Most energy-efficient air conditioners, 5.1–7 kW (2026)

Choosing a model from the most efficient 5% instead of the least efficient 5% in this group saves about €53 a year at the EU average electricity price (0.283 €/kWh).

By energy class: A 174 · A+ 263 · A++ 3,540 · A+++ 451 · B 25 · C 1 · D 1

1. 251A+++
   Hitachi RAM-53NP2E / RAK-35RPE + RAK-42RPE

   5.3 kW · SEER 8.5 · 218 kWh/yr
   €62/year
2. 252A+++
   Hitachi RAM-53NP2E / RAK-35RPE + RAK-50RPE

   5.3 kW · SEER 8.5 · 218 kWh/yr
   €62/year
3. 253A+++
   Hitachi RAM-53NP2E / RAK-35RPE + RAK-50RXE

   5.3 kW · SEER 8.5 · 218 kWh/yr
   €62/year
4. 254A+++
   Hitachi RAM-53NP2E / RAK-35RPE + RAK-50RPE1

   5.3 kW · SEER 8.5 · 218 kWh/yr
   €62/year
5. 255A+++
   Hitachi RAM-53NP2E / RAK-35RXE + RAK-35RXE

   5.3 kW · SEER 8.5 · 218 kWh/yr
   €62/year
6. 256A+++
   Hitachi RAM-53NP2E / RAK-35RXE + RAK-42RPE

   5.3 kW · SEER 8.5 · 218 kWh/yr
   €62/year
7. 257A+++
   Hitachi RAM-53NP2E / RAK-35RXE + RAK-50RPE

   5.3 kW · SEER 8.5 · 218 kWh/yr
   €62/year
8. 258A+++
   Hitachi RAM-53NP2E / RAK-35RXE + RAK-50RXE

   5.3 kW · SEER 8.5 · 218 kWh/yr
   €62/year
9. 259A+++
   Hitachi RAM-53NP2E / RAK-35RXE + RAK-50RPE1

   5.3 kW · SEER 8.5 · 218 kWh/yr
   €62/year
10. 260A+++
    Hitachi RAM-53NP2E / RAK-42RPE + RAK-42RPE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
11. 261A+++
    Hitachi RAM-53NP3E / RAK-15QPE + RAK-25RPE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
12. 262A+++
    Hitachi RAM-53NP3E / RAK-15QPE + RAK-50RPE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
13. 263A+++
    Hitachi RAM-53NP3E / RAK-18RPE + RAK-25RPE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
14. 264A+++
    Hitachi RAM-53NP3E / RAK-18QXE + RAK-35RPE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
15. 265A+++
    Hitachi RAM-53NP3E / RAK-25RPE + RAK-25RXE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
16. 266A+++
    Hitachi RAM-53NP3E / RAK-25RXE + RAK-42RPE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
17. 267A+++
    Hitachi RAM-53NP3E / RAK-18QXE + RAK-25RPE + RAK-25RXE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
18. 268A+++
    Hitachi RAM-53NP3E / RAK-15QPE + RAK-18RPE + RAK-50RPE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
19. 269A+++
    Hitachi RAM-53NP3E / RAK-15QPE + RAK-25RXE + RAK-42RPE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
20. 270A+++
    Hitachi RAM-53NP3E / RAK-18RPE + RAK-18QXE + RAK-18QXE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
21. 271A+++
    Hitachi RAM-53NP3E / RAK-18RPE + RAK-25RPE + RAK-42RPE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
22. 272A+++
    Hitachi RAM-53NP3E / RAK-18QXE + RAK-25RXE + RAK-35RXE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
23. 273A+++
    Hitachi RAM-53NP3E / RAK-25RXE + RAK-25RXE + RAK-25RXE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
24. 274A+++
    Hitachi RAM-53NP2E / RAK-18QXE + RAK-35RXE

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
25. 275A+++
    GREE GWH18AFDXF-K6DNA1D

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
26. 276A++
    ARGO DELUXE 18000

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
27. 277A+++
    Haier AS50SDBHRA-MW/1U50KEBFRA-SH

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
28. 278A+++
    Nuvelle QDL 18INVi Wifi / QDF 18INVo Wifi

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
29. 279A+++
    Tesla TA54MMGT-1832IHWT

    5.3 kW · SEER 8.7 · 218 kWh/yr
    €62/year
30. 280A+++
    Haier AS50SDBHRA-MB / 1U50KEBFRA-S

    5.3 kW · SEER 8.6 · 218 kWh/yr
    €62/year
31. 281A+++
    GREE GWH18AZDXF-K6DNA4A

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
32. 282A+++
    Arielli ASW-18CPHZ

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
33. 283A+++
    Rotenso M26Xi R15*2/HHP50Xm2 R15

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
34. 284A+++
    Rotenso RO26Xi R14*2/HHP50Xm2 R15

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
35. 285A+++
    Arielli ASW-18CPHS

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
36. 286A+++
    R-4Living HP A-A 18K

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
37. 287A+++
    Atlantic 872155

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
38. 288A+++
    Atlantic 872201

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
39. 289A+++
    GREE GWH18ACDXF-K6DNA5D

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
40. 290A+++
    Buderus 7733703673

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
41. 291A+++
    Bosch 7733703635

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
42. 292A+++
    Bosch 7733704926

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
43. 293A+++
    Bosch 7733704927

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
44. 294A+++
    Buderus 7733704971

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
45. 295A+++
    Buderus 7733704970

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
46. 296A+++
    Nakassi N18SAC26G

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
47. 297A+++
    Aufit Q+++ 18K

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
48. 298A+++
    Sinclair SIH+SOH-18BITP

    5.3 kW · SEER 8.5 · 218 kWh/yr
    €62/year
49. 299A+++
    Hitachi RAM-53NP3E / RAK-15QPE + RAK-18QXE

    5.3 kW · SEER 8.5 · 219 kWh/yr
    €62/year
50. 300A+++
    Hitachi RAM-53NP3E / RAK-18RPE + RAK-18QXE

    5.3 kW · SEER 8.5 · 219 kWh/yr
    €62/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