The right air conditioning for your home — in four questions.
From a single 2.68 kW room unit to a 16 kW commercial floor. A+++ inverter systems, five indoor unit types, and one outdoor unit for the whole home.
Top efficiency class
A+++
on Next+, Momentum+, Alpenluft+ and Series T+
Warranty
5 / 7 years
on the unit and the inverter compressor
Refrigerant
R-32
low-GWP across the residential range
SmartLife
SmartHome
climate control from your phone, at home or away
Find the situation that matches your home.
Each one names the system, the capacity range and what it costs you — including the parts that won't suit everyone.
- System
- Single split — one indoor unit, one outdoor unit
- Series
- Next+
A+++
- Capacity
- 2.68 kW
What works
- Simplest installation — one pipe run, one wall penetration
- Heats as well as cools, so it covers the shoulder seasons
- Lowest entry cost of the range at the top efficiency class
What to accept
- One room only — a second room needs its own outdoor unit
- Needs clear wall space above head height
Renting, or the architecture can't be touched
No drilling, no facade brackets, no landlord conversation. Heat or cool one room with a portable unit that moves with you.

The unit follows the room, not the other way round.

Wall-mounted
The default. Best price-to-design ratio, quickest install.

Ceiling and floor
Sits low under glazing where there's no wall height to use.

Ducted
Hidden in the ceiling void — only the diffuser shows.

Round Way Cassette
Four-way airflow from the ceiling centre. Walls stay empty.
Three comparisons you're really making.
Not split versus multi split. The choices people weigh before they ever open a manufacturer's site.
Portable unit or a fixed split?
Portable
If the home isn't yours to modify- No drilling, no facade work, no landlord approval
- Moves to the next flat with you
- One room at a time, 1.47–4.1 kW
- Compressor sits in the room, so you hear it
Fixed split
If you're staying- Compressor lives outside — the room stays quiet
- A+++ inverter operation, down to 1 Hz
- Heats in winter, so it replaces two appliances
- Permanent install: wall penetration and a bracket
Both are BAUF ranges. The question is how long the home stays yours, not which unit is better.
Three single splits, or one multi split?
Three single splits
If the rooms were done one at a time- Each room gets its full rated capacity, always
- One failure doesn't affect the other rooms
- Three outdoor units on the facade, three sets of brackets
- Can be added room by room as budget allows
One multi split
If you're doing the whole home at once- One outdoor unit — Series T+ from 5.27 to 8.8 kW
- Independent temperature and schedule per room
- Shared capacity: all rooms at full load reduces per-room output
- Needs the pipe routes planned before finishes go in
One multi split, or a commercial unit?
Multi split
If you're cooling several rooms- Every room has its own temperature, and switches off when nobody's in it
- One outdoor unit on the facade for up to four rooms
- Slim indoor units on the wall — a bedroom still looks like a bedroom
- Heats through the winter, so it replaces two appliances
- Rooms share one compressor: everything on at once and each room gets less
Commercial unit
If you're cooling one large space- Takes on a room a wall unit can't — open plan, shop floor, restaurant
- Lives in the ceiling: only a grille is visible, the walls stay clear
- Air comes from above in every direction, so nobody sits in the draught
- Pumps its condensate away, so it fits where water won't drain by gravity
- One panel, or the building's own system, runs it — not five remotes
Six things you can check on the spec sheet.
Inverter control
The compressor holds temperature at very low frequency instead of cycling on and off.
Standby draw
What the unit uses when it's doing nothing at all.
Energy use
Up to a third less than a non-inverter system of the same output.
Heat exchanger coating
Anti-corrosion layer on the coil — it matters most on coastal and dusty sites.
Refrigerant detection
A refrigerant leak shows as an error code before it damages the compressor.
After a power cut
The unit comes back on its previous settings instead of a factory default.
Two numbers, both on paper.
Indoor and outdoor unit, across the air conditioning range.
The component that decides how long the system lasts.
Need to heat the whole house?
An air conditioner conditions the air in a room. Whole-home hydronic heating and domestic hot water call for a heat pump — Hamme Hydro All-in-One replaces your boiler, hot water cylinder and air conditioner with a single indoor unit.

Before you ask us.
Tell us about the space. We'll name the system.
Step 1 of 2
