Mini-split heat pumps in San Diego

A mini-split is a heat pump: one wall unit heats in winter and cools in summer, no ducts, room by room. The U.S. Department of Energy says modern air-source heat pumps use about 50% less electricity than furnaces and baseboard heaters, and a plug-in space heater makes heat the same way baseboards do. With SDG&E's winter prices starting November 1, that's the difference between about $0.80 and $0.40 for an hour of heat.

Think of a quiet air conditioner that hangs high on the wall and also heats. It comes with a remote. A small unit sits outside, and a technician connects the two through a small hole in the wall; no ducts, no furnace.

You don't need to heat or cool the whole house. One unit in the room you spend your day in (the living room or the bedroom) keeps you comfortable, and the rest of the house can stay as it is. That's where the savings are, and why it suits a parent living alone.

Living in three rooms? Living room, bedroom, kitchen is how a lot of people actually live. One outdoor unit can run wall units in more than one room (a multi-zone system), or start with the room you spend the day in and add one later.

SDG&E TOU-DR1 winter prices; mini-split at the Department of Energy's 50%.

Runs on your phone; nothing is sent anywhere.

1. Does it heat? Look for "heat pump" or a heating mode in the specs. Some units sold as "mini split air conditioners" cool only.
2. Can your outlet run it? The manual lists the circuit it needs. If that means a new circuit, that's an electrician's job.
3. Who connects it? The EPA says installing a mini-split, including connecting pre-charged refrigerant lines, requires a Section 608 certified technician. Budget for one even if the box says easy install.
4. Permit and HOA: ask your city's building department whether your install needs a permit, and check condo or HOA rules for the outdoor unit.
5. Efficiency: compare the SEER2 (cooling) and HSPF2 (heating) ratings, or look for ENERGY STAR.

The 30% federal tax credits are gone. The IRS says the heat pump credit covers improvements made through December 31, 2025, and the solar and battery credit isn't available for anything placed in service after that date. Plenty of ads still quote them. California's heat pump rebates are tapped out too: TECH Clean California says the HEEHRA rebates for single-family homes were fully reserved statewide on February 24, 2026, and for multifamily on September 1, 2026; new requests go on a waitlist. Check the current status before counting on one.

The setup that leans on the grid least in San Diego: rooftop solar for the daytime, a battery for 4 to 9pm, a mini-split for heating and cooling, and the grid only overnight at the cheapest price. Renting? Start with plug-in balcony solar. On your bill now: winter rates · the cheaper Clean Energy Alliance plan · cost to run AC.

PJ doesn't install them (that takes a certified technician and usually a licensed contractor), but he does the homework with you: reads the listing's specs, runs your bill numbers, checks the contractor's license on CSLB before you sign, and handles any rebate paperwork. Text PJ. Every other way to cut the bill: lower your SDG&E bill.

Sources: U.S. Department of Energy, Pump Up Your Savings with Heat Pumps · EPA, Homeowners and Consumers FAQ and Section 608 Q&A · IRS, Energy Efficient Home Improvement Credit · SDG&E TOU-DR1 rates (8/1/2026). Checked October 6, 2026.

Need a human?

This page is built every morning from public data by SideGuy, run by PJ, a local in Solana Beach. If something looks off, or you want a hand with your plans, text PJ at 858-461-8054. A real person answers.

Local help, free to read: make your fix plan · senior benefits checkup · lower your SDG&E bill · Medicare Extra Help · the next 90 days. Plans start as low as $25.