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. 501A++
   Hisense 2AMW42HC99

   4.2 kW · SEER 7 · 210 kWh/yr
   €59/year
2. 502A++
   Hisense 2AMW42HC912

   4.2 kW · SEER 7 · 210 kWh/yr
   €59/year
3. 503A++
   Thermor 872953

   4.2 kW · SEER 7 · 210 kWh/yr
   €59/year
4. 504A++
   Bosch 7733703975

   4 kW · SEER 6.8 · 210 kWh/yr
   €59/year
5. 505A++
   Vulcano 7733703985

   4 kW · SEER 6.9 · 210 kWh/yr
   €59/year
6. 506A++
   Bosch 7733704119

   4 kW · SEER 6.9 · 210 kWh/yr
   €59/year
7. 507A++
   Hisense 2AMW42U4RRA

   4.2 kW · SEER 7 · 210 kWh/yr
   €59/year
8. 508A++
   Inventor PR1VI32-12WFCB/PR1VO32-12B

   3.6 kW · SEER 6.1 · 211 kWh/yr
   €60/year
9. 509A++
   Midea MA-12NXD0-XI / MA-12N8D0-XO

   3.6 kW · SEER 6.1 · 211 kWh/yr
   €60/year
10. 510A++
    Vivax ACP-12CH35AEMI R32s

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
11. 511A++
    Samsung AC052BN6PKG/AC052BXAPKG

    5 kW · SEER 8.3 · 211 kWh/yr
    €60/year
12. 512A++
    Mitsubishi Heavy Industries SRC50ZSX-W1_SRK50ZSX-W

    5 kW · SEER 8.3 · 211 kWh/yr
    €60/year
13. 513A++
    Daikin ATXP20L2V1B / ATXP25L2V1B / 2AMXM50M4V1B

    4.5 kW · SEER 7.5 · 211 kWh/yr
    €60/year
14. 514A++
    Daikin CTXM15R5V1B / FDXM25F3V1B9 / 2MXM50A2V1B9

    4 kW · SEER 6.6 · 211 kWh/yr
    €60/year
15. 515A++
    Mundoclima MUEX-14-H9.2

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
16. 516A++
    Inventor U5MRSL32(2)-14/AR2MVI-09WiFi

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
17. 517A++
    NOBU NBKU2VI32-12WFRB/NBKU2VO32-12B

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
18. 518A++
    Airfan AF5VI32-12B/AF5VO32-12B

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
19. 519A++
    Shakai SH32I-12B/SH32O-12B

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
20. 520A++
    Tycoon TC3VI32-12B/TC3VO32-12B

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
21. 521A++
    Vivax ACP-14COFM40AERIs R32

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
22. 522A++
    Frigicoll SA KLKIM-35(12)-MN8S3/KLKO-35(12)-MN8S3

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
23. 523A++
    Olimpia Splendid OS-KENEH12EI / OS-SENEH12EI

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
24. 524A++
    Olimpia Splendid OS-CEMYH14EI+OS-SECYH09EI+OS-SECYH09EI - NEXYA S4 E DUAL INVERTER

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
25. 525A++
    Olimpia Splendid OS-CEMYH14EI+OS-SECYH09EI+OS-SECYH12EI - NEXYA S4 E DUAL INVERTER

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
26. 526A++
    Olimpia Splendid OS-CEAIH14EI+OS-SECYH09EI+OS-SECYH09EI - ARYAL S1 E DUAL INVERTER 14

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
27. 527A++
    Sekom SM409DAX+2xSM269AB4

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
28. 528A++
    Rotenso I21Xi R14*2/H40Xm2 R15

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
29. 529A++
    Samsung AR40F12C0AMNSK/AR40F12C0AMXSK

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
30. 530A++
    Hokkaido HKEU 264 ZAL x 2 - HCKU 472 Z2

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
31. 531A++
    Electroline MDCE-409DAX+2xMDCE-98AB2-1

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
32. 532A++
    Olimpia Splendid OS-CAAMH14E I+ OS-SAAQH10EI + OS-SAAQH12EI

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
33. 533A++
    Meireles MAC 12 W

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
34. 534A++
    Rotenso I21Xi R15*2 / H40Xm2 R15

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
35. 535A++
    Artel AMX12RP24

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
36. 536A++
    Mitsui MTX12HP24

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
37. 537A++
    Centrometal MTX12HP24CM

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
38. 538A++
    AMG NMTXDO18HP24X

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
39. 539A++
    Rossato 5112109

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
40. 540A++
    Olimpia Splendid OS-KEAPH12EI + OS-SEAPH12EI

    3.6 kW · SEER 6.1 · 211 kWh/yr
    €60/year
41. 541A++
    Bosch 7733705507

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
42. 542A++
    Bosch 7733705008

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
43. 543A++
    Ariston DUAL 40 NEVIS NET_UA1-I 9+9

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
44. 544A++
    Ariston DUAL 40 NEVIS NET_UA1-I 12+12

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
45. 545A++
    Ariston DUAL 40 NEVIS NET_UA1-I 9+12

    4.1 kW · SEER 6.8 · 211 kWh/yr
    €60/year
46. 546A+
    Hitachi RAM-40NP2B / RAK-15QPB + RAI-25QPB

    4 kW · SEER 6.6 · 212 kWh/yr
    €60/year
47. 547A++
    Daikin CTXM15N2V1B / FDXM25F3V1B9 / 2MXM50M3V1B9

    4 kW · SEER 6.6 · 212 kWh/yr
    €60/year
48. 548A++
    Fujitsu AOYG14KMTA/ASYG14KMTB

    4.2 kW · SEER 6.9 · 213 kWh/yr
    €60/year
49. 549A++
    Fuji Electric ROG14KETA/RSG14KETF

    4.2 kW · SEER 6.9 · 213 kWh/yr
    €60/year
50. 550A+
    Hitachi RAM-40NP2B / RAK-15QPB + RAD-25QPB

    4 kW · SEER 6.6 · 213 kWh/yr
    €60/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