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Multi-splits for 2 rooms at 3.5 kW (12,000 BTU) in the UK: 41 models

Toshiba RASB 3.5 kW (RAS-13S4AVPG-E / RAS-B13S4KVDG-E) is the quietest of these 41 2-room multi-splits at ≈58.0 dB(A) outside. If one outdoor unit will serve 2 rooms, check the pass distance before the brand.

computed

bar · 3.5 kW (12,000 BTU) kW · Multi-split with 2 indoor units, quietest outside first · n=41 · 25 Sep 2026

Ranked models

41 models match this list. Multi-split with 2 indoor units, quietest outside first.

3.5 kW (12,000 BTU) · Multi-split with 2 indoor units, quietest outside first. £ per summer uses 26.32p/kWh at 400 hours.
RankModelLwA dB(A)3 m dB(A)SEER£ at 400 hRefrigerantObserved price
1Toshiba RASB 3.5 kW (RAS-13S4AVPG-E / RAS-B13S4KVDG-E)58.040.59.7£37.99R32—
2Toshiba RASB 3.5 kW (RAS-13J2AVSG-E1)59.041.58.6£42.85R32—
3Daikin CTXM+FTXM 3.5 kW (2MXM40A)60.042.58.6£42.85R32—
4Daikin CTXM+FTXM 3.5 kW (2MXM40M)60.042.58.6£42.85R32—
5Daikin CTXM+FTXM 3.5 kW (2MXM40N)60.042.58.6£42.85R32—
6Daikin CTXM+FTXM 3.5 kW (2MXM50A / CTXM15N2V1B)60.042.58.7£42.35R32—
7Daikin CTXM+FTXM 3.5 kW (2MXM50A / CTXM15N2V1B)60.042.58.8£41.87R32—
8Daikin CTXM+FTXM 3.5 kW (2MXM50M)60.042.58.7£42.35R32—
9Daikin CTXM+FTXM 3.5 kW (2MXM50N)60.042.58.7£42.35R32—
10Daikin CTXM+FTXP 3.5 kW (2MXM40A)60.042.57.9£46.64R32—
11Daikin CTXM+FTXP 3.5 kW (2MXM40M)60.042.57.9£46.64R32—
12Daikin CTXM+FTXP 3.5 kW (2MXM40N)60.042.57.9£46.64R32—
13Daikin CTXM+FTXP 3.5 kW (2MXM50A)60.042.57.9£46.64R32—
14Daikin CTXM+FTXP 3.5 kW (2MXM50M)60.042.57.9£46.64R32—
15Daikin CTXM+FTXP 3.5 kW (2MXM50N)60.042.57.9£46.64R32—
16Mitsubishi Electric AP 3.3 kW (MXZ-2F33VF-E1)60.042.55.8£59.90R32—
17Mitsubishi Electric MSZAP+MSZLN 3.3 kW (MXZ-2F33VF2-E1)60.042.56.1£56.95R32—
18Mitsubishi Electric MSZAP+MSZLN 3.3 kW (MXZ-2F33VF3-E1)60.042.56.8£51.09R32—
19Mitsubishi Electric MSZAP+MSZLN 3.3 kW (MXZ-2F33VF3-E2)60.042.56.1£56.95R32—
20Mitsubishi Electric MSZAP+MSZLN 3.3 kW (MXZ-2F33VF4)60.042.56.1£56.95R32—
21Mitsubishi Electric MSZAP+MSZLN 3.3 kW (MXZ-2F33VF-E1)60.042.56.1£56.95R32—
22Mitsubishi Electric MSZAY+MSZLN 3.3 kW (MXZ-2F33VF4)60.042.56.1£56.95R32—
23Mitsubishi Electric MSZAY+MSZLN 3.3 kW (MXZ-2F33VF5)60.042.56.1£56.95R32—
24Toshiba RAS 3.5 kW (RAS-35N4AVPG-ND)61.043.58.9£41.40R32—
25Toshiba RAS 3.5 kW (RAS-35S4AVPG-ND)61.043.59.5£38.79R32—
26Toshiba RASB 3.3 kW (RAS-13E2AVG-E)61.043.57.0£49.63R32—
27Argo ECOLIGHT 3.2 kW (ECOLIGHT12000UE)62.044.56.1£55.23R32—
28Comfee CFAF 3.8 kW (CF-AF12AIUCF-AF12AOU)63.045.56.2£64.53R32—
29Comfee CSAFBU 3.6 kW (COX133-12HFN8D0)63.045.56.1£62.13R32—
30Gree GWH 3.5 kW (GWH12AWCXD-K6DNA1D/O / GWH12AWCXD-K6DNA4D/I)63.045.58.5£43.35R32—
31Mitsubishi Electric MSZEF+MSZSF 3.3 kW (MXZ-2D33VA-E4)63.045.55.5£63.17R410A£394.99
32Panasonic CSMZ+CSZ 3.5 kW (CU-2Z35TBE)63.045.58.5£43.35R32—
33Toshiba RAS 3.5 kW (RAS-35PAVSG-ND)63.045.56.8£54.19R32—
34Toshiba RASB 3.3 kW (RAS-13B2AVG-E / RAS-B13B2KVG-E)63.045.56.1£56.95R32—
35Toshiba RASB 3.3 kW (RAS-13B2AVG-E / RAS-B13B2KVG-E1)63.045.56.3£55.15R32—
36Toshiba RASB 3.3 kW (RAS-13J2AVG-E)63.045.56.1£56.95R32—
37Toshiba RASB 3.5 kW (RAS-13J2AVRG-E)63.045.56.5£56.69R32—
38Toshiba RASB 3.5 kW (RAS-13PAVSG-E)63.045.56.4£57.58R32—
39Toshiba RAVHM 3.6 kW (RAV-GM401ATP-E)64.046.55.8£65.35R32—
40Toshiba RAVHM 3.6 kW (RAV-GM402ATP-E)64.046.56.7£56.57R32—
41Toshiba RASB 3.3 kW (RAS-13BAVG-E1)65.047.55.6£62.04R32—

EPREL manufacturer-declared registrations · snapshot 25 Sep 2026 · n=41 · Multi-split with 2 indoor units, quietest outside first; 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

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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