Central AC
- Cooling-only replacement is the defined scope
- Existing heating remains in service
- Lowest first cost is prioritized
US SYSTEM COMPARISON
Central AC vs. heat pump
Both can cool through ducts; the key difference is whether the outdoor system also supplies heat.
| Decision | Central AC | Heat pump |
|---|---|---|
| Cooling | Yes | Yes |
| Heating | No | Yes |
| Efficiency metrics | SEER2 / EER2 | SEER2 / EER2 / HSPF2 |
| Existing furnace | Common paired route | May remain as dual-fuel backup |
| Quote focus | Cooling load and ducts | Heating load, balance point and backup |
Fit check
When each route deserves a closer look
Heat pump
- Heating and cooling are being planned together
- Electrification or dual fuel is being evaluated
- Cold-weather output is documented
Comparison questions
Keep the assumptions equal.
Is Central AC always cheaper than Heat pump?+
No. Equipment, existing infrastructure, local labor, permits, financing and operating cost must be compared with the same home assumptions.
How should I compare Central AC and Heat pump quotes?+
Give bidders the same home data and require itemized equipment, labor, electrical or fuel work, permits, commissioning, exclusions and warranties.
Test the decision
Move from system type to project economics.
Use identical home, comfort and cost assumptions for both routes.