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. 851A++
   Sinclair SOM-18BS2

   5.3 kW · SEER 7 · 265 kWh/yr
   €75/year
2. 852A++
   Sinclair SOM-18BS(-LH)

   5.3 kW · SEER 7 · 265 kWh/yr
   €75/year
3. 853A++
   KENSOL Sp. z o.o. KV-053

   5.3 kW · SEER 7 · 265 kWh/yr
   €75/year
4. 854A++
   AUX-18J2O

   5.3 kW · SEER 7 · 265 kWh/yr
   €75/year
5. 855A++
   Arielli ASW-H18B4/JDR3DI-EU (WI-FI)

   5.3 kW · SEER 7 · 265 kWh/yr
   €75/year
6. 856A++
   Arielli ASW-H18B4/JNR3DI--EU (WI-FI)

   5.3 kW · SEER 7 · 265 kWh/yr
   €75/year
7. 857A++
   Arielli ASW-H18B4/FWR3DI-EU

   5.1 kW · SEER 6.4 · 265 kWh/yr
   €75/year
8. 858A++
   Qlima S 2353

   5.3 kW · SEER 7 · 265 kWh/yr
   €75/year
9. 859A++
   Rotenso I50Xi R14/I50Xo R14

   5.3 kW · SEER 7 · 265 kWh/yr
   €75/year
10. 860A++
    Vortex VAI1822JAW

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
11. 861A++
    Qlima SC 6053

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
12. 862A++
    Suneco S18H3

    5.1 kW · SEER 6.7 · 265 kWh/yr
    €75/year
13. 863A++
    Q Excellence Premium SCM 45 DUO

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
14. 864A++
    Qlima SCM 52 DUO

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
15. 865A++
    Arielli ASW-H18B4/FFR3DI-EU (WI-FI)

    5.1 kW · SEER 6.7 · 265 kWh/yr
    €75/year
16. 866A++
    Kältebringer KB53-18000BTUQC

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
17. 867A++
    Kältebringer KB53-18000BTU

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
18. 868A++
    Baxi Spa LSGT50-S(7886383)+JSGNW50(7886372)

    5.3 kW · SEER 6.8 · 265 kWh/yr
    €75/year
19. 869A++
    Vivax ACP-18CH50AERI+ R32

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
20. 870A++
    Grundig GEHPK 185 / GEHPK 186 8511543600

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
21. 871A++
    Sanden Intercool Italy Srl SND-18ARS3-ID / SND-18SFU-OD

    5.1 kW · SEER 6.7 · 265 kWh/yr
    €75/year
22. 872A++
    Sanden Intercool Italy Srl SND-18HRSB3-ID / SND-18HRSB3-OD

    5.3 kW · SEER 6.5 · 265 kWh/yr
    €75/year
23. 873A++
    Lennox LXVB-RHM18NI / LXVB-RHM18NO

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
24. 874A++
    Vaillant VAIH1-050WNO

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
25. 875A++
    GREE GKH18EBXD-S6DNF5B

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
26. 876A++
    Buderus 7733701867

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
27. 877A++
    Bosch 7733701737

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
28. 878A++
    Animair IDU-A53N1/ODU-A53N1

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
29. 879A++
    Fisher FSAIF-SP-180AE3 / FSOAIF-SP-180AE3

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
30. 880A++
    Hyundai HRP-M18ELWI/2+HRP-M18ELWO/2

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
31. 881A++
    Hyundai HRP-M18CGI+HRP-M18CGO

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
32. 882A++
    Naitec SM50HXXK

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
33. 883A++
    VOX Electronics IJO18-SC4D

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
34. 884A++
    Lamborghini Caloreclima PERLA 18

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
35. 885A++
    VOX Electronics IFG18-AACT

    5.1 kW · SEER 6.7 · 265 kWh/yr
    €75/year
36. 886A++
    SOLIUS EASYFRESH 18000 MONOSPLIT

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
37. 887A++
    Infiniton SPTMF18A2

    5.1 kW · SEER 6.7 · 265 kWh/yr
    €75/year
38. 888A++
    Toyotomi CCT18IUR32-CB/OU18INVR32

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
39. 889A++
    ELCO DUAL 50 RIGEON PRO_IDU 9+18

    5.3 kW · SEER 6.9 · 265 kWh/yr
    €75/year
40. 890A++
    Ariston DUAL 50 NEVIS NET_UA1-I 9+18

    5.3 kW · SEER 6.9 · 265 kWh/yr
    €75/year
41. 891A++
    Ariston DUAL 50 NEVIS NET_UA1-I 12+18

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
42. 892A++
    ELCO DUAL 50 RIGEON PRO_IDU 12+18

    5.3 kW · SEER 7 · 265 kWh/yr
    €75/year
43. 893A++
    NOBU NBVI-18WFR/NBVO-18

    5.1 kW · SEER 6.7 · 266 kWh/yr
    €75/year
44. 894A++
    Ikura IKRI-18WFR/IKRO-18

    5.1 kW · SEER 6.7 · 266 kWh/yr
    €75/year
45. 895A++
    Nuvelle NPL 18INV/WF

    5.1 kW · SEER 6.7 · 266 kWh/yr
    €75/year
46. 896A++
    Tesla TA53FFUL-1832IAW

    5.1 kW · SEER 6.7 · 266 kWh/yr
    €75/year
47. 897A++
    Electrolux EACS/I-18HEF/N8 EEC

    5.1 kW · SEER 6.7 · 266 kWh/yr
    €75/year
48. 898A++
    Sevra SEV-18FH

    5.1 kW · SEER 6.7 · 266 kWh/yr
    €75/year
49. 899A++
    Zephir ZAX18000 MY25

    5.1 kW · SEER 6.7 · 266 kWh/yr
    €75/year
50. 900A++
    Kerosun KCA25-18IVi/KCA25-18IVo

    5.1 kW · SEER 6.7 · 266 kWh/yr
    €75/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