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. 1001A++
   Panasonic CS-TZ50WKEW / CU-TZ50WKE

   5 kW · SEER 6.9 · 254 kWh/yr
   €72/year
2. 1002A++
   Samsung AC052TNXDKG / AC052RXADKG

   5 kW · SEER 6.9 · 254 kWh/yr
   €72/year
3. 1003A++
   Panasonic CS-E18SKEW-M / CU-E18SKE

   5 kW · SEER 6.9 · 254 kWh/yr
   €72/year
4. 1004A++
   Mitsubishi Electric MFZ-KW50VG / MUFZ-KW50VGHZ

   5 kW · SEER 6.8 · 255 kWh/yr
   €72/year
5. 1005A++
   Mitsubishi Electric SLZ-M50FA3 / SUZ-M50VA2

   4.6 kW · SEER 6.3 · 255 kWh/yr
   €72/year
6. 1006A+
   Ariston DUAL 40 DUC R32_U-I N 9+12

   4.1 kW · SEER 5.6 · 255 kWh/yr
   €72/year
7. 1007A+
   Ariston DUAL 40 ALYS NET_UA1-I 9+12

   4.1 kW · SEER 5.6 · 255 kWh/yr
   €72/year
8. 1008A+
   Sharp AY-X9WSRS (2 units)/AE-X2M14WR

   4.1 kW · SEER 5.6 · 256 kWh/yr
   €72/year
9. 1009A+++
   Haier AS50XCAHRA / 1U50S2SJ2FA-2

   5 kW · SEER 6.6 · 256 kWh/yr
   €72/year
10. 1010A++
    Haier AS71XCAHRA / 1U71S2ST1FA

    5 kW · SEER 6.6 · 256 kWh/yr
    €72/year
11. 1011A+
    Bosch 7733701510

    4.1 kW · SEER 5.6 · 256 kWh/yr
    €72/year
12. 1012A+
    Vulcano 7733701513

    4.1 kW · SEER 5.6 · 256 kWh/yr
    €72/year
13. 1013A++
    Hitachi RAC-50NPE / RAI-50RPE

    5 kW · SEER 6.8 · 256 kWh/yr
    €72/year
14. 1014A++
    Mitsubishi Electric SLZ-M50FA2 / SUZ-KA50VA6

    4.6 kW · SEER 6.3 · 256 kWh/yr
    €72/year
15. 1015A++
    Ikura IK2I-18WFI/IK2O-18

    4.6 kW · SEER 6.3 · 256 kWh/yr
    €72/year
16. 1016A++
    Candy CY-18TAIN/CY-18TAOUT

    4.6 kW · SEER 6.3 · 256 kWh/yr
    €72/year
17. 1017A+
    Olimpia Splendid OS-CEAIH14EI+OS-SEAPH10EI+OS-SEAPH10EI - ARYAL S1 E DUAL INVERTER 14

    4.1 kW · SEER 5.6 · 256 kWh/yr
    €72/year
18. 1018A+
    Olimpia Splendid OS-CEAIH14EI+OS-SEAPH10EI+OS-SEAPH12EI - ARYAL S1 E DUAL INVERTER 14

    4.1 kW · SEER 5.6 · 256 kWh/yr
    €72/year
19. 1019A++
    Toshiba Carrier Corporation RAV-GM562ATP-E+RAV-HM561UTP-E

    5 kW · SEER 6.8 · 256 kWh/yr
    €72/year
20. 1020A+
    Ferroli DIAMANT M 14-2

    4.1 kW · SEER 5.6 · 256 kWh/yr
    €72/year
21. 1021A+
    Ferroli DIAMANT M 14-2 PLUS

    4.1 kW · SEER 5.6 · 256 kWh/yr
    €72/year
22. 1022A++
    LG UUB1 U20 / MJ18PC NSK

    5 kW · SEER 6.8 · 257 kWh/yr
    €73/year
23. 1023A++
    Hitachi RAC-50FXE / RAF-50RXE

    5 kW · SEER 6.8 · 257 kWh/yr
    €73/year
24. 1024A++
    Mitsubishi Electric MFZ-KT50VG / SUZ-M50VA

    5 kW · SEER 6.8 · 257 kWh/yr
    €73/year
25. 1025A++
    Daikin FCAG50BVEB / RZAG50A2V1B

    5 kW · SEER 6.8 · 257 kWh/yr
    €73/year
26. 1026A++
    Daikin FVXM50FV1B9 / RXM50N2V1B9

    5 kW · SEER 6.8 · 257 kWh/yr
    €73/year
27. 1027A++
    Daikin FHA50AVEB9 / RZAG50A2V1B

    5 kW · SEER 6.8 · 257 kWh/yr
    €73/year
28. 1028A++
    Panasonic CS-RZ50VKEW / CU-RZ50VKE

    5 kW · SEER 6.8 · 257 kWh/yr
    €73/year
29. 1029A++
    Mitsubishi Electric MFZ-KT50VGK / SUZ-M50VA2

    5 kW · SEER 6.8 · 257 kWh/yr
    €73/year
30. 1030A++
    Toshiba Carrier Corporation RAS-18J2AVSG-E+RAS-B18J2FVG-E

    5 kW · SEER 6.8 · 257 kWh/yr
    €73/year
31. 1031A++
    Daikin FTXS50K3V1B / RXS50L2V1B

    5 kW · SEER 6.8 · 257 kWh/yr
    €73/year
32. 1032A++
    Midea MFAU-16HRFNX(GA)/MOX330U-18HFN8-Q(GA)

    4.8 kW · SEER 6.5 · 258 kWh/yr
    €73/year
33. 1033A+
    Panasonic CS-RE9RKEW + CS-RE9RKEW / CU-2RE18SBE

    4.8 kW · SEER 6.5 · 258 kWh/yr
    €73/year
34. 1034A++
    Mitsubishi Electric PLA-M50EA / PUHZ-ZRP50VKA2

    5 kW · SEER 6.7 · 258 kWh/yr
    €73/year
35. 1035A++
    Mitsubishi Electric PLA-M50EA2 / PUHZ-ZRP50VKA2

    5 kW · SEER 6.7 · 258 kWh/yr
    €73/year
36. 1036A+
    Aermec SGE200W x 2 MGE420

    4.1 kW · SEER 5.6 · 258 kWh/yr
    €73/year
37. 1037A++
    Mitsubishi Heavy Industries SCM50ZS-S1_SRK20ZSX-Sx3

    5 kW · SEER 6.8 · 258 kWh/yr
    €73/year
38. 1038A+
    HTW2M4191241B239B5

    4.1 kW · SEER 5.6 · 258 kWh/yr
    €73/year
39. 1039A++
    Hitachi RAS-2HVRC3 - RPI-2.0FSR(1)E

    5 kW · SEER 6.8 · 258 kWh/yr
    €73/year
40. 1040A++
    Hitachi RAS-2HVRC3 - RPK-2.0FSR(H)M

    5 kW · SEER 6.8 · 258 kWh/yr
    €73/year
41. 1041A+
    Sekom SM409DAX+(2x)IMD94AF4W

    4.1 kW · SEER 5.6 · 258 kWh/yr
    €73/year
42. 1042A+
    HTW2M419941B239B5

    4.1 kW · SEER 5.6 · 258 kWh/yr
    €73/year
43. 1043A+
    Olimpia Splendid OS-CANMH14EI + OS-SENEH09EI + OS-SENEH09EI

    4.1 kW · SEER 5.6 · 258 kWh/yr
    €73/year
44. 1044A++
    Heiko JS035-M1, JS035-M1/M2T050-D3

    4.8 kW · SEER 6.5 · 258 kWh/yr
    €73/year
45. 1045A+
    Emmeti XECO-2415TE XECO-07-07XXX

    4.2 kW · SEER 5.7 · 258 kWh/yr
    €73/year
46. 1046A+
    Ferroli AMBRA 14-2

    4.1 kW · SEER 5.6 · 258 kWh/yr
    €73/year
47. 1047A+
    Techlife TFCF40DUALWE+(2x)TFCFMULTI9WI

    4.1 kW · SEER 5.6 · 258 kWh/yr
    €73/year
48. 1048A+
    Ariston DUAL 40 ALYS NET_UA1-I 9+9

    4.1 kW · SEER 5.6 · 258 kWh/yr
    €73/year
49. 1049A+
    Fujitsu AOYG14KBTB/ARXG14KLLAP

    4.3 kW · SEER 5.8 · 259 kWh/yr
    €73/year
50. 1050A+
    Fujitsu AOYG14LALL/ARYG14LLTB

    4.3 kW · SEER 5.8 · 259 kWh/yr
    €73/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