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Cheapest 2 kW (7,000 BTU) air conditioners to run in the UK: 131 models

Mitsubishi Heavy Industries SRK 2 kW (SRC20ZSX-W) is the lowest 400-hour summer cost here at ≈£21.06 at 26.32p/kWh. If the unit sits close to a neighbour, a quieter model can be worth the extra running cost.

computed

bar · 2 kW (7,000 BTU) kW · £ at 400 hours, low to high · n=131 · 25 Sep 2026

Ranked models

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

2 kW (7,000 BTU) · £ at 400 hours, low to high. £ per summer uses 26.32p/kWh at 400 hours.
Rank	Model	LwA dB(A)	3 m dB(A)	SEER	£ at 400 h	Refrigerant	Observed price
1	Mitsubishi Heavy Industries SRK 2 kW (SRC20ZSX-W)	56.0	38.5	10.0	£21.06	R32	—
2	Mitsubishi Heavy Industries SRK 2 kW (SRC20ZSX-WA)	56.0	38.5	10.0	£21.06	R32	—
3	Fujitsu ASEH 2 kW (AOEH07KGCG)	56.0	38.5	9.8	£21.49	R32	—
4	Fujitsu ASEH 2 kW (AOEH07KJCA)	55.0	37.5	9.6	£21.93	R32	—
5	Fujitsu ASYH 2 kW (AOYH07KJCA)	55.0	37.5	9.6	£21.93	R32	—
6	Mitsubishi Heavy Industries SRK 2 kW (SRC20ZTX-WA)	55.0	37.5	9.6	£21.93	R32	—
7	Daikin Perfera 2 kW (RXM20A / FTXM20A2V1B)	58.0	40.5	9.5	£22.16	R32	—
8	Mitsubishi Heavy Industries SRK 2 kW (SRC20ZSX-S)	56.0	38.5	9.5	£22.16	R410A	—
9	Mitsubishi Heavy Industries SRK 2 kW (SRC20ZT-W)	55.0	37.5	9.5	£22.16	R32	—
10	Mitsubishi Heavy Industries SRK 2 kW (SRC20ZT-WB)	55.0	37.5	9.5	£22.16	R32	—
11	Bosch 7733702573 2 kW	59.0	41.5	9.4	£22.40	R32	—
12	Samsung WindFree Avant 2 kW (AR70F07)	59.0	41.5	9.0	£23.40	R32	£347.99
13	Samsung WindFree Avant 2 kW (AR70H07)	59.0	41.5	9.0	£23.40	R32	—
14	Daikin Emura 2 kW (RXJ20A)	59.0	41.5	8.8	£23.93	R32	£2,007.99
15	Daikin Stylish 2 kW (RXA20A)	59.0	41.5	8.8	£23.93	R32	£1,817.99
16	Daikin Perfera 2 kW (RXM20A / FTXM20R2V1B)	58.0	40.5	8.7	£24.20	R32	—
17	Daikin Perfera 2 kW (RXM20N / FTXM20N2V1B)	59.0	41.5	8.7	£24.20	R32	—
18	Daikin Perfera 2 kW (RXM20R / FTXM20R5V1B)	59.0	41.5	8.7	£24.20	R32	—
19	Daikin Perfera 2 kW (RXM20R / FTXM20R5V1B)	59.0	41.5	8.7	£24.20	R32	—
20	Daikin Perfera 2 kW (RXM20R / FTXM20A2V1B)	59.0	41.5	8.7	£24.20	R32	—
21	Mitsubishi Electric AP 2 kW (MUZ-AP20VG)	59.0	41.5	8.6	£24.48	R32	—
22	Mitsubishi Electric Elegance 2 kW (MUZ-AY20VG)	59.0	41.5	8.6	£24.48	R32	£812.99
23	Mitsubishi Electric Elegance 2 kW (MUZ-AY20VG2)	59.0	41.5	8.6	£24.48	R32	—
24	Carrier 2 kW (38WHSH020A1A0TEE)	57.0	39.5	8.5	£24.77	R32	—
25	Daikin Perfera 2 kW (RXM20M)	59.0	41.5	8.5	£24.77	R32	—
26	Daikin Perfera 2 kW (RXM20N / FTXM20M2V1B)	59.0	41.5	8.5	£24.77	R32	—
27	Fujitsu Wall 2 kW (AOYG07KGCA)	61.0	43.5	8.5	£24.77	R32	—
28	Hitachi RAK 2 kW (RAC-18WPD)	58.0	40.5	8.5	£24.77	R32	—
29	Hitachi RAK 2 kW (RAC-18WPE)	58.0	40.5	8.5	£24.77	R32	—
30	Hitachi RAKVJ 2 kW (RAC-VJ18PHAE)	58.0	40.5	8.5	£24.77	R32	—
31	Mitsubishi Heavy Industries SRK 2 kW (SRC20ZS-W)	56.0	38.5	8.5	£24.77	R32	—
32	Mitsubishi Heavy Industries SRK 2 kW (SRC20ZS-WA)	56.0	38.5	8.5	£24.77	R32	—
33	Toshiba RASB 2 kW (RAS-07J2AVSG-E)	57.0	39.5	8.5	£24.77	R32	—
34	Toshiba RASB 2 kW (RAS-07J2AVSG-E1)	57.0	39.5	8.5	£24.77	R32	—
35	Fujitsu ASEH 2 kW (AOEH07KMCG)	61.0	43.5	8.4	£25.07	R32	—
36	Panasonic Etherea 2.1 kW (CU-Z20CKE / CS-Z20CKEW)	60.0	42.5	8.7	£25.41	R32	—
37	Panasonic Etherea 2.1 kW (CU-Z20CKE / CS-XZ20CKEW)	60.0	42.5	8.7	£25.41	R32	—
38	Hitachi RAK 1.8 kW (RAC-18WSB)	60.0	42.5	7.4	£25.61	R410A	—
39	Hitachi RAK 1.8 kW (RAC-18WSA)	60.0	42.5	7.4	£25.61	R410A	—
40	Fujitsu Wall 2 kW (AOYG07KGC)	61.0	43.5	8.1	£26	R32	—
41	Mitsubishi Electric MSZBT 2 kW (MUZ-BT20VG)	63.0	45.5	8.1	£26	R32	—
42	Mitsubishi Electric MSZBT 2 kW (MUZ-BT20VG2)	63.0	45.5	8.1	£26	R32	—
43	Hitachi RAK 1.8 kW (RAC-18WSPA)	60.0	42.5	7.2	£26.32	R410A	—
44	Gree GWH 2.2 kW (GWH07AUCXB-K6DNA1A/O)	61.0	43.5	8.6	£26.93	R32	—
45	Fujitsu ASEH 2 kW (AOEH07KNCA)	53.0	35.5	7.8	£26.99	R32	—
46	Mitsubishi Heavy Industries SRK 2 kW (SRC20ZS-S)	57.0	39.5	7.8	£26.99	R410A	—
47	Panasonic Etherea 2.1 kW (CU-Z20XKE / CS-XZ20XKEW)	60.0	42.5	8.1	£27.29	R32	£929.99
48	Panasonic Etherea 2.1 kW (CU-Z20XKE / CS-Z20XKEW)	60.0	42.5	8.1	£27.29	R32	—
49	Samsung AR50 2 kW (AR50F07)	60.0	42.5	7.6	£27.71	R32	£223.99
50	Hitachi RAKDJ 2 kW (RAC-DJ18PHAE)	59.0	41.5	7.5	£28.07	R32	—
51	Daikin FTXS 2 kW (RXS20L)	59.0	41.5	7.4	£28.45	R410A	—
52	Fujitsu ASEG 2 kW (AOEG07KETA)	61.0	43.5	7.4	£28.45	R32	—
53	Fujitsu Wall 2 kW (AOYG07KETA)	61.0	43.5	7.4	£28.45	R32	—
54	Fujitsu Wall 2 kW (AOYG07KMCC)	61.0	43.5	7.4	£28.45	R32	—
55	Fujitsu Wall 2 kW (AOYG07KMTA)	61.0	43.5	7.4	£28.45	R32	—
56	Midea CB 2.1 kW (MOM-07NXD0)	62.0	44.5	7.6	£29.09	R32	—
57	Daikin Comfora 2 kW (RXP20N / FTXP20M5V1B9)	61.0	43.5	7.2	£29.24	R32	—
58	Daikin Comfora 2 kW (RXP20N / FTXP20N5V1B9)	60.0	42.5	7.2	£29.24	R32	£1,014.99
59	Fujitsu Wall 2 kW (AOYG07LUCA)	58.0	40.5	7.2	£29.24	R410A	—
60	Panasonic Etherea 2.1 kW (CU-Z20TKE / CS-XZ20TKEW)	60.0	42.5	7.5	£29.48	R32	—
61	Panasonic Etherea 2.1 kW (CU-Z20TKE / CS-Z20TKEW)	60.0	42.5	7.5	£29.48	R32	—
62	Panasonic Etherea 2.1 kW (CU-Z20VKE / CS-XZ20VKEW)	60.0	42.5	7.5	£29.48	R32	—
63	Panasonic Etherea 2.1 kW (CU-Z20VKE / CS-Z20VKEW)	60.0	42.5	7.5	£29.48	R32	—
64	Fujitsu ASEH 2 kW (AOEH07KLTA / ASEH07KLTA)	56.0	38.5	7.1	£29.66	R32	—
65	Fujitsu ASEH 2 kW (AOEH07KLTA / ASEH07KLTBL)	56.0	38.5	7.1	£29.66	R32	—
66	Hitachi RAK 2 kW (RAC-18WPB / RAK-18RPB)	60.0	42.5	7.0	£30.08	R410A	—
67	Hitachi RAK 2 kW (RAC-18WPB / RAK-18PPB)	60.0	42.5	7.0	£30.08	R410A	—
68	Hitachi RAK 2 kW (RAC-18WPC)	59.0	41.5	7.0	£30.08	R410A	—
69	Panasonic TZ 2 kW (CU-TZ20CKE)	61.0	43.5	7.0	£30.08	R32	—
70	Panasonic TZ 2 kW (CU-TZ20WKE)	61.0	43.5	7.0	£30.08	R32	£654.99
71	Panasonic TZ 2 kW (CU-TZ20ZKE)	61.0	43.5	7.0	£30.08	R32	—
72	Daikin ATXP 2 kW (ARXP20M / ATXP20N5V1B)	60.0	42.5	6.9	£30.52	R32	—
73	Daikin ATXP 2 kW (ARXP20N / ATXP20M5V1B)	61.0	43.5	6.9	£30.52	R32	—
74	Daikin ATXP 2 kW (ARXP20N / ATXP20M5V1B)	60.0	42.5	6.9	£30.52	R32	—
75	Toshiba RASB 2 kW (RAS-07E2AVG-E)	60.0	42.5	6.9	£30.52	R32	—
76	Daikin ATXP 2 kW (ARXP20K)	60.0	42.5	6.8	£30.96	R32	—
77	Daikin ATXP 2 kW (ARXP20L)	60.0	42.5	6.8	£30.96	R32	—
78	Daikin ATXP 2 kW (ARXP20M / ATXP20M5V1B)	60.0	42.5	6.8	£30.96	R32	—
79	Daikin Comfora 2 kW (RXP20K)	60.0	42.5	6.8	£30.96	R32	—
80	Daikin Comfora 2 kW (RXP20L)	60.0	42.5	6.8	£30.96	R32	—
81	Daikin Comfora 2 kW (RXP20M)	60.0	42.5	6.8	£30.96	R32	—
82	Fujitsu Wall 2 kW (AOYG07LMCA)	58.0	40.5	6.8	£30.96	R410A	—
83	Fujitsu Wall 2 kW (AOYG07LMCE)	58.0	40.5	6.8	£30.96	R410A	—
84	Panasonic TZ 2 kW (CU-TZ20TKE-1)	61.0	43.5	6.8	£30.96	R32	—
85	Midea EF 2.1 kW (MX0-07RD1)	61.0	43.5	7.1	£31.14	R32	—
86	Panasonic CSE 2.1 kW (CU-E7SKE)	60.0	42.5	7.1	£31.14	R410A	—
87	Panasonic CSXE 2.1 kW (CU-E7SKE)	60.0	42.5	7.1	£31.14	R410A	—
88	Daikin FTX 2 kW (RX20K)	60.0	42.5	6.7	£31.43	R410A	—
89	Fujitsu Wall 2 kW (AOYG07KPCA)	57.0	39.5	6.7	£31.43	R32	—
90	Fujitsu Wall 2 kW (AOYG07LLCC)	61.0	43.5	6.7	£31.43	R410A	—
91	Fujitsu Wall 2 kW (AOYG07LLCE)	61.0	43.5	6.7	£31.43	R410A	—
92	Mitsubishi Heavy Industries LMK 2 kW (LMC07Z7-W)	57.0	39.5	6.7	£31.43	R32	—
93	Mitsubishi Heavy Industries SRK 2 kW (SRC20ZTL-W)	57.0	39.5	6.7	£31.43	R32	—
94	Daikin ATX 2 kW (ARX20K)	60.0	42.5	6.6	£31.90	R410A	—
95	Daikin FTXC 2.1 kW (RXC20D)	58.0	40.5	6.9	£32.04	R32	—
96	Daikin Sensira 2 kW (RXF20D / FTXF20D5V1B)	60.0	42.5	6.5	£32.39	R32	—
97	Daikin Sensira 2 kW (RXF20D / FTXF20E5V1B)	60.0	42.5	6.5	£32.39	R32	—
98	Daikin Sensira 2 kW (RXF20E)	60.0	42.5	6.5	£32.39	R32	—
99	Daikin Sensira 2 kW (RXF20F)	60.0	42.5	6.5	£32.39	R32	—
100	Panasonic CSRZ 2 kW (CU-RZ20WKE)	61.0	43.5	6.5	£32.39	R32	—
101	Daikin ATXC 2.1 kW (ARXC20B)	58.0	40.5	6.8	£32.51	R32	—
102	Daikin ATXC 2.1 kW (ARXC20C)	58.0	40.5	6.8	£32.51	R32	—
103	Daikin ATXC 2.1 kW (ARXC20D)	58.0	40.5	6.8	£32.51	R32	—
104	Daikin ATXC 2.1 kW (ARXC20E)	58.0	40.5	6.8	£32.51	R32	—
105	Daikin ATXF 2 kW (ARXF20D / ATXF20C5V1B)	60.0	42.5	6.4	£32.90	R32	—
106	Daikin ATXF 2 kW (ARXF20D / ATXF20E5V1B)	60.0	42.5	6.4	£32.90	R32	—
107	Daikin ATXF 2 kW (ARXF20E)	60.0	42.5	6.4	£32.90	R32	—
108	Daikin ATXF 2 kW (ARXF20F)	60.0	42.5	6.4	£32.90	R32	—
109	Panasonic CSRZ 2 kW (CU-RZ20VKE)	61.0	43.5	6.4	£32.90	R32	—
110	Carrier 2 kW (38WHSM020A1A0TEE)	60.0	42.5	6.2	£33.96	R32	—
111	Daikin Sensira 2 kW (RXF20A)	60.0	42.5	6.2	£33.96	R32	£592.99
112	Daikin Sensira 2 kW (RXF20B)	60.0	42.5	6.2	£33.96	R32	—
113	Daikin Sensira 2 kW (RXF20C)	60.0	42.5	6.2	£33.96	R32	—
114	Daikin ATXF 2 kW (ARXF20A)	60.0	42.5	6.1	£34.52	R32	—
115	Daikin ATXF 2 kW (ARXF20C)	60.0	42.5	6.1	£34.52	R32	—
116	Hitachi RAK 2 kW (RAC-18WED)	59.0	41.5	6.1	£34.52	R32	—
117	Panasonic CSTE 2 kW (CU-TE20TKE)	61.0	43.5	6.1	£34.52	R410A	—
118	Toshiba RASB 2 kW (RAS-07B2AVG-E)	62.0	44.5	6.1	£34.52	R32	—
119	Toshiba RASB 2 kW (RAS-07J2AVG-E)	61.0	43.5	6.1	£34.52	R32	—
120	Daikin FTXB 2 kW (RXB20C)	60.0	42.5	6.0	£35.09	R410A	—
121	Gree GWH 2.2 kW (GWH07AGA-K6DNA1A/O)	60.0	42.5	6.6	£35.09	R32	—
122	Gree GWH 2.2 kW (GWH07QAXA-K6DNC2Z/O)	60.0	42.5	6.5	£35.63	R32	—
123	Hitachi RAK 2 kW (RAC-18WEB)	60.0	42.5	5.8	£36.30	R410A	—
124	Hitachi RAK 2 kW (RAC-18WEA)	60.0	42.5	5.8	£36.30	R410A	—
125	Hitachi RAK 2 kW (RAC-18WEC)	59.0	41.5	5.8	£36.30	R410A	—
126	Hitachi RAK 2 kW (RAC-18WPA)	60.0	42.5	5.8	£36.30	R410A	—
127	Hisense HC 2.2 kW (AC20LC00)	63.0	45.5	6.3	£36.76	R32	—
128	Hisense HC 2.2 kW (AC20LC0E)	63.0	45.5	6.3	£36.76	R32	—
129	Toshiba RASB 2 kW (RAS-07BAVG-E)	63.0	45.5	5.6	£37.60	R32	—
130	LN Distribution 2.2 kW	58.0	40.5	3.2	£72.38	—	—
131	Argo 2 kW	—	—	2.6	£80.98	R290	—

EPREL manufacturer-declared registrations · snapshot 25 Sep 2026 · n=131 · £ 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

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