Most efficient window ACs by CEER

Ranked by DOE certified BTU/h. DOE data as of 2026-11-03 · DOE source

Your room

  1. 332certified window ACs
  2. 10with a matched listing

Key findings

  • Of 332 DOE certified window and room ACs, the highest efficiency (CEER) is LG LW8001CSY at 17.6 Btu/Wh (DOE data as of 2026-11-03). The median is 14.4 Btu/Wh.
  • 10 of the 332 DOE certified window and room ACs are matched to an Amazon listing as of 2026-11-03.
  • 16 of the 332 DOE certified window and room ACs are filed under two or more brand names: the same unit sold as different brands.

All 10 listed models

As an Amazon Associate I earn from qualifying purchases.

10 DOE certified window and room ACs, matched to an Amazon listing, highest CEER first. DOE data as of 2026-11-03. Download every model (CSV, JSON)
# Photo Model Labels Cooling, BTU/h CoversCEERWattsTypeHeat pump Brands Amazon
1 TCL KC-29/YXRDBp(E1/6)(080719) TCLKC-29/YXRDBp(E1/6)(080719)
  • CEER 16
  • Window
  • Sold under 2 brands
 10,000BTU/h, up to 450 sq ft 450 sq ft16880WindowNo 2 Check price on Amazon
2 TCL T12WV4S TCLT12WV4S
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,120WindowNo 1 Check price on Amazon
3 TCL T14WV9S TCLT14WV9S
  • CEER 16
  • Window
 14,000BTU/h, up to 700 sq ft 700 sq ft161,270WindowNo 1 Check price on Amazon
4 ZAFRO NCG-06CI/X1E-W KISSAIRNCG-06CI/X1E-W
  • CEER 15.1
  • Window
  • Sold under 8 brands
 6,200BTU/h, up to 250 sq ft 250 sq ft15.1460WindowNo 8 Check price on Amazon
5 ZAFRO NCG-08HI/X1E-W KISSAIRNCG-08HI/X1E-W
  • CEER 15.1
  • Window
  • Heat pump
  • Sold under 8 brands
 8,100BTU/h, up to 350 sq ft 350 sq ft15.1610WindowYes 8 Check price on Amazon
6 Midea MAW06V1UBL MideaMAW06V1UBL
  • CEER 15.1
  • Window
 6,000BTU/h, up to 250 sq ft 250 sq ft15.1610WindowNo 1 Check price on Amazon
7 Midea MAW06V1UWT MideaMAW06V1UWT
  • CEER 15.1
  • Window
 6,000BTU/h, up to 250 sq ft 250 sq ft15.1610WindowNo 1 Check price on Amazon
8 Midea MAW08V1KWT-A MideaMAW08V1KWT-A
  • CEER 15.1
  • Window
 7,800BTU/h, up to 300 sq ft 300 sq ft15.1720WindowNo 1 Check price on Amazon
9 Keystone KSTAW08INV-HC KeystoneKSTAW08INV-HC
  • CEER 14.5
  • Window
  • Heat pump
 8,000BTU/h, up to 350 sq ft 350 sq ft14.5700WindowYes 1 Check price on Amazon
10 Midea MAW08HV1CWT MideaMAW08HV1CWT
  • CEER 14.5
  • Window
  • Heat pump
 8,000BTU/h, up to 350 sq ft 350 sq ft14.5700WindowYes 1 Check price on Amazon
322 more certified models, with no Amazon listing matched

Top 100 of 322 DOE certified window and room ACs, with no matched listing, as of 2026-11-03.
# Photo Model Labels Cooling, BTU/h CoversCEERWattsTypeHeat pump Brands
1
LGLW8001CSY
  • CEER 17.6
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft17.6640WindowNo 1
2
MideaMAH09B1AGR
  • CEER 17.6
  • Window
  • Heat pump
 9,500BTU/h, up to 400 sq ft 400 sq ft17.6740WindowYes 1
3
MideaMAH09H1AGR
  • CEER 17.6
  • Window
  • Heat pump
 9,500BTU/h, up to 400 sq ft 400 sq ft17.6740WindowYes 1
4
MideaMAH09N1AGR
  • CEER 17.6
  • Window
  • Heat pump
 9,500BTU/h, up to 400 sq ft 400 sq ft17.6740WindowYes 1
5
MideaMAH09S1AGR
  • CEER 17.6
  • Window
  • Heat pump
 9,500BTU/h, up to 400 sq ft 400 sq ft17.6740WindowYes 1
6
MideaMAH09W1AGR
  • CEER 17.6
  • Window
  • Heat pump
 9,500BTU/h, up to 400 sq ft 400 sq ft17.6740WindowYes 1
7
MideaMWCUPWHP-09HEFN8-BCL1
  • CEER 17.6
  • Window
  • Heat pump
 9,500BTU/h, up to 400 sq ft 400 sq ft17.6740WindowYes 1
8
MideaMWCUPWHP-09HEFN8-BCL1N
  • CEER 17.6
  • Window
  • Heat pump
 9,500BTU/h, up to 400 sq ft 400 sq ft17.6740WindowYes 1
9
GradientCCHP11
  • CEER 16.8
  • Window
  • Heat pump
 9,300BTU/h, up to 400 sq ft 400 sq ft16.8690WindowYes 1
10
LGLW1001CSY
  • CEER 16.8
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16.8880WindowNo 1
11
LGLW1427S
  • CEER 16.8
  • Window
 14,000BTU/h, up to 700 sq ft 700 sq ft16.81,230WindowNo 1
12
LGLW1427SX
  • CEER 16.8
  • Window
 14,000BTU/h, up to 700 sq ft 700 sq ft16.81,230WindowNo 1
13
DeyeDAWA2-ACDC1-12KR2(US)
  • CEER 16.5
  • Through the wall
 11,000BTU/h, up to 450 sq ft 450 sq ft16.5950Through the wallNo 1
14
KISSAIRNCG-08CI/X1E-W
  • CEER 16.3
  • Window
  • Sold under 8 brands
 8,100BTU/h, up to 350 sq ft 350 sq ft16.3610WindowNo 8
15
GreeGJH09BW-A6DRNL1B
  • CEER 16.1
  • Window
  • Heat pump
 9,300BTU/h, up to 400 sq ft 400 sq ft16.1780WindowYes 1
16
BLACK+DECKERBDM08C
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16730WindowNo 1
17
BLACK+DECKERBDM10C
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16910WindowNo 1
18
BLACK+DECKERBDM12C
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,120WindowNo 1
19
BLACK+DECKERBDM14C
  • CEER 16
  • Window
 14,000BTU/h, up to 700 sq ft 700 sq ft161,320WindowNo 1
20
BLACK+DECKERBDM18C
  • CEER 16
  • Window
 18,000BTU/h, up to 1,000 sq ft 1,000 sq ft161,580WindowNo 1
21
Brothers102073
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,120WindowNo 1
22
Brothers102374
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16650WindowNo 1
23
Brothers102375
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,050WindowNo 1
24
Brothers102387
  • CEER 16
  • Window
 18,000BTU/h, up to 1,000 sq ft 1,000 sq ft161,580WindowNo 1
25
Carrier52WAC121BN8
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,120WindowNo 1
26
Carrier52WAC141BN8
  • CEER 16
  • Window
 14,000BTU/h, up to 700 sq ft 700 sq ft161,320WindowNo 1
27
Carrier52WAC181BN8
  • CEER 16
  • Window
 18,000BTU/h, up to 1,000 sq ft 1,000 sq ft161,580WindowNo 1
28
DurastarDRWAC081XVB1
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16730WindowNo 1
29
DurastarDRWAC101XVB1
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16910WindowNo 1
30
DurastarDRWAC121XVB1
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,120WindowNo 1
31
DurastarDRWHC081XVB1
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16650WindowNo 1
32
DurastarDRWHC122XVB1
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,050WindowNo 1
33
GEAWHV10***2
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16940WindowNo 1
34
GEAWHV14***2
  • CEER 16
  • Window
 14,000BTU/h, up to 700 sq ft 700 sq ft161,260WindowNo 1
35
GEAWHV18W**1
  • CEER 16
  • Window
 18,000BTU/h, up to 1,000 sq ft 1,000 sq ft161,640WindowNo 1
36
GEAWJ18H***1
  • CEER 16
  • Window
 18,000BTU/h, up to 1,000 sq ft 1,000 sq ft161,630WindowNo 1
37
GEPWJV08W**2
  • CEER 16
  • Window
  • Sold under 2 brands
 8,000BTU/h, up to 350 sq ft 350 sq ft16670WindowNo 2
38
GEPWJV10W**2
  • CEER 16
  • Window
  • Sold under 2 brands
 10,000BTU/h, up to 450 sq ft 450 sq ft16940WindowNo 2
39
GEPWJV12W**2
  • CEER 16
  • Window
  • Sold under 2 brands
 12,000BTU/h, up to 550 sq ft 550 sq ft161,010WindowNo 2
40
GEPWJV12W**3
  • CEER 16
  • Window
  • Sold under 2 brands
 12,000BTU/h, up to 550 sq ft 550 sq ft161,070WindowNo 2
41
GreeGJC08BU-A6DRNJ2A
  • CEER 16
  • Window
 8,300BTU/h, up to 350 sq ft 350 sq ft16710WindowNo 1
42
Hisense143-1383-3
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16800WindowNo 1
43
Hisense143-1386-6
  • CEER 16
  • Window
 11,500BTU/h, up to 450 sq ft 450 sq ft161,050WindowNo 1
44
HisenseAW-10TW1RAGUE75
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16800WindowNo 1
45
HisenseAW-10TW1RZAU70
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16830WindowNo 1
46
HisenseAW-12TR1RZBUE75
  • CEER 16
  • Window
 11,500BTU/h, up to 450 sq ft 450 sq ft161,050WindowNo 1
47
HisenseAW-12TW1RZAU70
  • CEER 16
  • Window
 11,500BTU/h, up to 450 sq ft 450 sq ft161,050WindowNo 1
48
HisenseAWUS1027TW
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16830WindowNo 1
49
HisenseAWUS1227TW
  • CEER 16
  • Window
 11,500BTU/h, up to 450 sq ft 450 sq ft161,050WindowNo 1
50
HisenseHLAW1227TW
  • CEER 16
  • Window
 11,500BTU/h, up to 450 sq ft 450 sq ft161,050WindowNo 1
51
HisenseHLW1027TW
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16830WindowNo 1
52
Midea1010451315
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16680WindowNo 1
53
Midea1010451479
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16920WindowNo 1
54
Midea1014242943
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16680WindowNo 1
55
Midea1014264129
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16920WindowNo 1
56
Midea344374297
  • CEER 16
  • Window
 18,000BTU/h, up to 1,000 sq ft 1,000 sq ft161,580WindowNo 1
57
MideaMAW08HN1KWT
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16650WindowNo 1
58
MideaMAW08HS1KWT-A
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16650WindowNo 1
59
MideaMAW08S1KWT-B
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16730WindowNo 1
60
MideaMAW08U1KWT
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16740WindowNo 1
61
MideaMAW08U2QWT
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16680WindowNo 1
62
MideaMAW08V1KYWT-S
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16740WindowNo 1
63
MideaMAW08V1WBK
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16710WindowNo 1
64
MideaMAW08V1WBK-T
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16710WindowNo 1
65
MideaMAW08V1WWT
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16710WindowNo 1
66
MideaMAW08V1WWT-T
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16710WindowNo 1
67
MideaMAW10RV1KWT
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16910WindowNo 1
68
MideaMAW10S1KWT-A
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16910WindowNo 1
69
MideaMAW10U1KWT
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft161,020WindowNo 1
70
MideaMAW10U1KWT-A
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16910WindowNo 1
71
MideaMAW10U1KWT-M
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft161,020WindowNo 1
72
MideaMAW10U2QWT
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16920WindowNo 1
73
MideaMAW10V1KYWT-S
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16910WindowNo 1
74
MideaMAW10V1QWBL-T
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft161,020WindowNo 1
75
MideaMAW10V1WWT
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16900WindowNo 1
76
MideaMAW10V1WWT-T
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16900WindowNo 1
77
MideaMAW12HN1KWT
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,050WindowNo 1
78
MideaMAW12HS1KWT-A
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,050WindowNo 1
79
MideaMAW12RV1KWT
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,120WindowNo 1
80
MideaMAW12S1KWT-A
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,120WindowNo 1
81
MideaMAW12S1KWT-B
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,120WindowNo 1
82
MideaMAW12U1KWT
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,260WindowNo 1
83
MideaMAW12U1KWT-A
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,120WindowNo 1
84
MideaMAW12U1KWT-M
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,260WindowNo 1
85
MideaMAW12V1KWT-A
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,260WindowNo 1
86
MideaMAW12V1KYWT-S
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,260WindowNo 1
87
MideaMAW12V1QWBL-T
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,260WindowNo 1
88
MideaMAW12V1WBK
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,130WindowNo 1
89
MideaMAW12V1WBK-T
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,130WindowNo 1
90
MideaMAW12V1WWT
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,130WindowNo 1
91
MideaMAW12V1WWT-T
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,130WindowNo 1
92
MideaMAW14RV1KWT
  • CEER 16
  • Window
 14,000BTU/h, up to 700 sq ft 700 sq ft161,320WindowNo 1
93
MideaMAW14S1KWT-A
  • CEER 16
  • Window
 14,000BTU/h, up to 700 sq ft 700 sq ft161,320WindowNo 1
94
MideaMAW14V1KYWT-S
  • CEER 16
  • Window
 14,000BTU/h, up to 700 sq ft 700 sq ft161,320WindowNo 1
95
MideaMAW18RV1KWT
  • CEER 16
  • Window
 18,000BTU/h, up to 1,000 sq ft 1,000 sq ft161,580WindowNo 1
96
MideaMAW18S2KWT-A
  • CEER 16
  • Window
 18,000BTU/h, up to 1,000 sq ft 1,000 sq ft161,580WindowNo 1
97
MideaMWAUQB-08CRFN8-BCP0
  • CEER 16
  • Window
 8,000BTU/h, up to 350 sq ft 350 sq ft16680WindowNo 1
98
MideaMWAUQB-10CRFN8-BCP0
  • CEER 16
  • Window
 10,000BTU/h, up to 450 sq ft 450 sq ft16920WindowNo 1
99
MideaMWAUQB-12CRFN8-BCP0
  • CEER 16
  • Window
 12,000BTU/h, up to 550 sq ft 550 sq ft161,260WindowNo 1
100
MideaMWCUWH-18CRFN8-MCP0
  • CEER 16
  • Window
 18,000BTU/h, up to 1,000 sq ft 1,000 sq ft161,580WindowNo 1

222 more certified models without a listing are in the free dataset and on their brand pages.

More window AC lists