The short answer
A heat pump can replace both a central AC and a gas furnace in a Simi Valley home, since winters here are mild enough for it to heat efficiently. Climvanta sizes it for summer cooling, checks the electrical service and ducts, and confirms which utility rebates apply to your address.
A heat pump moves heat instead of making it. In summer it pulls warmth out of your rooms and dumps it outside; in winter it reverses and gathers heat from the outdoor air to warm the house. For Simi Valley, with hot inland summers and winters that are cool but rarely harsh, that one machine can cover the whole year. Climvanta plans and installs ducted and ductless heat pumps for homes in 93063 and 93065, working out of Tarzana about 13 miles away. This page covers what the switch involves for a typical house in this part of Ventura County.
Is a Simi Valley home a good fit?
For most houses here, yes. The demanding season is summer, and a heat pump cools exactly like a conventional air conditioner. Winter mornings get chilly in the valley, but current variable-speed heat pumps keep producing useful heat at temperatures far colder than this area normally sees, so a backup gas furnace is usually optional rather than required.
The more practical questions are about the house itself. We look at the main electrical panel, the size and condition of the ducts, attic insulation, and where the outdoor unit can go. A home with good ducts and some spare panel capacity is the simplest conversion. Homes with no ductwork, or with a converted garage or addition that never cooled well, can be a strong case for ductless heads.
Ducted, ductless or hybrid
There is more than one way to set this up, and the right answer depends on how your home is built and used.
- Ducted split heat pump: replaces an existing AC condenser and furnace with an outdoor heat pump and an indoor air handler on the current ducts
- Dual-fuel: pairs a heat pump with your existing gas furnace, letting the furnace take over only on the coldest mornings
- Ductless mini-split: individual wall or ceiling heads for rooms without ducts, such as additions, garage conversions or upstairs bedrooms that run hot
- Mixed system: a central heat pump for the main house plus a ductless zone for a problem room
Sizing for cooling first
In Simi Valley the cooling load is almost always larger than the heating load, so we size primarily for summer and then confirm the unit meets winter needs. A full load calculation accounts for window area, roof color, insulation, shading and how many people live in the home. Variable-speed equipment helps here: it can run at low output most of the year and ramp up on the hottest afternoons instead of cycling on and off.
Duct sizing matters as much as equipment sizing. Heat pumps deliver air at a lower temperature in heating mode than a gas furnace, so leaky or undersized ducts are more noticeable. We measure static pressure and seal or modify ducts where it makes a real difference.
Rebates, credits and rules worth knowing
Which equipment rebates are available depends on the utility that serves your address. Many homes outside the City of Los Angeles, including much of this area, are served by Southern California Edison rather than LADWP, so we confirm the current offer for your property before we include it in a quote. LADWP residential customers have a separate Consumer Rebate Program for qualifying heat pump systems, with the amount tied to SEER2 and HSPF2 ratings and an application filed within 12 months after purchase and installation.
On the federal side, the 25C Energy Efficient Home Improvement Credit applied to qualifying heat pumps placed in service before December 31, 2025, and it is not available for new installations after that date. Meanwhile, South Coast AQMD Rule 1111 limits NOx emissions from new gas furnaces and is being amended toward zero-emission requirements, which is one reason some owners decide to move away from gas now rather than at the next furnace failure.
How the installation unfolds
After the site visit and load calculation, we confirm equipment, any electrical work and the permit. On install day the old condenser and furnace or coil come out, the new air handler and outdoor unit go in, and refrigerant lines are run, pressure tested and evacuated. If your panel needs a new circuit, that is completed and inspected as part of the job.
Commissioning is where many installations fall short. We verify the charge, airflow, defrost operation and thermostat settings, including the balance point if you keep a gas furnace as backup. Then we show you how the system behaves differently from a furnace: steadier, lower-temperature warm air that runs longer, which is normal and efficient.
More services in Simi Valley
- AC Repair in Simi Valley
- Heating Repair in Simi Valley
- AC Installation in Simi Valley
- Furnace Repair in Simi Valley