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. 601A++
   FREEO COND40W 2X FREEO25EV-TT

   4.1 kW · SEER 6.6 · 217 kWh/yr
   €61/year
2. 602A++
   Proklima PRO COND14W MULTI 2X1 PRO09WE-DH-W EVAP PRO12WE-DH-W EVAP

   4.1 kW · SEER 6.6 · 217 kWh/yr
   €61/year
3. 603A++
   Toshiba Carrier Corporation RAV-GP561ATW-E+RAV-GM561UT-E

   5 kW · SEER 8.1 · 217 kWh/yr
   €61/year
4. 604A++
   Electroline EDHE40D2+ID262H2KA+ID352H2KA

   4.1 kW · SEER 6.6 · 217 kWh/yr
   €61/year
5. 605A++
   Rotenso U21Xi R17*2 / H40Xm2 R15

   4.1 kW · SEER 6.6 · 217 kWh/yr
   €61/year
6. 606A++
   Bosch 7733703630

   5 kW · SEER 7.8 · 217 kWh/yr
   €61/year
7. 607A++
   Midea 2*EF-09RD1L/M2O-14N8

   4.1 kW · SEER 6.6 · 217 kWh/yr
   €61/year
8. 608A++
   Mitsubishi Electric MSY-TP50VF / MUY-TP50VF

   5 kW · SEER 8 · 218 kWh/yr
   €62/year
9. 609A+++
   Bosch 7733703632

   5 kW · SEER 8.5 · 218 kWh/yr
   €62/year
10. 610A++
    Panasonic S-3650PU3E / U-50PZ3E5

    5 kW · SEER 8 · 219 kWh/yr
    €62/year
11. 611A++
    Panasonic CS-NZ50YKE / CU-NZ50YKE

    5 kW · SEER 8 · 219 kWh/yr
    €62/year
12. 612A++
    Panasonic S-3650PK3E / U-50PZH3E5

    5 kW · SEER 8 · 219 kWh/yr
    €62/year
13. 613A++
    LG MU2M17 UL4/DM07RP NSJ

    4.7 kW · SEER 7.5 · 219 kWh/yr
    €62/year
14. 614A+
    Toshiba Carrier Corporation RAV-GM401ATP-E+RAV-HM401MUT-E

    3.6 kW · SEER 5.8 · 219 kWh/yr
    €62/year
15. 615A++
    GREE GWHD(14)NK6OO

    4.1 kW · SEER 6.5 · 220 kWh/yr
    €62/year
16. 616A++
    Storm ST19639 UE STORM MITE EVO DUAL KW 4,1

    4.1 kW · SEER 6.5 · 220 kWh/yr
    €62/year
17. 617A++
    Clivet MU2-Y 41M (1x2)

    4.1 kW · SEER 6.8 · 220 kWh/yr
    €62/year
18. 618A++
    Vind Scandinavia Caeli C-25

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
19. 619A++
    comfee CSAFBU-12HRDNXD0-W/COX133-12HFN8D0

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
20. 620A++
    MDV MSAFBU-12HRDNX-QRD0FGW X/MOX133-12HFN8-QRD0GW

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
21. 621A++
    Noxa NXRM-ID35XWM-1C/NXRM-OD35B-1C

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
22. 622A++
    Abivent ECO - 12

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
23. 623A++
    MAXA LDL35R1

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
24. 624A++
    MX3 XDL35R2

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
25. 625A++
    Kaysun KAY-CF 35 DR11/KAE-C 35 DR11

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
26. 626A++
    Eskimo ES-AF-12HRDN8 XI / ES-AF-12HRDN8 XO

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
27. 627A++
    Nakassi NAKA-12NXD0-I / NAKA-12N8D0-O

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
28. 628A++
    INCLIMA-12GR21 IN / INCLIMA-12GR21 OUT

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
29. 629A++
    Kaisai KWX-12HRGI/KWX-12HRGO

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
30. 630A++
    Kaisai Eco KEX-12KTGI/KEX-12KTGO

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
31. 631A++
    Auratsu AWX-12KTHI/AWX-12KTHO

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
32. 632A++
    Mitsubishi Heavy Industries SRC50ZSX-W1_FDT50VH

    5 kW · SEER 8 · 221 kWh/yr
    €63/year
33. 633A++
    Pitsos P1ZAI1255W/P1ZAO1255W

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
34. 634A++
    Ariston ALYS R32 C 35 MUD0 3381412

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
35. 635A++
    York YHKF12YEEBMJO-X / YHKF12XEEBMJ-RX

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
36. 636A++
    Johnson Controls JHKF12YEEBMJO-X / JHKF12XEEBMJ-RX

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
37. 637A
    Hitachi RAM-36NP2A / RAK-18QPA + RAD-18RPA

    3.6 kW · SEER 5.7 · 221 kWh/yr
    €63/year
38. 638A
    Hitachi RAM-36NP2A / RAK-18QXA + RAD-18RPA

    3.6 kW · SEER 5.7 · 221 kWh/yr
    €63/year
39. 639A++
    Aermec SGE350W SGE350

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
40. 640A+
    Clivet S.IZ1+MZ1-Y 35M

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
41. 641A++
    Clivet MZ2-Y 35M (1x1)

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
42. 642A++
    Tesla TM36AF21-1232IAW

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
43. 643A+
    Panasonic S-36PF1E5A / U-36PE2E5A

    3.6 kW · SEER 5.7 · 221 kWh/yr
    €63/year
44. 644A++
    Arielli ARSIN12R32-S

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
45. 645A++
    AMG NMTX12HP24

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
46. 646A++
    Cridav MTX12HP24CV

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
47. 647A++
    Db Energy MTX12HP24DB

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
48. 648A++
    FOCO MTX12HP24FO

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
49. 649A++
    Gencoair MTX12HP24GC

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/year
50. 650A++
    Green Project MTX12HP24GJ

    3.6 kW · SEER 6.1 · 221 kWh/yr
    €63/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