Most energy-efficient air conditioners, up to 2.5 kW (2026)

Choosing a model from the most efficient 5% instead of the least efficient 5% in this group saves about €21 a year at the EU average electricity price (0.283 €/kWh).

By energy class: A 108 · A+ 45 · A++ 429 · A+++ 172 · B 3 · C 1 · D 4

1. 551A++
   Panasonic CS-TE25TKEW / CU-TE25TKE

   2.5 kW · SEER 6.1 · 143 kWh/yr
   €40/year
2. 552A++
   Carrier 38WHSS025ATA0TEE+40WHSW025DTA0TEE

   2.5 kW · SEER 6.1 · 143 kWh/yr
   €40/year
3. 553A++
   Candy CY-09RAIN-20 / CY-09RAOUT-20

   2.5 kW · SEER 6.1 · 143 kWh/yr
   €40/year
4. 554A++
   Fisher FSAI-SU-94BE3 / FSOAI-SU-94BE3

   2.5 kW · SEER 6.1 · 143 kWh/yr
   €40/year
5. 555A++
   Hamilton Digital HDWI-DSGN-90C / HDOI-DSGN-90C

   2.5 kW · SEER 6.2 · 143 kWh/yr
   €40/year
6. 556A++
   Inventor L4VI32-09WiFiR/L4VO32-09

   2.5 kW · SEER 6.1 · 143 kWh/yr
   €40/year
7. 557A++
   Inventor L3VI-09/L3VO-09

   2.5 kW · SEER 6.1 · 143 kWh/yr
   €40/year
8. 558A++
   NOBU NBL4-09IDU32WiFiR/NBL4-09ODU32

   2.5 kW · SEER 6.1 · 143 kWh/yr
   €40/year
9. 559A++
   Sinclair ASH-09BIV

   2.5 kW · SEER 6.1 · 143 kWh/yr
   €40/year
10. 560A++
    Arielli AAC-09CH/KDI

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
11. 561A++
    AlpicAir AWI-25HRDC1E AWO-25HRDC1E

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
12. 562A++
    Tectro TSCS 1025

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
13. 563A++
    Multiwarm MKEGM 261 ZAL - MCNGS 261 ZA

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
14. 564A++
    LG WZ09AWN SNU1 / WZ09AWU SUU1

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
15. 565A++
    Mitsubishi Electric SFZ-M25VA2 / SUZ-M25VA2

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
16. 566A++
    Toshiba Carrier Corporation RAS-10J2AVG-E+RAS-B10J2KVG-E

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
17. 567A++
    Toshiba Carrier Corporation RAS-10B2AVG-E+RAS-B10B2KVG-E

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
18. 568A++
    Viessmann Vitoclima 200-S WS2026BLD0

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
19. 569A++
    Airton 409730

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
20. 570A++
    Green Electric GREEN.E09 GREEN ELECTRIC MONO 9

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
21. 571A++
    ARGO ECOLIGHT MONO 9000 WIFI

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
22. 572A++
    Storm ST16741E STORM MITE BASIC MONO KW 2,5 R32

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
23. 573A++
    TECHNIBEL ECOLIGHT MONO 9

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
24. 574A++
    GREE GWH09AAB-K6DNA3A

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
25. 575A++
    Tonair 409871

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
26. 576A++
    Maxon ECO MX-09HE013i

    2.5 kW · SEER 6.1 · 143 kWh/yr
    €40/year
27. 577A++
    Electrolux EACS/I-09HTP/N8/out EEC / EACS/I-09HTP/N8/in EEC

    2 kW · SEER 6.3 · 144 kWh/yr
    €41/year
28. 578A++
    Beko BEHPD 090/BEHPD 091 8508903200

    2.5 kW · SEER 6.1 · 144 kWh/yr
    €41/year
29. 579A++
    Nuova CINF25I + CINF25O

    2.5 kW · SEER 6.1 · 144 kWh/yr
    €41/year
30. 580A+
    Daikin FTXB25C2V1B / RXB25C2V1B

    2.5 kW · SEER 6 · 145 kWh/yr
    €41/year
31. 581A++
    Pacific ANEMOS09P

    2.5 kW · SEER 6.1 · 145 kWh/yr
    €41/year
32. 582A++
    Tesla TC25M211W-0932IA

    2.5 kW · SEER 6.1 · 145 kWh/yr
    €41/year
33. 583A++
    Brokton BRSC09

    2.5 kW · SEER 6.1 · 145 kWh/yr
    €41/year
34. 584A++
    Ocelair OASC09

    2.5 kW · SEER 6.1 · 145 kWh/yr
    €41/year
35. 585A++
    Corbero CSCECO09

    2.5 kW · SEER 6.1 · 145 kWh/yr
    €41/year
36. 586A+
    Daikin FDXM25F3V1B9 / RXM25A5V1B9

    2.4 kW · SEER 5.8 · 145 kWh/yr
    €41/year
37. 587A++
    Orbegozo FDI 95

    2.5 kW · SEER 6.2 · 145 kWh/yr
    €41/year
38. 588A++
    Akai MISTRAL9025K/C

    2.5 kW · SEER 6.1 · 145 kWh/yr
    €41/year
39. 589A+
    Panasonic CS-PZ25WKE / CU-PZ25WKE

    2.5 kW · SEER 6 · 146 kWh/yr
    €41/year
40. 590A+
    Mitsubishi Electric SEZ-M25DA2 / SUZ-M25VA

    2.5 kW · SEER 6 · 146 kWh/yr
    €41/year
41. 591A+
    Daikin ATXL25J2V1B / ARXL25M2V1B

    2.5 kW · SEER 6 · 146 kWh/yr
    €41/year
42. 592A+
    Daikin FTXL25J2V1B / RXL25M3V1B

    2.5 kW · SEER 6 · 146 kWh/yr
    €41/year
43. 593A+
    Mitsubishi Electric SEZ-M25DA3 / SUZ-M25VA2

    2.5 kW · SEER 6 · 146 kWh/yr
    €41/year
44. 594A++
    Arielli ACSD-09EBA

    2.5 kW · SEER 6.4 · 146 kWh/yr
    €41/year
45. 595A++
    Inventor O1MVI-09WFR/O1MVO-09

    2.5 kW · SEER 6.1 · 147 kWh/yr
    €42/year
46. 596A+
    Toshiba Carrier Corporation RAV-GM301ATP-E+RAV-HM301MUT-E

    2.5 kW · SEER 5.9 · 147 kWh/yr
    €42/year
47. 597A+
    Fujitsu AOYG09KATA/ARXG09KLLAP

    2.5 kW · SEER 5.9 · 148 kWh/yr
    €42/year
48. 598A+
    Daikin ATXB25C2V1B / ARXB25C2V1B

    2.5 kW · SEER 5.9 · 148 kWh/yr
    €42/year
49. 599A+
    Daikin FDXM25F3V1B9 / RXM25N2V1B9

    2.4 kW · SEER 5.7 · 148 kWh/yr
    €42/year
50. 600A+
    Fuji Electric ROG09KATA/RDG09KLLAP

    2.5 kW · SEER 5.9 · 148 kWh/yr
    €42/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