Heats in Winter. Cools in Summer. Keeps Your Gas Furnace on the Bench.
The science is simple: the coils that get hot to warm your home can be used to cool it — the same technology, just run in reverse. Our crossover systems work with the gas furnace you already have. Pick your system, see your estimated equipment range, and request your FREE full estimate in under two minutes.
Carrier Comfort Series crossover
One Coil. Two Jobs. Runs in Reverse.
A heat pump doesn’t make heat — it moves it. In winter it pulls warmth in from the cold outside air. Flip it, and the same unit pulls heat out of your home to cool you in summer. One coil, running the other direction.
- Heats most of the year — even when it’s cold outside. Our crossover models are built for the East Bay’s cool, foggy winters.
- Cools in summer — the exact same outdoor unit, now doing air conditioning, so one machine replaces your furnace and your AC.
- Keeps your gas furnace as backup — on the coldest snap days, the smart controller hands off to your existing gas furnace so you never feel a dip.
- Works with the gas furnace you already have. No full teardown. No ripped-out ducts. Just an efficient upgrade that lowers your bills.
Choose Your Heat Pump, Add the Smart Controller, See Your Range
Pick the heat pump that fits your home. Prices below are equipment only — your final install is a custom quote based on your specific home’s setup and needs.
Fifteen Years of East Bay Systems, One Family’s Guarantee
Carrier-certified
Factory-trained installers on every crossover and dual-fuel system we put in.
Family-owned, 15 years
We live right here in San Leandro on Williams Street — serving San Leandro, Oakland and Hayward.
Free full estimate
Financing and rebate paperwork handled. No pressure, no obligation.
Questions East Bay Homeowners Ask Us
Do I have to rip out my gas furnace to go dual fuel?
No. A crossover / dual fuel system pairs a new heat pump with the gas furnace you already have. On most installs we keep the existing furnace as backup and just add the heat pump outdoor unit and a fan coil. It’s an upgrade, not a teardown.
What’s the difference between the 37MURA and the 37MUHA?
The 37MURA is the gas / dual-fuel version — it works with your gas furnace for backup heat and is ideal if you’re on gas or want to keep gas. The 37MUHA is all-electric — no gas line, and it pairs perfectly with solar panels. Both are Carrier Comfort Series crossover units with excellent cold-weather performance.
Is the smart controller required?
It’s optional, but it’s the brain that makes dual fuel actually smart. The KSACN1701AAA auto-switches between your heat pump and gas furnace by outdoor temperature and energy demand, so you’re not running gas on a mild day. It also adds Wi-Fi control, iCheck diagnostics, and a 5-year warranty. Most of our customers include it.
What do the numbers like 19 SEER2 and 10.8 HSPF2 mean?
SEER2 measures how efficiently a system cools (higher is better). HSPF2 measures heating efficiency (higher is better). These are the ratings Carrier publishes for each model and they’re why a quality crossover cuts your energy bills vs. an older gas-only or electric-resistance system.
Why does the estimate say “equipment only”?
Because every home is different. Tonnage, ductwork condition, electrical panel, and where the outdoor unit sits all affect final cost. The range on this page is the equipment itself. Your FREE full estimate is where we walk your home, size it correctly, and give you an exact install price.
Talk to a Carrier-Certified Neighbor, Not a Call Center
Free in-home assessment, honest options, financing, and rebate help. We’ll show up in our trucks on Williams Street, right here in San Leandro.