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Cheapest 16 kW (≈55,000 BTU) air conditioners to run in the UK: 23 models

Lennox LXAIDHM 15.3 kW (LXA-RHMI55NO(G)) is the lowest 400-hour summer cost here at ≈£255.68 at 26.32p/kWh. If the unit sits close to a neighbour, a quieter model can be worth the extra running cost.

computed

bar · 16 kW (≈55,000 BTU) kW · £ at 400 hours, low to high · n=23 · 25 Sep 2026

Ranked models

23 models match this list. £ at 400 hours, low to high.

16 kW (≈55,000 BTU) · £ at 400 hours, low to high. £ per summer uses 26.32p/kWh at 400 hours.
RankModelLwA dB(A)3 m dB(A)SEER£ at 400 hRefrigerantObserved price
1Lennox LXAIDHM 15.3 kW (LXA-RHMI55NO(G))73.055.56.3£255.68R32—
2Midea MCD 15.3 kW (MOE30U-55HFN8-R(GA) / MCD1-55HRFNX(GA))75.057.56.3£255.68R32—
3Midea MCD 15.3 kW (MOE30U-55HFN8-R(GA) / MCD1-55HRFNX(GA))75.057.56.3£255.68R32—
4Nørdis NIC 15.3 kW (NOA-55-3)73.055.56.3£255.68R32—
5Nørdis / Nordis NIC 15.3 kW (NOA-55-3)73.055.56.3£255.68R32—
6Midea MTI 15.3 kW (MOE30U-55HFN8-R(GA) / MTI-55HWFNX(GA))74.056.56.1£264.06R32—
7Midea MTI 15.3 kW (MOE30U-55HFN8-R(GA) / MTI-55HWFNX(GA))74.056.56.1£264.06R32—
8Lennox LXAITHM 15.5 kW (LXA-RHMI55NO(G))73.055.56.1£267.51R32—
9Midea MUE 15.5 kW (MOE30U-55HFN8-R(GA) / MUE-55HRFNX(GA))73.055.56.1£267.51R32—
10Midea MUE 15.5 kW (MOE30U-55HFN8-R(GA) / MUE-55HRFNX(GA))73.055.56.1£267.51R32—
11Nørdis NIF 15.5 kW (NOA-55-3)73.055.56.1£267.51R32—
12Nørdis / Nordis NIF 15.5 kW (NOA-55-3)73.055.56.1£267.51R32—
13Midea MTI 15.4 kW (MOU-55FN8-RD0 / MTI-55FNXD0)77.059.56.0£270.22R32—
14Midea MTI 15.4 kW (MOU-55FN8-RD0 / MTI-55FNXD0)77.059.56.0£270.22R32—
15Midea MCD 15.7 kW (MOU-55FN8-RD0 / MCD-55FNXD0)74.056.56.1£270.97R32—
16Midea MCD 15.7 kW (MOU-55FN8-RD0 / MCD-55FNXD0)74.056.56.1£270.97R32—
17Midea MUE 15.9 kW (MOU-55FN8-RD0 / MUE-55FNXD0)75.057.56.1£274.42R32—
18Midea MUE 15.9 kW (MOU-55FN8-RD0 / MUE-55FNXD0)75.057.56.1£274.42R32—
19Haier AC 16 kW (1U160S2SP1FB-H)72.054.56.1£276.14R32—
20Hisense AUD 16 kW (AUW175U6RW8)75.057.56.1£276.14R32—
21Haier AD 16 kW (1U160S2SP1FB-H)72.054.55.9£285.51R32—
22Midea MFM 15.5 kW (MOX630U-55HFN8-ROUTV1)74.056.55.7£286.29R32—
23Gree GMVND 16 kW (GMV-ND140PHS/D-T)——1.0£1,684.48R410A—

EPREL manufacturer-declared registrations · snapshot 25 Sep 2026 · n=23 · £ at 400 hours, low to high; noise via contract_engine MCS 020a Q=2, no barrier · updated 25 Sep 2026 · version 1.0.0 · CSV of the values on this page

How this page was calculated

If the calculated sound pressure level at all assessment positions is equal to or lower than 37.0 dB(A) then the heat pump will comply with the Permitted Development noise limit

Other lists at this capacity

Better than a best-of roundup with no figures: every row is a registered number and a link to the model card.

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