ENERGY STAR Most Efficient Air Conditioners
Window air conditioners that the ENERGY STAR dataset marks as “Most Efficient”. The mark is ENERGY STAR’s, shown here as listed.
At a glance
Matching models200 of 521 (38%)
Brands in the list23
Cooling (BTU/h)6,000 – 33,000 median 10,000
Efficiency (CEER)13.2 – 17.6 median 16
Voltage (V)115 – 230 median 115
Most listings come from Midea (90), TCL (19), Whirlpool (12), K�hl (11). Counts and ranges are calculated from the same official fields as the table below.
How models are selected
Rule: ENERGY STAR Most Efficient = Yes. Models with no value for the field are left out; a missing value is never treated as zero. The list is sorted by Efficiency (CEER), highest first, which is an ordering and not a recommendation.
200 matching models
Showing the first 50 of 200, in the order stated above.
| Model | CoolingBTU/h | Efficiency (CEER) | VoltageV |
|---|---|---|---|
| Midea MAH09B1AGR | 9,500 | 17.6 | 115 |
| Midea MAH09H1AGR | 9,500 | 17.6 | 115 |
| Midea MAH09N1AGR | 9,500 | 17.6 | 115 |
| Midea MAH09S1AGR | 9,500 | 17.6 | 115 |
| Midea MAH09W1AGR | 9,500 | 17.6 | 115 |
| Midea MWCUPWHP-09HEFN8-BCL1 | 9,500 | 17.6 | 115 |
| Midea MWCUPWHP-09HEFN8-BCL1N | 9,500 | 17.6 | 115 |
| K�hl KCVS08B10B | 8,700 | 17 | 115 |
| Gradient CCHP11 | 9,300 | 16.8 | 120 |
| K�hl KCVS12B30B | 12,700 | 16.8 | 230 |
| ZAFRO 54091EWA0-8K-ZAZ | 8,100 | 16.3 | 115 |
| Friedrich KCVM14B10B | 14,100 | 16.2 | 115 |
| K�hl KCVS12B10B | 12,300 | 16.2 | 115 |
| GREE GJH09BW-A6DRNL1B | 9,300 | 16.1 | 115 |
| BLACK+DECKER BDM08C | 8,000 | 16 | 115 |
| BLACK+DECKER BDM10C | 10,000 | 16 | 115 |
| BLACK+DECKER BDM12C | 12,000 | 16 | 115 |
| BLACK+DECKER BDM14C | 14,000 | 16 | 115 |
| BLACK+DECKER BDM18C | 18,000 | 16 | 230 |
| Brothers 102373 | 12,000 | 16 | 115 |
| Brothers 102387 | 18,000 | 16 | 230 |
| DuraSTAR DRWAC081XVB1 | 8,000 | 16 | 115 |
| DuraSTAR DRWAC101XVB1 | 10,000 | 16 | 115 |
| DuraSTAR DRWAC121XVB1 | 12,000 | 16 | 115 |
| Friedrich KCVS08B10A | 8,700 | 16 | 115 |
| Frigidaire FHWW085WF1 | 8,000 | 16 | 115 |
| Frigidaire FHWW105WF1 | 10,000 | 16 | 115 |
| Frigidaire FHWW106WF1 | 10,000 | 16 | 115 |
| Frigidaire FHWW125WF1 | 12,000 | 16 | 115 |
| Frigidaire FHWW126WF1 | 12,000 | 16 | 115 |
| Frigidaire FHWW145WF1 | 14,000 | 16 | 115 |
| Frigidaire FHWW146WF1 | 14,000 | 16 | 115 |
| Frigidaire FHWW185WF2 | 18,000 | 16 | 230 |
| Frigidaire Gallery GHWW105TF1 | 10,000 | 16 | 115 |
| Frigidaire Gallery GHWW125TF1 | 12,000 | 16 | 115 |
| GE Appliances AWHV10***# | 10,000 | 16 | 115 |
| GE Appliances AWHV12***# | 12,000 | 16 | 115 |
| GE Appliances AWHV14***# | 14,000 | 16 | 115 |
| GE Appliances AWHV18***# | 18,000 | 16 | 230 |
| GE PWJV08W**# | 8,000 | 16 | 115 |
| GE PWJV10W**# | 10,000 | 16 | 115 |
| GE PWJV14W**# | 14,000 | 16 | 115 |
| GREE GJC08BU-A6DRNJ2A | 8,300 | 16 | 115 |
| Hisense 143-1383-3 | 10,000 | 16 | 115 |
| Hisense AW-10TW1RAGUE75 | 10,000 | 16 | 115 |
| Hisense AW-12TW1RZAU70 | 11,500 | 16 | 115 |
| Hisense AWUS1227TW | 11,500 | 16 | 115 |
| K�hl KCVS16B30B | 15,400 | 16 | 230 |
| Midea 1010451315 | 8,000 | 16 | 115 |
| Midea 1010451479 | 10,000 | 16 | 115 |
Related shortlists and tools
- High-CEER Window Air Conditioners (16+) 149 models
- Energy-Efficient Air Conditioners 64 models
- Midea Window Air Conditioners 180 models
- 8,000 BTU Window Air Conditioners 122 models
- 10,000 BTU Window Air Conditioners 97 models
- 12,000 BTU Window Air Conditioners 121 models
- Window AC BTU Calculator official sizing table
- Portable vs window air conditioners: which one fits your room
- Air Conditioners & Fans: what matters when choosing
Sources
- ENERGY STAR product guidance for window air conditioners (data.energystar.gov, updated 2026-11-06)
We compile and compare published data; we do not run our own product tests. See How We Compare.