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. 51A+++
   Hitachi RAM-40NP2E / RAK-15QPE + RAK-15QPE

   4 kW · SEER 8.5 · 164 kWh/yr
   €46/year
2. 52A+++
   Hitachi RAM-40NP2E / RAK-15QPE + RAK-25RPE

   4 kW · SEER 8.6 · 164 kWh/yr
   €46/year
3. 53A+++
   Daikin CTXM15N2V1B / FTXM25N2V1B / 2MXM40M4V1B

   4 kW · SEER 8.6 · 164 kWh/yr
   €46/year
4. 54A+++
   Daikin CTXM15R2V1B / FTXM25R2V1B / 3MXM40N2V1B9

   4 kW · SEER 8.5 · 164 kWh/yr
   €46/year
5. 55A++
   Daikin FTXJ20MV1BW / FTXJ20MV1BS / 3MXM40N2V1B

   4 kW · SEER 7.6 · 164 kWh/yr
   €46/year
6. 56A+++
   Samsung AR70F07CAAWN x 2 / AJ040TXJ2KG

   4 kW · SEER 8.5 · 164 kWh/yr
   €46/year
7. 57A+++
   Daikin FTXM20N2V1B / FTXM20N2V1B / 3MXM40A2V1B

   4 kW · SEER 8.5 · 164 kWh/yr
   €46/year
8. 58A+++
   Daikin CTXM15N2V1B / CTXM15N2V1B / CTXM15N2V1B / 3MXM40A2V1B9

   4 kW · SEER 8.6 · 164 kWh/yr
   €46/year
9. 59A+++
   Daikin FTXM20N2V1B / FTXM20N2V1B / 2MXM40A2V1B

   4 kW · SEER 8.5 · 164 kWh/yr
   €46/year
10. 60A+++
    Daikin CTXM15N2V1B / FTXM25N2V1B / 2MXM40A2V1B

    4 kW · SEER 8.6 · 164 kWh/yr
    €46/year
11. 61A+++
    Hitachi RAM-40NP2E / RAK-15QPE + RAK-18RPE

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
12. 62A+++
    Daikin ATXM20N2V1B / ATXM20N2V1B / 3AMXM52M3V1B

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
13. 63A+++
    Daikin FTXM20N2V1B / FTXM25N2V1B / 2MXM40M4V1B

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
14. 64A+++
    Daikin ATXM20N2V1B / ATXM20N2V1B / 2AMXM40M4V1B

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
15. 65A+++
    Daikin FTXM20M2V1B / FTXM20M2V1B / 3MXM40N2V1B

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
16. 66A+++
    Daikin ATXM20N2V1B / ATXM25N2V1B / 2AMXM40M4V1B

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
17. 67A+++
    Daikin FTXM20M2V1B / FTXM20M2V1B / 2MXM40M3V1B

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
18. 68A+++
    Mitsubishi Heavy Industries SRC40ZSX-S_FDT40VH

    4 kW · SEER 8.6 · 165 kWh/yr
    €47/year
19. 69A+++
    Haier AS25S2SJ1FA-3 / AS25S2SJ1FA-3 / 2U40S2SM1FA

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
20. 70A+++
    Haier AS25S2SJ1FA-3 / AS35S2SJ1FA-3 / 2U40S2SM1FA

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
21. 71A+++
    Haier AS25SBBHRA-MW, AS25SBBHRA-MW/2U40MEAFRA-H

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
22. 72A+++
    Daikin ATXM20A2V1B / ATXM25A2V1B / 2AMXM40M4V1B9

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
23. 73A+++
    Daikin ATXM20A2V1B / ATXM20A2V1B / 2AMXM40M4V1B9

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
24. 74A+++
    Atlantic 872191

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
25. 75A+++
    Haier AS25PBBHRA-PA / AS35PBBHRA-PA / 2U40MS3FRA

    4 kW · SEER 8.5 · 165 kWh/yr
    €47/year
26. 76A++
    Panasonic S-3650PK3E / U-36PZ3E5

    3.6 kW · SEER 7.6 · 166 kWh/yr
    €47/year
27. 77A++
    Hitachi RAM-40NP2E / RAK-18RPE + RAK-18RPE

    4 kW · SEER 8.4 · 166 kWh/yr
    €47/year
28. 78A+++
    LG MU2R15 U13/MJ07PC NSJ

    4.1 kW · SEER 8.6 · 167 kWh/yr
    €47/year
29. 79A++
    Hitachi RAM-40NP2E / RAK-15QPE + RAK-35RPE

    4 kW · SEER 8.4 · 167 kWh/yr
    €47/year
30. 80A++
    Hitachi RAM-40NP2E / RAK-15QPE + RAK-35RXE

    4 kW · SEER 8.4 · 167 kWh/yr
    €47/year
31. 81A++
    Mitsubishi Heavy Industries SCM41ZS-W_SRK20ZS-WFx2

    4 kW · SEER 8.4 · 167 kWh/yr
    €47/year
32. 82A+++
    GREE GWHD(14)NK6TO+ GWH(07)AUCXB-K6DNA2D/I+GWH09AUCXB-K6DNA2D/I

    4.1 kW · SEER 8.6 · 167 kWh/yr
    €47/year
33. 83A+++
    LG MJ07PC NSJ/MU2R15 U18A0

    4.1 kW · SEER 8.6 · 167 kWh/yr
    €47/year
34. 84A++
    Hitachi RAM-40NP2E / RAK-15QPE + RAK-25RXE

    4 kW · SEER 8.3 · 168 kWh/yr
    €48/year
35. 85A++
    Hitachi RAM-40NP2E / RAK-18RPE + RAK-25RPE

    4 kW · SEER 8.3 · 168 kWh/yr
    €48/year
36. 86A++
    Hitachi RAM-40NP2E / RAK-18RPE + RAK-35RXE

    4 kW · SEER 8.3 · 168 kWh/yr
    €48/year
37. 87A++
    Mitsubishi Electric PLA-ZM35EA2 / PUZ-ZM35VKA2

    3.6 kW · SEER 7.5 · 168 kWh/yr
    €48/year
38. 88A++
    Daikin FTXM25N2V1B / FTXM25N2V1B / 2MXM40M4V1B

    4 kW · SEER 8.4 · 168 kWh/yr
    €48/year
39. 89A++
    Daikin ATXM25N2V1B / ATXM25N2V1B / 2AMXM40M4V1B

    4 kW · SEER 8.3 · 168 kWh/yr
    €48/year
40. 90A++
    Mitsubishi Electric PLA-ZM35EA3 / PUZ-ZM35VKA3

    3.6 kW · SEER 7.5 · 168 kWh/yr
    €48/year
41. 91A++
    Daikin ATXM25A2V1B / ATXM25A2V1B / 2AMXM40M4V1B9

    4 kW · SEER 8.3 · 168 kWh/yr
    €48/year
42. 92A+++
    LG MU2R15 U12

    4.1 kW · SEER 8.5 · 169 kWh/yr
    €48/year
43. 93A++
    Hitachi RAM-40NP2E / RAK-15QPE + RAK-18QXE

    4 kW · SEER 8.3 · 169 kWh/yr
    €48/year
44. 94A++
    Hitachi RAM-40NP2E / RAK-18RPE + RAK-25RXE

    4 kW · SEER 8.3 · 169 kWh/yr
    €48/year
45. 95A++
    Hitachi RAM-40NP2E / RAK-25RPE + RAK-25RPE

    4 kW · SEER 8.3 · 169 kWh/yr
    €48/year
46. 96A+++
    Mitsubishi Electric MXZ-2F42VF2-E1 / MSZ-LN18VG + MSZ-LN25VG

    4.2 kW · SEER 8.6 · 169 kWh/yr
    €48/year
47. 97A+++
    Mitsubishi Electric MXZ-2F42VF3-E2 / MSZ-LN18VG2 + MSZ-LN25VG2

    4.2 kW · SEER 8.7 · 169 kWh/yr
    €48/year
48. 98A+++
    Panasonic CS-MZ16TKE + CS-Z25TKEW / CU-2Z41TBE

    4.1 kW · SEER 8.5 · 169 kWh/yr
    €48/year
49. 99A++
    Hitachi RAM-40NP2E / RAK-25RPE + RAK-35RPE

    4 kW · SEER 8.2 · 170 kWh/yr
    €48/year
50. 100A++
    Hitachi RAM-40NP2E / RAK-25RPE + RAK-35RXE

    4 kW · SEER 8.3 · 170 kWh/yr
    €48/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