outdoor coil absorbs heat from outside air (there is usable heat in 50°F air) and the indoor coil releases it into the ducts. Same compressor, same coils, same line set; no gas, no flame, no flue.
The hardware looks like what you already have. An outdoor unit sits where the condenser sits now. Indoors, an air handler with a coil and blower replaces the furnace and uses the same ducts, or ductless heads mount on walls in homes without ducts. The thermostat manages heating, cooling and, if fitted, a small electric backup element that most San Diego homes never need.
The heat pump installation page covers what changes when we replace an AC and furnace with a heat pump: electrical, line set, air handler, condensate and thermostat.
Climate fit
Why heat pumps suit San Diego's climate
Heat pumps are most efficient when the outdoor air is mild, and San Diego County is about as mild as the continental United States gets.
Coastal Zone 7
Point Loma, La Jolla, Carlsbad, Encinitas, Chula Vista's bayside: winter nights in the 40s and 50s, summer highs in the 70s. A heat pump runs at high efficiency in both modes and the marine-layer months are its easiest work.
Inland Zone 10
Escondido, Poway, Santee, El Cajon, Rancho Bernardo: hotter summers, cooler winter nights, but lows still well above where a standard heat pump loses capacity. The cooling load governs sizing; the winter load is met with margin.
No cold-climate premium
Cold-climate models exist for places with sub-zero winters. Here, a standard variable-speed heat pump keeps full heating capacity through the coldest nights, so you buy for cooling efficiency and quiet, not for arctic performance.
Backup heat is usually unnecessary
Electric heat strips are the expensive way to heat. A properly sized heat pump in San Diego rarely calls for them, which also keeps the electrical load, and the panel question, smaller.
Types
Types of heat pump we install
Three configurations cover nearly every San Diego home. Which one fits depends on the ducts you have and the rooms you need to reach.
- 01
Ducted (central) heat pump
An outdoor unit and an indoor air handler connected to the existing supply and return ducts. The direct replacement for a central AC and furnace.
- 02
Ductless mini-split
One outdoor unit feeding one or more wall- or ceiling-mounted indoor heads, each its own zone. No ducts, no duct losses.
- 03
Dual-fuel (hybrid)
A heat pump paired with a gas furnace as backup. The heat pump does the cooling and mild-weather heating; the furnace takes over only on the coldest nights.
Efficiency
Efficiency ratings: SEER2 and HSPF2
Heat pumps carry two ratings. SEER2 is cooling efficiency over a season (the same rating an air conditioner carries), and HSPF2 is heating efficiency over a season. Both were revised in 2023 to a test procedure that better reflects real duct static pressure, which is why the numbers look lower than the old SEER and HSPF figures on your existing equipment. California enforces minimums for new equipment; higher tiers cost more up front and pay back through the electric bill.
In coastal San Diego, where cooling hours are modest, a mid-tier variable-speed unit is often the best value. Inland homes with more cooling hours justify a higher SEER2. HSPF2 matters less here than in cold climates because the heating season is short. Our SEER2 explainer goes through the ratings and what the current minimums are.
Incentives · updated 2026
Incentives and rebates: what changed in 2026
Heat pump incentives in San Diego have been generous in recent years and are in flux now. Two things changed: the TECH Clean California single-family heat pump incentive funds for Southern California were fully reserved early in 2026, and the federal 25C tax credit for heat pumps ended for installations completed after December 31, 2025. Other programs (utility, regional and income-qualified) open and close on their own schedules and often have waitlists.
Because of that, this site does not promise a rebate dollar amount. What Superior Air does instead: during the consultation we check what is currently funded for your address and equipment, put anything that applies in the written proposal, and handle the contractor-side paperwork for programs that require it. If nothing is available on the day, we tell you that too. Heat pumps still make sense on their own merits for most homes replacing both heating and cooling.
Next steps
Where to go from here
The installation page, the decision guide and the ductless option.
Heat pump installation & replacement
Replacing an AC-and-furnace pair or an old heat pump: sizing, electrical, ducted vs. ductless, process and price factors.
Learn moreHeat pump vs. AC + furnace
The decision guide: cost, comfort, efficiency, fuel and emissions compared for a San Diego home.
Learn moreDuctless mini-splits
Heat pumps for homes without ducts, ADUs, additions and single problem rooms.
Learn moreFAQ
Heat pump questions
Ready to talk specifics? The installation page covers electrical, sizing and price factors.
What is a heat pump?
Do heat pumps work well in San Diego?
Heat pump or furnace: which is better for my home?
Reviews
What San Diego homeowners say
Reviews left on Google by Superior Air customers. Names abbreviated for privacy.
“Superior Air installed a new air conditioning system at our home in San Diego, and the entire process was smooth and efficient. The team arrived on time and were able to complete the job in just a few hours. They also made sure to cover and protect our floors while they worked. Now the new AC unit runs perfectly and the house cools down much faster than before.”
“Chris was great. He replaced our old split system and the house is cooling much faster now. Mike on the phone was also very responsive and was able to get me a quote within an hour and took the time to explain available rebates and different replacement options.”
“Superior Air came out to inspect our split HVAC system after another company told us we needed a full replacement. Their technician was able to diagnose the issue and repair the system in a few hours for a fraction of the cost. Very honest company and great customer service.”