What is a split air conditioner?

A split air conditioner consists of two units connected by a refrigerant pipe: an indoor unit (typically wall-mounted) and an outdoor unit. The monosplit cools one room, the multi-split cools several rooms with a single outdoor unit.

How much does a split air conditioner cost?

At Climamax, an Inverter monosplit split air conditioner starts at €450 (Klarstein, Gree). Budget €700–€1,200 for a premium Daikin or Mitsubishi, and €990 for a bi-split (2 rooms). Installation by a QualiPAC installer is extra.

Reversible split air conditioner: does it really heat?

Yes, a reversible Inverter split air conditioner works as a heat pump in winter: up to 70% savings on heating compared with an electric radiator. Eligible for MaPrimeRénov on certified models fitted by a RGE QualiPAC installer.

Reversible split air conditioner from €450 — Daikin, Mitsubishi

Reversible split air conditioner from €450

The split air conditioner Inverter: cools in summer, heats in winter. Daikin, Mitsubishi, Toshiba, Gree in stock. Environmentally friendly R32, class A++ to A+++, up to 70% savings on heating. Installation by a QualiPAC installer.

Eco R32 3–5 year warranty Fast delivery★ MaPrimeRénov compatible

Split air conditioner: the 2026 buying guide

A split air conditioner consists of two units connected by a refrigerant pipe: an indoor unit (wall, console, ceiling or cassette) that blows conditioned air into the room, and an outdoor unit that releases the heat. It is the most efficient, quietest and most economical solution in use to cool a room over the long term.

Monosplit or multi-split?

The monosplit cools a single room with a dedicated outdoor unit. It is the simplest and cheapest option (from €450). The multi-split cools several rooms (bi, tri or quadri-split) sharing a single outdoor unit: more discreet on the facade, ideal to cool an entire house or flat from €990. Compare our Daikin and Mitsubishi multi-splits.

Reversible split air conditioner: heat the whole house

A split air conditioner reversible Inverter also works as an air-to-air heat pump in winter: up to 70% savings on your electric heating bill. Energy class A++ to A+++, environmentally friendly R32. Eligible for MaPrimeRénov and CEE grants on certified models fitted by a RGE QualiPAC installer.

Which power for which surface?

The power of a split air conditioner is measured in kW or in BTU. Budget 0.1 kW per m² with standard insulation: 2.5 kW (9,000 BTU) for 25 m², 3.5 kW (12,000 BTU) for 35 m², 5 kW (18,000 BTU) for 50 m². Our BTU calculator gives you the exact power in 2 minutes based on your room, orientation and insulation.

Brands: Daikin, Mitsubishi, Toshiba or Klarstein?

Daikin Perfera and Mitsubishi Electric MSZ-AY are the premium benchmarks: record silence (19 dB), ultra-precise Inverter, native WiFi and 5-year warranty. Toshiba Shorai Edge rivals them on slim design. Gree and Klarstein offer the best value with a 3-year warranty. See our brand pages to compare.

Installation, warranty and after-sales

A split air conditioner must be installed by a certified professional installer (handling of R32 refrigerant). Climamax offers installation by a QualiPAC installer across France — required to qualify for MaPrimeRénov. 3 to 5 years manufacturer warranty depending on brand, France-based after-sales service. Free advice on 06 19 30 23 33 — air conditioning expert since 1976.