How energy-efficient is the Fujitsu AOYG30KBTA4 (Airstage 4-room multi-split outdoor unit)?

Its efficiency rating is SEER 8.7.

Do I need a professional to install the Fujitsu AOYG30KBTA4 (Airstage 4-room multi-split outdoor unit)?

Yes. As a multi-split it needs a certified installer. Usually needs permission.

Multi-splitA++ Heats too

Fujitsu

AOYG30KBTA4 (Airstage 4-room multi-split outdoor unit)

Name: Fujitsu AOYG30KBTA4 (Airstage 4-room multi-split outdoor unit)
Brand: 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

List price

outdoor unit only; indoor units and install extra; 5-year parts warranty common

No live retailer link for this model right now.

Performance

Cooling capacity: 8 kW · 27,300 BTU
Heating capacity: 9.6 kW
Total coverage: 60–100 m²
SEER (cooling): 8.7
SCOP (heating): 4.7
Energy class (cooling): A++
Energy class (heating): A++
Annual energy (cooling): 322 kWh

Noise, size & features

Model number: AOYG30KBTA4
Indoor noise

What is good

Rare A++ rating for both cooling and heating, so efficient year-round
Connects up to 4 indoor units from one outdoor unit
High SEER 8.7 keeps summer running costs low
Quieter R32 platform, up to 7 dB lower sound power than older R410A units

What to watch

Indoor Wi-Fi usually needs a per-unit adapter on some models
Outdoor unit must be sited carefully for the longer total pipe runs of 4 rooms
Full four-room system is a significant investment once installed

Installation & the rules that apply

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.

Installation

Certified installer

Refrigerant

R32

BelgiumCopropriete authorisation for shared partsReviewed June 2026Often blocks install

Common questions about the Fujitsu AOYG30KBTA4 (Airstage 4-room multi-split outdoor unit)

How loud is the Fujitsu AOYG30KBTA4 (Airstage 4-room multi-split outdoor unit)?: 20 dB(A) indoors, quieter than a whisper.
How energy-efficient is the Fujitsu AOYG30KBTA4 (Airstage 4-room multi-split outdoor unit)?: Its efficiency rating is SEER 8.7.
Do I need a professional to install the Fujitsu AOYG30KBTA4 (Airstage 4-room multi-split outdoor unit)?: Yes. As a multi-split it needs a certified installer. Usually needs permission.
Does the Fujitsu AOYG30KBTA4 (Airstage 4-room multi-split outdoor unit) heat as well as cool?: Yes. It also heats, rated 9.6 kW.

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Hisense

2AMW42U4RGC Multi Split (dual)

The Hisense 2AMW42U4RGC is a compact 4.1 kW R32 dual-split outdoor unit that drives two indoor heads from one small, lightweight condenser. It is a budget-friendly way to cool and heat two rooms, such as a living room and bedroom, without a second outdoor box.

Cooling

4.1 kW