Mitsubishi Electric Heat Pump —
Full System Installation
Homeowner switching from an old gas furnace to a Mitsubishi Electric ducted heat pump. Air handler and outdoor unit installed in one day with ductwork modifications. California electrification rebate eligible.
Outdoor condenser installed
Air handler · Mitsubishi Electric
Ductwork & connections
The Situation
Old Gas Furnace — Time to Switch
Homeowner had a 22-year-old gas furnace running at roughly 70% efficiency. California’s electrification incentives plus rising gas costs made heat pump conversion the clear financial choice. Home had existing ductwork in good condition.
- 22-year-old gas furnace at ~70% efficiency
- Rising PG&E gas rates
- California heat pump rebates available
- Existing ductwork in serviceable condition
Our Assessment
Ducted Heat Pump — Best Fit
Manual J load calculation confirmed the home needed a 3-ton ducted system. Existing ductwork could be reused with minor modifications. Mitsubishi Electric Hyper-Heating selected for its performance down to 5°F — important for Bay Area winter mornings.
- Manual J load calculation: 3-ton requirement
- Existing ductwork reusable with modifications
- Mitsubishi Hyper-Heating for cold starts
- Up to 30 SEER2 efficiency rating
What We Did
One-Day Complete Install
Removed old furnace and AC condenser. Installed Mitsubishi air handler in utility closet and outdoor unit on concrete pad. Connected refrigerant lines, performed vacuum and charge. Modified two duct transitions. System operational by evening.
- Removed old gas furnace and AC condenser
- Installed ducted air handler in utility closet
- Set outdoor condenser on concrete pad
- Modified two duct transitions for optimal airflow
- Full system operational by 5 PM
Project Photos
On-Site Documentation
Outdoor unit on pad
Air handler installed
Duct transitions & condensate
1-Day Installation Complete
Homeowner went from a 70%-efficient gas furnace to a 30 SEER2 heat pump in one day. Estimated 40–50% reduction in heating/cooling costs. Qualified for California electrification rebate.
30
SEER2
1
Day Install
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