Mini-split vs central air
Ductless mini-splits and central (ducted) systems both heat and cool — but they fit different homes. Here is how to choose.
Key differences
| Ductless mini-split | Central (ducted) | |
|---|---|---|
| Ductwork | None needed | Requires ducts |
| Zoning | Per-room control | Whole-home (one zone, usually) |
| Efficiency | Very high; no duct losses | High, but 20–30% duct loss possible |
| Look | Visible indoor heads | Hidden, just vents |
Cost & efficiency
For one or two rooms, a mini-split is usually cheaper and avoids the 20–30% energy that leaky ducts lose. For a whole house with many zones, a multi-head mini-split can cost as much as a ducted system. Central air shines when you already have good ductwork — it is invisible and conditions the whole home evenly. Price both with our cost calculator and size with the mini-split sizing tool.
Which fits your home?
Choose a mini-split for homes without ducts, additions, finished basements/garages, or when you want room-by-room control. Choose central when you have (or are installing) quality ductwork and prefer a hidden, whole-home system. Both are available as heat pumps that heat and cool.
Frequently asked questions
Is a mini-split cheaper than central air?
For one or two rooms, usually yes. For a whole house with many zones, the costs can be similar.
Are mini-splits more efficient than central air?
Often, because they avoid the 20–30% energy that ductwork can lose and allow you to condition only occupied rooms.
Can a mini-split cool a whole house?
Yes, with a multi-zone system (one outdoor unit feeding several indoor heads), though many-zone setups approach the cost of ducted central air.
Related
Sources & further reading
Educational guide, reviewed against US DOE & ENERGY STAR guidance and updated June 2026. Estimates only — not a substitute for a professional assessment or Manual J load calculation.