How big is a mini-split?#
A mini-split pairs a slim indoor head, 30 to 45 inches wide but only 8 to 13 inches tall, with a small outdoor condenser sized 26 to 38 inches wide. The table below covers the wall head plus the single-zone and multi-zone condensers.
Mini-split dimensions by configuration#
| Configuration | Width (in) | Height (in) | Depth (in) | Best for |
|---|---|---|---|---|
| Wall-mounted indoor head | 30–45 | 8–13 | 7–9 | a single room or zone |
| Single-zone outdoor condenser | 26–32 | 21–26 | 9–12 | one indoor head |
| Multi-zone outdoor condenser | 34–38 | 26–33 | 12–13 | two to five indoor heads |
Do You Have the Right Tools?
Multimeter ($85), vacuum pump ($250), diagnostic software, and specialized hand tools. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
Licensed & Insured · 90-Day Warranty · Same-Day Service
Installation clearances for a mini-split#
- Indoor head clearance: 6–12 in in above and beside a mini-split indoor head so it can draw and throw air.
- Mounting height: 84–96 in in up the wall a mini-split indoor head typically mounts, high enough to spread air across the room.
- Outdoor clearance: 12–24 in in around a mini-split outdoor condenser for airflow and the line-set connections.
- Line set: A mini-split links its indoor head and outdoor condenser with a slim refrigerant line set through a small wall penetration.
Will your mini-split fit? Clearances and door swing#
A mini-split installs in two places, so plan clearances at both. The wall-mounted indoor head wants 6 to 12 inches of open space above and to each side so it can draw room air in the top and throw conditioned air out the bottom, and it typically mounts high, 84 to 96 inches up the wall, to spread air across the room. Outside, the condenser needs 12 to 24 inches around it for airflow and to land the line-set connections. The two halves link through a slim refrigerant line set that passes through a small wall penetration, so pick head and condenser locations that keep that run short and let it reach a drain for the head's condensate. Confirm the wall behind the head is solid enough to carry it.
Safety First — Know the Risks
Appliances involve high voltage (120-240V), pressurized water, gas lines, and chemical refrigerants. Over 400 DIY repair injuries are reported yearly. Our techs are licensed and insured — let them handle the risk.
Licensed & Insured · 90-Day Warranty · Same-Day Service
Mini-split sizes by type: wall-mounted indoor head, single-zone outdoor condenser, multi-zone outdoor condenser#
The three pieces combine to match the number of rooms. The wall-mounted indoor head, 30 to 45 inches wide and just 8 to 13 inches tall, is the slim unit that hangs high on a wall to serve one room or zone. The single-zone outdoor condenser, 26 to 32 inches wide and 21 to 26 tall, is the compact box that pairs with exactly one head. The multi-zone outdoor condenser grows to 34 to 38 inches wide and 26 to 33 tall so it can feed two to five indoor heads from one outdoor unit. Count the rooms you want to condition, then choose a single- or multi-zone condenser to match.
Mini-split dimensions: common questions#
How big is a mini-split indoor unit?#
The wall head is wide but shallow: 30 to 45 inches across, 8 to 13 inches tall, and only 7 to 9 inches deep. That slim profile lets it sit high on a wall unobtrusively.
How high do you mount a mini-split head on the wall?#
Heads typically mount 84 to 96 inches up the wall, near the ceiling, so conditioned air spreads across the whole room. Leave 6 to 12 inches of clearance above and beside it.
How big is a mini-split outdoor condenser?#
A single-zone condenser is 26 to 32 inches wide and 21 to 26 tall. A multi-zone unit that feeds several heads is larger at 34 to 38 wide and 26 to 33 tall.
How much clearance does a mini-split head need?#
Give the indoor head 6 to 12 inches of open space above and to the sides so it can pull in and distribute air. Furniture or cabinets crowding it reduce its throw.
How deep is a ductless indoor head?#
The head projects only 7 to 9 inches from the wall, so it barely intrudes into the room. Its width and length carry the capacity, not its depth.
Appliance Repair Technician & Diagnostics Specialist · 10 years experience
Electronics and diagnostics specialist with 10 years of experience in modern smart appliance repair, specializing in LG and Samsung.
