Home › Guides › HVAC & appliances › Types of air conditioners: central, mini-split, window & portable
Buyer's guideStaying cool efficiently depends on picking the right type of AC for your home and layout. Here are the main air conditioning options, how they compare, and where each one makes sense.
Central AC and mini-splits cool whole homes; window and portable units handle a room or two.
Have ducts? Central AC fits. No ducts? Mini-splits avoid a costly retrofit.
Look at efficiency ratings — a more efficient unit costs less to run across hot months.
Window and portable units are DIY; central AC and mini-splits need a licensed pro.
Cools the whole home through existing ductwork from one outdoor unit.
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Best for: Homes with ductwork
Indoor units linked to an outdoor unit cool specific rooms with no ducts and precise zoning.
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Best for: Homes without ducts, additions, zoning
A self-contained AC that mounts in a window to cool a single room.
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Best for: Cooling one room on a budget
A freestanding unit that vents out a window — movable from room to room.
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Best for: Renters and spot cooling
Provides both cooling and heating from one efficient system (central or ductless).
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Best for: Homes wanting year-round comfort from one system
Found the type you want? Book a vetted, insured pro at an upfront price:
A ductless mini-split — it cools (and often heats) effectively with room-by-room zoning and no costly ductwork.
Window units are usually more efficient and quieter for a single room; portables win on flexibility and are friendlier for renters.
If you want cooling and efficient heating from one system, a heat pump is worth comparing — it can simplify your whole setup.
