Central Air Conditioner
A split-system cooling unit with an outdoor condenser and indoor evaporator coil that distributes cooled air through ductwork.
Quick answer
Central Air Conditioner: A split-system cooling unit with an outdoor condenser and indoor evaporator coil that distributes cooled air through ductwork. Typical cost: $4,500–$9,500 installed for a 3-ton 14–16 SEER2 system..
Why it matters
Central AC is the default cooling system in most US homes; right-sizing and SEER2 rating drive both comfort and your summer power bill.
Typical cost
$4,500–$9,500 installed for a 3-ton 14–16 SEER2 system.
Pros
- • Whole-house cooling
- • Quiet vs window units
- • Pairs with existing furnace ducts
Cons
- • Needs ductwork
- • 10–15 year lifespan
- • Refrigerant transitions (R-410A → R-454B) raise replacement costs
Common uses
- • Existing forced-air homes
- • Hot and humid climate zones
Alternatives
Heat pumpMini-splitsWindow/portable units
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Frequently asked questions
- What size AC do I need?
- Roughly 1 ton per 500–700 sq ft, but a Manual J load calc is the only reliable answer.
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