Most energy-efficient air conditioners, up to 2.5 kW (2026)

Choosing a model from the most efficient 5% instead of the least efficient 5% in this group saves about €21 a year at the EU average electricity price (0.283 €/kWh).

By energy class: A 108 · A+ 45 · A++ 429 · A+++ 172 · B 3 · C 1 · D 4

1. 301A++
   LG DM09RP UL2/DM09RP NSJ

   2.5 kW · SEER 7.7 · 114 kWh/yr
   €32/year
2. 302A++
   Hitachi RAC-18WEF / RAK-18REF

   2 kW · SEER 6.1 · 115 kWh/yr
   €33/year
3. 303A++
   Hitachi RAC-25WPC / RAK-25RPC

   2.5 kW · SEER 7.6 · 115 kWh/yr
   €33/year
4. 304A
   Hitachi RAC-25WPB / RAK-25RPB

   2.5 kW · SEER 7.6 · 115 kWh/yr
   €33/year
5. 305A++
   Daikin FTX20J3V1B / RX20K2V1B

   2 kW · SEER 6.1 · 115 kWh/yr
   €33/year
6. 306A++
   Panasonic CS-LZ25TKE / CU-LZ25TKE

   2.5 kW · SEER 7.6 · 115 kWh/yr
   €33/year
7. 307A++
   Panasonic CS-TE20TKEW / CU-TE20TKE

   2 kW · SEER 6.1 · 115 kWh/yr
   €33/year
8. 308A++
   Carrier 38WHSS020ATA0TEE+40WHSW020DTA0TEE

   2 kW · SEER 6.1 · 115 kWh/yr
   €33/year
9. 309A++
   Toshiba Carrier Corporation RAS-07J2AVG-E+RAS-B07J2KVG-E

   2 kW · SEER 6.1 · 115 kWh/yr
   €33/year
10. 310A++
    Toshiba Carrier Corporation RAS-07B2AVG-E+RAS-B07B2KVG-E

    2 kW · SEER 6.1 · 115 kWh/yr
    €33/year
11. 311A++
    Panasonic CS-NZ25VKE / CU-NZ25VKE

    2.5 kW · SEER 7.5 · 117 kWh/yr
    €33/year
12. 312A++
    GREE GWH07AFAXA-K6DNA3A

    2.2 kW · SEER 6.6 · 117 kWh/yr
    €33/year
13. 313A++
    Heiwa HMES2-20P-V1 / HMIS3-20-V1

    2.2 kW · SEER 6.6 · 117 kWh/yr
    €33/year
14. 314A++
    Azuri AZI-WN20VA/I - AZI-WN20VA/O

    2.2 kW · SEER 6.6 · 117 kWh/yr
    €33/year
15. 315A++
    Airmat PYRENAIR MURALE 20

    2.2 kW · SEER 6.6 · 117 kWh/yr
    €33/year
16. 316A++
    Hitachi RAC-DJ25PHAE / RAK-DJ25PHAE

    2.5 kW · SEER 7.5 · 117 kWh/yr
    €33/year
17. 317A+
    Daikin FTXB20C2V1B / RXB20C2V1B

    2 kW · SEER 6 · 117 kWh/yr
    €33/year
18. 318A++
    Daikin ATXS25K3V1B / ARXS25L3V1B

    2.5 kW · SEER 7.5 · 117 kWh/yr
    €33/year
19. 319A++
    Cooper&Hunter CH-S07FTXQ2-NG

    2.2 kW · SEER 6.6 · 117 kWh/yr
    €33/year
20. 320A++
    Tosot Pular-GWH07AGA

    2.2 kW · SEER 6.6 · 117 kWh/yr
    €33/year
21. 321A++
    Fujitsu AOYG09KMTA/ASYG09KMTB

    2.5 kW · SEER 7.4 · 118 kWh/yr
    €33/year
22. 322A++
    GREE GWH07QAXA-K6DNC2Z

    2.2 kW · SEER 6.5 · 118 kWh/yr
    €33/year
23. 323A++
    Fuji Electric ROG09KETA/RSG09KETF

    2.5 kW · SEER 7.4 · 118 kWh/yr
    €33/year
24. 324A++
    Fuji Electric ROH09KNCA/RSH09KNCA

    2.5 kW · SEER 7.4 · 118 kWh/yr
    €33/year
25. 325A++
    General AOHH09KNCA/ASHH09KNCA

    2.5 kW · SEER 7.4 · 118 kWh/yr
    €33/year
26. 326A++
    Samsung AR50F09C1AHN/AR50F09C1AHX

    2.5 kW · SEER 7.4 · 118 kWh/yr
    €33/year
27. 327A++
    Panasonic CS-NZ25TKE / CU-NZ25TKE

    2.5 kW · SEER 7.4 · 118 kWh/yr
    €33/year
28. 328A++
    General AOHG09KMTA/ASHG09KMTB

    2.5 kW · SEER 7.4 · 118 kWh/yr
    €33/year
29. 329A++
    Fujitsu AOEH09KNCA/ASEH09KNCA

    2.5 kW · SEER 7.4 · 118 kWh/yr
    €33/year
30. 330A++
    Mitsubishi Heavy Industries SRC25ZS-W2_SRF25ZS-W

    2.5 kW · SEER 7.4 · 119 kWh/yr
    €34/year
31. 331A++
    Daikin FVXM25FV1B / RXM25N5V1B9

    2.5 kW · SEER 7.2 · 120 kWh/yr
    €34/year
32. 332A++
    Panasonic CS-TZ25CKEW / CU-TZ25CKE

    2.5 kW · SEER 7.3 · 120 kWh/yr
    €34/year
33. 333A+
    Hitachi RAC-18WEC / RAK-18PEC

    2 kW · SEER 5.8 · 121 kWh/yr
    €34/year
34. 334A
    Hitachi RAC-18WPA / RAK-18PPA

    2 kW · SEER 5.8 · 121 kWh/yr
    €34/year
35. 335A
    Hitachi RAC-18WEA / RAK-18PEA

    2 kW · SEER 5.8 · 121 kWh/yr
    €34/year
36. 336A
    Hitachi RAC-18WEB / RAK-18PEB

    2 kW · SEER 5.8 · 121 kWh/yr
    €34/year
37. 337A++
    Daikin FTXP25M5V1B9 / RXP25N5V1B

    2.5 kW · SEER 7.2 · 121 kWh/yr
    €34/year
38. 338A++
    Toshiba Carrier Corporation RAS-10J2AVSG-E1+RAS-B10J2FVG-E

    2.5 kW · SEER 7.2 · 121 kWh/yr
    €34/year
39. 339A++
    KlimaWorld NEXA S5 E Inverter 9

    2.5 kW · SEER 7.5 · 121 kWh/yr
    €34/year
40. 340A++
    Bosch 7733701471

    2.5 kW · SEER 7.2 · 122 kWh/yr
    €35/year
41. 341A++
    Buderus 7739618410

    2.5 kW · SEER 7.2 · 122 kWh/yr
    €35/year
42. 342A++
    IVT 7733701475

    2.5 kW · SEER 7.2 · 122 kWh/yr
    €35/year
43. 343A++
    Hisense HC20LC00G / AC20LC00W

    2.2 kW · SEER 6.3 · 122 kWh/yr
    €35/year
44. 344A++
    Fujitsu AOYG09LUCB/ASYG09LUCA (2021 registration)

    2.5 kW · SEER 7.1 · 123 kWh/yr
    €35/year
45. 345A++
    Panasonic CS-TZ25ZKEW / CU-TZ25ZKE

    2.5 kW · SEER 7.1 · 123 kWh/yr
    €35/year
46. 346A++
    Daikin FTXTP25K3V1B / RXTP25N2V1B9

    2.5 kW · SEER 7.1 · 123 kWh/yr
    €35/year
47. 347A++
    Daikin FTXTP25K3V1B / RXTP25R2V1B

    2.5 kW · SEER 7.1 · 123 kWh/yr
    €35/year
48. 348A++
    Fuji Electric ROG09LUCB/RSG09LUCA

    2.5 kW · SEER 7.1 · 123 kWh/yr
    €35/year
49. 349A++
    Mitsubishi Heavy Industries SRC25ZMX-S_SRF25ZMX-S

    2.5 kW · SEER 7.2 · 123 kWh/yr
    €35/year
50. 350A
    General AOHG09LUCB/ASHG09LUCA

    2.5 kW · SEER 7.1 · 123 kWh/yr
    €35/year

Ranked by annual energy consumption; running cost at the EU average household price. Open a model to see the cost in your country. Methodology