Most energy-efficient air conditioners, 3.6–5 kW (2026)

Choosing a model from the most efficient 5% instead of the least efficient 5% in this group saves about €39 a year at the EU average electricity price (0.283 €/kWh).

By energy class: A 83 · A+ 159 · A++ 1,158 · A+++ 201 · B 12 · C 1 · D 1

1. 301A++
   Mitsubishi Electric PEAD-M35JA3 / PUZ-ZM35VKA3

   3.6 kW · SEER 6.3 · 199 kWh/yr
   €56/year
2. 302A++
   Daikin ATXF25G5V1B / ATXF25G5V1B / 2AMXF40A2V1B

   4 kW · SEER 7 · 200 kWh/yr
   €57/year
3. 303A++
   Panasonic S-36PY2E5B / U-36PE2E5A

   3.6 kW · SEER 6.3 · 200 kWh/yr
   €57/year
4. 304A++
   Kältebringer KB35-12000BTUQC

   3.6 kW · SEER 6.3 · 200 kWh/yr
   €57/year
5. 305A++
   Qlima SC 4435

   3.6 kW · SEER 6.3 · 200 kWh/yr
   €57/year
6. 306A++
   Mitsubishi Electric PEAD-M35JA3 / SUZ-M35VA2

   3.6 kW · SEER 6.3 · 200 kWh/yr
   €57/year
7. 307A++
   comfee INFINI SAVE 12 LITE

   3.6 kW · SEER 6.3 · 200 kWh/yr
   €57/year
8. 308A++
   Daikin ATXF25A5V1B / ATXF25A5V1B / 2AMXF40A2V1B

   4 kW · SEER 7 · 200 kWh/yr
   €57/year
9. 309A++
   Daikin ATXF25F5V1B / ATXF25F5V1B / 2AMXF40B2V1B

   4 kW · SEER 7 · 200 kWh/yr
   €57/year
10. 310A++
    Fujitsu AOYG14KMCDN/ASYG14KMCDN

    4.2 kW · SEER 7.3 · 201 kWh/yr
    €57/year
11. 311A++
    Fuji Electric ROG14KMCDN/RSG14KMCDN

    4.2 kW · SEER 7.3 · 201 kWh/yr
    €57/year
12. 312A++
    Daikin ATXP20K3V1B / ATXP35K3V1B / 2AMXM40M3V1B

    4 kW · SEER 7 · 201 kWh/yr
    €57/year
13. 313A++
    De Dietrich 7723189 - EMSCA 35

    3.6 kW · SEER 6.3 · 201 kWh/yr
    €57/year
14. 314A++
    General AOHG14KMCDN/ASHG14KMCDN

    4.2 kW · SEER 7.3 · 201 kWh/yr
    €57/year
15. 315A++
    AUX-C-12CAC

    3.6 kW · SEER 6.2 · 201 kWh/yr
    €57/year
16. 316A+++
    Panasonic CS-Z25CKEW + CS-Z25CKEW / CU-2Z50CBE

    5 kW · SEER 8.7 · 201 kWh/yr
    €57/year
17. 317A+++
    Fuji Electric ROG18KBTA2/RSG09KGTB/RSG09KGTB

    5 kW · SEER 8.6 · 202 kWh/yr
    €57/year
18. 318A+
    Hitachi RAM-40NP2B / RAK-15QPB + RAF-25RXB

    4 kW · SEER 6.9 · 202 kWh/yr
    €57/year
19. 319A++
    Mitsubishi Electric PCA-M35KA2 / PUHZ-ZRP35VKA2

    3.6 kW · SEER 6.2 · 202 kWh/yr
    €57/year
20. 320A++
    Daikin ATXP25K3V1B / ATXP35K3V1B / 2AMXM40M3V1B

    4 kW · SEER 6.9 · 202 kWh/yr
    €57/year
21. 321A++
    Daikin ATXF25G5V1B / ATXF35G5V1B / 2AMXF40A2V1B

    4 kW · SEER 6.9 · 202 kWh/yr
    €57/year
22. 322A++
    Mitsubishi Heavy Industries SRC40ZSX-S_FDTC40VH

    4 kW · SEER 7 · 202 kWh/yr
    €57/year
23. 323A++
    Mitsubishi Heavy Industries SRC40ZSX-W1_FDTC40VH

    4 kW · SEER 7 · 202 kWh/yr
    €57/year
24. 324A++
    Panasonic CS-MTZ16TKE + CS-TZ25TKEW / CU-2TZ41TBE

    4.1 kW · SEER 7.1 · 202 kWh/yr
    €57/year
25. 325A+++
    Sylon SSDH-18K

    5 kW · SEER 8.7 · 202 kWh/yr
    €57/year
26. 326A+++
    Fujitsu AOEG18KBCA2/ASEH09KMCG/ASEH09KMCG

    5 kW · SEER 8.6 · 202 kWh/yr
    €57/year
27. 327A+++
    Fujitsu AOYG18KBTA2/ASYH09KNCA/ASYH12KNCA

    5 kW · SEER 8.6 · 202 kWh/yr
    €57/year
28. 328A++
    Daikin ATXF25A5V1B / ATXF35A5V1B / 2AMXF40A2V1B

    4 kW · SEER 6.9 · 202 kWh/yr
    €57/year
29. 329A++
    Fujitsu AOYG14LMCE/ASYG14LMCE (2021 registration)

    4 kW · SEER 6.9 · 203 kWh/yr
    €57/year
30. 330A+++
    Panasonic CS-Z50YKEA / CU-Z50YKEA

    5 kW · SEER 8.6 · 203 kWh/yr
    €57/year
31. 331A+++
    Panasonic S-3650PU3E / U-50PZH3E5

    5 kW · SEER 8.6 · 203 kWh/yr
    €57/year
32. 332A+++
    Daikin FTXM35R5V1B / FTXM42R5V1B / 2MXM50A2V1B9

    5 kW · SEER 8.6 · 203 kWh/yr
    €57/year
33. 333A+++
    Daikin FTXZ50NV1B / RXZ50NV1B

    5 kW · SEER 8.6 · 203 kWh/yr
    €57/year
34. 334A++
    Fuji Electric ROG14LMCA/RSG14LMCA

    4 kW · SEER 6.9 · 203 kWh/yr
    €57/year
35. 335A++
    Hisense 2AMW42CF99

    4 kW · SEER 6.9 · 203 kWh/yr
    €57/year
36. 336A+
    Fujitsu AOYG14LMCE/ASYG14LMCE (2019 registration)

    4 kW · SEER 6.9 · 203 kWh/yr
    €57/year
37. 337A
    General AOHG14LMCA/ASHG14LMCA

    4 kW · SEER 6.9 · 203 kWh/yr
    €57/year
38. 338A+++
    Toshiba Carrier Corporation RAS-18S4AVPG-E+RAS-B18S4KVDG-E

    5 kW · SEER 8.6 · 203 kWh/yr
    €57/year
39. 339A+++
    Daikin FTXM25N2V1B / FTXM42N2V1B / 2MXM50M3V1B9

    5 kW · SEER 8.6 · 204 kWh/yr
    €58/year
40. 340A+++
    Daikin FTXM35N2V1B / FTXM42N2V1B / 2MXM50M3V1B9

    5 kW · SEER 8.6 · 204 kWh/yr
    €58/year
41. 341A+++
    Daikin FTXM25N2V1B / FTXM25N2V1B / 3MXM52N2V1B

    5 kW · SEER 8.6 · 204 kWh/yr
    €58/year
42. 342A+++
    Daikin CTXM15R5V1B / FTXM42R5V1B / 2MXM50A2V1B9

    5 kW · SEER 8.6 · 204 kWh/yr
    €58/year
43. 343A+++
    Daikin FTXM25R5V1B / FTXM35R5V1B / 2MXM50A2V1B9

    5 kW · SEER 8.6 · 204 kWh/yr
    €58/year
44. 344A+++
    Daikin FTXM35R5V1B / FTXM35R5V1B / 2MXM50A2V1B9

    5 kW · SEER 8.6 · 204 kWh/yr
    €58/year
45. 345A+++
    Daikin FTXM42R5V1B / FTXM42R5V1B / 2MXM50A2V1B9

    5 kW · SEER 8.6 · 204 kWh/yr
    €58/year
46. 346A++
    Baxi Spa 7711433 - UE MONO LC 12000 RZGT35 R32

    3.6 kW · SEER 6.2 · 204 kWh/yr
    €58/year
47. 347A+++
    Mitsubishi Heavy Industries SCM50ZS-W_SRK25ZSX-Wx2

    5 kW · SEER 8.6 · 204 kWh/yr
    €58/year
48. 348A++
    Mitsubishi Electric MXZ-2F42VF4-E1 / MSZ-AY25VG2-E1 + MSZ-AY35VG2-E1

    4.2 kW · SEER 7.2 · 204 kWh/yr
    €58/year
49. 349A++
    AUX ALCA-H12NDR3HAA

    3.6 kW · SEER 6.2 · 204 kWh/yr
    €58/year
50. 350A++
    Olimpia Splendid OS-CENEH12EI / OS-SENEH12EI

    3.7 kW · SEER 6.4 · 204 kWh/yr
    €58/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