Comparing the cost of a central AC vs a heat pump? A 3-ton central AC replacement typically runs $4,675 – $6,325, while a comparable 3-ton heat pump runs $5,525 – $7,475 installed. The heat pump costs a bit more because it provides heating and cooling in one system — often replacing your furnace too. The calculator below lets you price either.
💵 What Will a New HVAC System Cost?
Estimate the installed replacement cost of a new central AC, heat pump, gas furnace, full system, or mini-split in the US. Adjust for size, efficiency, add-ons (ductwork, removal, permits) and your region to get a realistic price range — before you call a contractor.
🛠️1. System Type
Pick the system you are replacing. "AC + Furnace" is a full split-system swap (both units at once).
📏2. System Size
Range: 1.5 – 5 Tons (cooling). A typical home is 2–3.5 tons.
⚡3. Efficiency Tier
Higher efficiency (SEER2 / AFUE) costs more up front but lowers running bills. Premium tiers are usually variable-speed / inverter.
📍4. Region
Labor rates vary a lot by metro. This scales the estimate to your area; pick National for a baseline.
➕Add-ons & extras (ductwork, removal, permits) — optional
AC vs Heat Pump — Installed Cost
| System | Does | Estimated Cost (3 ton) |
|---|---|---|
| Central AC | Cooling only (needs a separate furnace) | $4,675 – $6,325 |
| Heat Pump | Heating + cooling | $5,525 – $7,475 |
Which Should You Choose?
A heat pump costs a little more up front but can replace both your AC and furnace, and it’s far more efficient at heating than electric resistance — attractive where winters are mild or electricity is reasonably priced. A central AC paired with a gas furnace can be cheaper to run in very cold climates with low gas prices. Compare lifetime running costs with our Heat Pump Savings Calculator, then price each here.
Frequently Asked Questions
Is a heat pump more expensive than an AC? Slightly — about $5,525 to $7,475 installed for a 3-ton heat pump vs $4,675 to $6,325 for a comparable central AC. But the heat pump also heats, often replacing a separate furnace.
Is a heat pump cheaper to run than an AC plus furnace? For heating, a heat pump is typically far more efficient than electric resistance and can beat a furnace where electricity is affordable or winters are mild. In very cold climates with cheap gas, a furnace may win.
Can a heat pump replace my furnace? Yes — a heat pump provides both heating and cooling, so it can replace an AC + furnace combo. In cold regions it’s often paired with backup heat for the coldest days.
Related: refrigeration system problems, causes and solutions.
Estimates vary by contractor. Compare free quotes from licensed local pros before you commit. Request a quote →
High-efficiency systems may qualify for utility rebates and federal or state incentives. Find current programs at ENERGY STAR & DSIRE.
Figures are reviewed by the Refcon HVAC engineering team using U.S. DOE, ENERGY STAR & ACCA Manual J data. Estimates only — confirm with a licensed pro.