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Independent reviews and buying advice for home air conditioning units: compare models, specs and prices.
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Wall-mounted split systems
The default way to cool and heat a single room: one indoor wall unit, one outdoor condenser. Quiet, efficient and, on a reverse-cycle model, a low-cost heater in winter too.
Multi-split systems
Cool and heat several rooms from a single outdoor unit. Tidier than multiple separate systems, and you can mix wall, floor, cassette and ducted indoor units on one condenser.
Portable air conditioners
Plug-in cooling with no installation, no planning and no F-Gas engineer. Here is how portable units really perform, what they cost to run, and when a fixed split is the smarter buy.
Ducted air conditioning
Near-invisible cooling and heating. The indoor unit hides in a loft or ceiling void and delivers air through discreet grilles, so only the grilles show. The tidiest option, and the priciest.
Floor-standing air conditioners
A fixed console that sits low against a wall, ideal where there is no room for a high wall unit. Great for glazed rooms and heating-led use, with warm air delivered at floor level like a radiator.
Ceiling cassette air conditioning
A unit recessed into the ceiling, flush behind a slim grille, that spreads air evenly across the room. Ideal for open-plan spaces and loft rooms, as long as there is enough ceiling void to hide it.
Top-rated this month
Perfera FTXM-A
★★★★★ ★★★★★ 4.52.0–7.1 kW · up to A+++ · from 19 dB(A) · R32
supplied & fitted, 3.5 kW single split (standard install) from £2,034Mitsubishi Electric MSZ-LN
★★★★★ ★★★★★ 4.52.5–6.1 kW · up to A+++ · from 19 dB(A) · R32
supplied & fitted, 2.5 kW (LN25) from £2,000Stylish FTXA
★★★★★ ★★★★★ 4.42.0–5.0 kW · up to A+++ · from 19 dB(A) · R32
supplied & fitted, 2.5 kW, standard 3-5 m install £2,146Daikin 3MXM Multi-split
★★★★★ ★★★★★ 4.35.2 kW class · up to 3 rooms · R32 · A+++/A++
outdoor unit only, 3MXM52 (5.2 kW); indoor units and fitting extra £1,779Pinguino PAC EX100 Silent
★★★★★ ★★★★★ 4.210,000 BTU · about 2.4 kW · A++ (EER 3.6) · R290 · from 49 dB(A)
sold via Amazon.co.uk; price varies by seller £854Midea PortaSplit
★★★★★ ★★★★★ 4.212,000 BTU (3.5 kW) · R32 · SEER 6.1 · from 39 dB(A) indoor
12,000 BTU heat-pump model; recent price, stock seasonal £950Shop by brand
Daikin
★★★★★ ★★★★★ 4.7One of the biggest names in air conditioning and a favourite with UK installers, for its class-leading efficiency and wide choice of designer finishes.
Mitsubishi Electric
★★★★★ ★★★★★ 4.6Superb build quality and class-leading quiet running. The premium pick when near-silent bedroom operation matters most.
Panasonic
★★★★★ ★★★★★ 4.5A big-four Japanese brand whose Etherea range pairs top-tier efficiency with nanoe X air purification that runs even when you are not heating or cooling.
Toshiba
★★★★★ ★★★★★ 4.4Premium Japanese engineering with a twist: the Haori wears a changeable fabric fascia and the Daiseikai 10 is among the most efficient units you can buy.
Fujitsu
★★★★★ ★★★★★ 4.3A long-established, installer-trusted Japanese split-system brand. Quietly excellent, broad range, and no relation to Fujitsu the computer company.
Samsung
★★★★★ ★★★★★ 4.2Draught-free Wind-Free cooling and the best smart-home integration in air conditioning, in distinctive designs at a competitive price.
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