
Mitsubishi Electric
Mitsubishi Electric's 4-port outdoor unit lets one condenser feed up to four indoor units, so you can air-condition several rooms without a separate box on the wall for each.
€2,400
List priceoutdoor unit only; indoor units and install extra (Wi-Fi often needs an MAC-587 adapter per indoor unit)
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Units like this are usually quoted and fitted by a specialist installer. Compare it against models you can buy today.
Sizing this system
This is a whole-home system: its rated cooling is shared across several indoor units or distributed through ductwork, so there is no single room it does or does not fit. An installer sizes each zone against that room (a Manual J calculation), which is why we do not print a room verdict here.
Installation cost
$5,000-15,000 fully installed depending on the number of zones (roughly $3,000-8,000+ for the multi-zone install on top of the equipment). A 2-room (2x1) setup sits near the lower end, a 4-5 room whole-home system near the top. The unit price you see here is hardware only; installation is the larger, separate cost.
A typical range for this system type, for comparison only, not a quote for this unit. The actual price depends on the line-set run, electrical work and access.
At a glance
Best for homeowners retrofitting cooling and heating into three or four rooms with one tidy outdoor unit.
This is a multi-split. Same F-gas certified-installer requirement and sub-750 GWP refrigerant rule as a single split, applied across a bigger system. Because it touches multiple rooms and routes pipes through the structure, it more often triggers planning or prior-declaration steps, freeholder, landlord or condominium and shared-wall consent, and neighbour distance and noise rules. Heritage and historic-centre restrictions apply to the outdoor unit just as for a single split, but the single shared condenser is often easier to get approved than several separate units.
Certified installer
R32

Fujitsu
Fujitsu's four-port Airstage outdoor unit earns an A++ rating for both cooling and heating, running up to four indoor units efficiently across a whole home.
€2,200
Hardware price

Daikin
A single Daikin outdoor unit that runs up to four indoor units, so one wall-mounted condenser can cool and heat a whole flat or small house. You pick the indoor unit style per room.
€2,600
Hardware price

Mitsubishi Heavy Industries
The Mitsubishi Heavy Industries SCM80ZS-W is an 8.0 kW R32 multi-split outdoor unit that feeds up to four indoor heads, letting you cool and heat several rooms from a single condenser. It is a workhorse choice for a whole apartment or a multi-room house extension.
€2,300
Hardware price