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Highest-SEER 16 kW (≈55,000 BTU) air conditioners in the UK: 23 models

Lennox LXAIDHM 15.3 kW (LXA-RHMI55NO(G)) has the highest SEER here at 6.3. If the neighbour-window test matters more than efficiency, check outdoor sound power before SEER.

computed

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

Ranked models

23 models match this list. SEER, high to low.

16 kW (≈55,000 BTU) · SEER, high to low. £ 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—
6Haier AC 16 kW (1U160S2SP1FB-H)72.054.56.1£276.14R32—
7Hisense AUD 16 kW (AUW175U6RW8)75.057.56.1£276.14R32—
8Lennox LXAITHM 15.5 kW (LXA-RHMI55NO(G))73.055.56.1£267.51R32—
9Midea MCD 15.7 kW (MOU-55FN8-RD0 / MCD-55FNXD0)74.056.56.1£270.97R32—
10Midea MCD 15.7 kW (MOU-55FN8-RD0 / MCD-55FNXD0)74.056.56.1£270.97R32—
11Midea MTI 15.3 kW (MOE30U-55HFN8-R(GA) / MTI-55HWFNX(GA))74.056.56.1£264.06R32—
12Midea MTI 15.3 kW (MOE30U-55HFN8-R(GA) / MTI-55HWFNX(GA))74.056.56.1£264.06R32—
13Midea MUE 15.5 kW (MOE30U-55HFN8-R(GA) / MUE-55HRFNX(GA))73.055.56.1£267.51R32—
14Midea MUE 15.5 kW (MOE30U-55HFN8-R(GA) / MUE-55HRFNX(GA))73.055.56.1£267.51R32—
15Midea MUE 15.9 kW (MOU-55FN8-RD0 / MUE-55FNXD0)75.057.56.1£274.42R32—
16Midea MUE 15.9 kW (MOU-55FN8-RD0 / MUE-55FNXD0)75.057.56.1£274.42R32—
17Nørdis NIF 15.5 kW (NOA-55-3)73.055.56.1£267.51R32—
18Nørdis / Nordis NIF 15.5 kW (NOA-55-3)73.055.56.1£267.51R32—
19Midea MTI 15.4 kW (MOU-55FN8-RD0 / MTI-55FNXD0)77.059.56.0£270.22R32—
20Midea MTI 15.4 kW (MOU-55FN8-RD0 / MTI-55FNXD0)77.059.56.0£270.22R32—
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 · SEER, high to low; 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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