Fujitsu air conditioning

If you have been quoted for Fujitsu Airstage, you are looking at the current generation of Fujitsu home air conditioning. Airstage is the product name GENERAL uses across its line-up, from the AIRSTAGE Mobile app to big commercial VRF systems, and UK suppliers now sell the home wall units as Fujitsu Airstage. The indoor units carry ASEH model codes. The older ASYG codes, which you will still see in plenty of listings and some quotes, belong to the previous generation and have been superseded, so treat an ASYG unit as run-out stock rather than the current model and compare it on price accordingly.

The Airstage Standard Series KMCG is the one most homes end up with. It comes in four sizes, the ASEH07KMCG, ASEH09KMCG, ASEH12KMCG and ASEH14KMCG, with 2.0, 2.5, 3.4 and 4.2 kW of cooling, which takes you from a box room to a good-sized living room; our guide to what size air conditioning you need will tell you which. On paper it is a strong mid-range unit. The two smaller sizes have a SEER of 8.40 and a SCOP of 4.60, ahead of the 7.20 to 7.30 SEER of the Daikin Comfora, and every size drops to a 20 dB(A) quiet setting indoors, which is bedroom-quiet. Efficiency eases off as the units get bigger (SEER 7.70 on the 3.4 kW and 7.10 on the 4.2 kW), all four run on R32, and they keep heating down to -15°C outside, so they work as an air-to-air heat pump through the winter too. There is a Soft Black version of each size, marked with a -B on the end of the code.

Above and below it sit the other tiers. The Designer Series KJCAL (ASEH07 to ASEH14KJCAL) is the style-led option with an occupancy sensor, and the large-room Standard Series KMTGL and KMTB models cover open-plan spaces. The ECO Series is the budget end, split into the compact KNCA, the cooling-focused KLTBL and the large-room KLCBL. Those ECO codes have already changed once since 2025, so check the exact code on any quote against GENERAL's UK site.

Wi-Fi is the thing to pin down before you sign. GENERAL's own UK product pages describe phone control on the KMCG as working through an optional WLAN adapter, yet at least one UK supplier lists the same indoor units with Wi-Fi included, so ask your installer whether the adapter is in the price. Once it is connected, GENERAL runs two apps, AIRSTAGE Mobile and the older FGLair, and which one your system uses depends on the adapter; GENERAL's site has a compatibility list, and the adapter's Wi-Fi network name tells you too. Our guide to smart air conditioning covers what app control is worth day to day.

As for cost, Airstage is sold through the trade, and one UK supplier lists a 2.5 kW KMCG indoor and outdoor pair at around £1,200 including VAT, or about £1,350 for the 3.4 kW, before fitting. Your installer will normally buy the kit, so expect a quote that bundles it with the installation; how much air conditioning costs explains what a fair fitted price looks like. We have not reviewed a KMCG model yet, because there is not enough UK owner feedback on the new codes to judge it fairly, but the brand's installer reputation carries over and the specification gives it a lot to like. If you need a manual for an Airstage unit you already own, GENERAL keeps them on its UK downloads page.