Heat Pump Installation Cost by Size Guide
The sizes priced apart: two-ton, three-ton, four-ton, and five-ton spans each stand in their own frame, crossed with duct state, Frame A counting equipment bought alone and Frame B counting the fitted job.
Orange County, CA · Updated 2026 · Costs shown as ranges — your quote will vary by installer and scope
The sizes, priced apart by frame
| Tonnage band, as listed | Frame A reading | Frame B reading |
|---|---|---|
| Two-ton span | outdoor unit alone at $2,600-$3,200 | counted inside the installed band, $8,500-$15,000, typical near $11,500 |
| Three-ton span | outdoor unit alone at $3,100-$3,700 | counted inside the installed band, $8,500-$15,000, typical near $11,500 |
| Four-ton span | outdoor unit alone at $3,400-$4,100 | counted inside the installed band, $8,500-$15,000, typical near $11,500 |
| Five-ton span | outdoor unit alone at $3,900-$4,700 | counted inside the installed band, $8,500-$15,000, typical near $11,500 |
Each reading is one frame's own counting for that tonnage band, and the job on every row stays a ducted air-source heat pump system. Frame A prints a unit band per span. Frame B counts each span inside its installed band.
Duct state, as listed by frame
| Duct state, as listed | Frame A reading | Frame B reading |
|---|---|---|
| Existing sound ducts | no duct line counted in any equipment figure | no separate duct line; counted inside the installed band |
| Duct repair lines | no duct line counted in any equipment figure | $800-$4,500 as a separate line |
| New-duct lines | no duct line counted in any equipment figure | $3,500-$8,000 as a separate line |
Duct state crosses the tonnage rows as a line state, not as a second system. Existing sound ducts carry no figure of their own in either frame, and the repair and new-duct readings print as separate lines in Frame B alone.
Frame lines behind the sizes, as reported
| Frame line, as published | Frame | 2026 band |
|---|---|---|
| Unit and air handler, equipment alone | Frame A | $5,000-$10,000 |
| Three-ton equipment set, equipment alone | Frame A | $4,000-$8,000 |
| Installed, the fitted job | Frame B | $8,500-$15,000 |
| Panel upgrades, separate line | Frame B | $800-$2,300 |
| Hybrid dual-fuel systems, variant row, installed | Frame B | $10,000-$16,000 |
The full equipment set prices out of the Frame A lines above: the unit and air handler band at $5,000 to $10,000, read apart from the outdoor-unit rows in the first table. Hybrid dual-fuel systems stand as their own variant row in Frame B.
Sizes priced apart, neighbours named apart
A size line answers the size question only inside its own frame, crossed with the duct state named beside it. The neighbours stay apart: furnace and air-conditioner replacement sits in the replacement hub, ductless mini-splits sit in their own cluster, and heat-pump water heaters sit on their own page — and the system priced here stays a ducted air-source heat pump system on every row.
Reading a by-size quote, by frame
- Tonnage band and duct state named beside every figure
- Each figure read on its own size row only
Frequently asked questions
What does the outdoor unit alone cost by tonnage band, as reported?
Frame A prints the outdoor unit alone by span as listed: $2,600 to $3,200 at two-ton, $3,100 to $3,700 at three-ton, $3,400 to $4,100 at four-ton, and $3,900 to $4,700 at five-ton. Each figure is equipment alone, with no labour counted.
What does installation print at by tonnage band, as reported?
Frame B prints no per-span band. Each tonnage band is counted inside the installed band at $8,500 to $15,000, typical near $11,500, counted as the fitted job for a ducted air-source heat pump system.
What do existing sound ducts, duct repair, and new ducts print at, as listed?
As listed, in Frame B alone: existing sound ducts carry no separate duct line and read inside the installed band. Duct repair lines print at $800 to $4,500 as a separate line, and new-duct lines print at $3,500 to $8,000 as a separate line.
How are hybrid dual-fuel systems priced in this guide, as listed?
As their own variant row in Frame B: hybrid dual-fuel systems print at $10,000 to $16,000 installed, counted as the fitted job. That row stands apart from the ducted air-source heat pump system rows on this page.
Are replacement systems, mini-splits, or water heaters priced in this guide?
No, head-on: this guide prices a ducted air-source heat pump system alone, by tonnage band crossed with duct state. Furnace and air-conditioner replacement sits in the replacement hub, ductless mini-splits sit in their own cluster, and heat-pump water heaters sit on their own page.