#1 Window Most Efficient
Zafro 54091EWA0-8K-ZAZ
8,100 BTU · 372.7 kWh/season
125 8,000 BTU Window & Wall Air Conditioners, Ranked by Running Cost
Room air conditioners (window and through-the-wall) with rated cooling capacity 7,500-9,499 BTU/h, sold in the US. Window and through-the-wall units are mixed and tagged below. Ranked cheapest to run first, estimated at 18.31¢/kWh over a 750-hour cooling season (July 2026 rate).
125 ENERGY STAR certified models, from about $68 to $85 a cooling season to run at the US average electricity rate. This assumes 750 hours of cooling a year, ENERGY STAR's test assumption for a typical season — not continuous, year-round use. See how we calculate running costs.
Top 5 cheapest to run
#2 Window Most Efficient
Midea 1010451315
8,000 BTU · 375 kWh/season
#3 Window Most Efficient
Midea MAW08U1QWT
8,000 BTU · 375 kWh/season
#4 Window Most Efficient
Midea MWAUQB-08CRFN8-BCP0
8,000 BTU · 375 kWh/season
#5 Window Most Efficient
Midea MAW08U2QWT
8,000 BTU · 375 kWh/season
All 125 models
| Rank | Brand | Model | Mount | BTU | Energy use | Est. cost/season |
|---|---|---|---|---|---|---|
| 1 | Zafro Most Efficient | 54091EWA0-8K-ZAZ | Window | 8,100 | 372.7 kWh/season | $68 |
| 2 | Midea Most Efficient | 1010451315 | Window | 8,000 | 375 kWh/season | $69 |
| 3 | Midea Most Efficient | MAW08U1QWT | Window | 8,000 | 375 kWh/season | $69 |
| 4 | Midea Most Efficient | MWAUQB-08CRFN8-BCP0 | Window | 8,000 | 375 kWh/season | $69 |
| 5 | Midea Most Efficient | MAW08U2QWT | Window | 8,000 | 375 kWh/season | $69 |
| 6 | TCL Most Efficient | T08WV3S | Window | 8,000 | 375 kWh/season | $69 |
| 7 | TCL Most Efficient | W8WC72 | Window | 8,000 | 375 kWh/season | $69 |
| 8 | TCL Most Efficient | W8WC72-B | Window | 8,000 | 375 kWh/season | $69 |
| 9 | TCL Most Efficient | T08WV9S | Window | 8,000 | 375 kWh/season | $69 |
| 10 | TCL Most Efficient | T08WV9SB | Window | 8,000 | 375 kWh/season | $69 |
| 11 | Midea Most Efficient | MWEUWA-08CRFN8-BCP0 | Window | 8,000 | 375 kWh/season | $69 |
| 12 | Midea Most Efficient | 1014242943 | Window | 8,000 | 375 kWh/season | $69 |
| 13 | Midea Most Efficient | MAW08V1WBK-T | Window | 8,000 | 375 kWh/season | $69 |
| 14 | Midea Most Efficient | MAW08V1WBK | Window | 8,000 | 375 kWh/season | $69 |
| 15 | Midea Most Efficient | MAW08V1WWT | Window | 8,000 | 375 kWh/season | $69 |
| 16 | Midea Most Efficient | MAW08V1WWT-T | Window | 8,000 | 375 kWh/season | $69 |
| 17 | GE Most Efficient | PWJV08W**# | Window | 8,000 | 375 kWh/season | $69 |
| 18 | Midea Most Efficient | MWFUWA-08CRFN8-BCP0 | Window | 8,000 | 375 kWh/season | $69 |
| 19 | Frigidaire Most Efficient | FHWW085WF1 | Window | 8,000 | 375 kWh/season | $69 |
| 20 | Midea Most Efficient | MWFUQB-08CRFN8-BCP0 | Window | 8,000 | 375 kWh/season | $69 |
| 21 | BLACK+DECKER Most Efficient | BDM08C | Window | 8,000 | 375 kWh/season | $69 |
| 22 | DuraSTAR Most Efficient | DRWAC081XVB1 | Window | 8,000 | 375 kWh/season | $69 |
| 23 | Whirlpool Most Efficient | WHAW081CX | Window | 8,000 | 375 kWh/season | $69 |
| 24 | Whirlpool Most Efficient | WHAW081INV | Window | 8,000 | 375 kWh/season | $69 |
| 25 | Midea Most Efficient | MAW08V1KYWT-S | Window | 8,000 | 375 kWh/season | $69 |
| 26 | Midea Most Efficient | MAW08U1KWT | Window | 8,000 | 375 kWh/season | $69 |
| 27 | Midea Most Efficient | MWFUWA-08CRFN8-BCN11 | Window | 7,700 | 382.5 kWh/season | $70 |
| 28 | Kühl Most Efficient | KCVS08B10B | Window | 8,700 | 383.8 kWh/season | $70 |
| 29 | LG | LW8022IVSM | Window | 8,000 | 387.1 kWh/season | $71 |
| 30 | Midea Most Efficient | MWFUQB-8CRFN8-BCN11 | Window | 7,800 | 387.4 kWh/season | $71 |
| 31 | Midea Most Efficient | MAW08V1KWT-A | Window | 7,800 | 387.4 kWh/season | $71 |
| 32 | Midea Most Efficient | MAW08U1KWT-A | Window | 7,800 | 387.4 kWh/season | $71 |
| 33 | Midea Most Efficient | MAW08U1KWT-M | Window | 7,800 | 387.4 kWh/season | $71 |
| 34 | Frigidaire Most Efficient | GHWW085TF1 | Window | 7,800 | 387.4 kWh/season | $71 |
| 35 | GREE Most Efficient | GJC08BU-A6DRNJ2A | Window | 8,300 | 389.1 kWh/season | $71 |
| 36 | House Kobo | KOBOGJC08BU | Window | 8,100 | 391.9 kWh/season | $72 |
| 37 | Midea Most Efficient | MWAUQB-08HRFN8-BCN11 | Window | 8,000 | 397.4 kWh/season | $73 |
| 38 | Midea Most Efficient | MAW08HV1KWT-A | Window | 8,000 | 397.4 kWh/season | $73 |
| 39 | Maw08h1kwt Most Efficient | MAW08H1KWT | Window | 8,000 | 397.4 kWh/season | $73 |
| 40 | Perfect Aire | 1PACU8000 | Window | 8,000 | 400 kWh/season | $73 |
| 41 | Midea | MAW08V1QWT | Window | 8,000 | 400 kWh/season | $73 |
| 42 | Midea | MAW08AV1QWT | Window | 8,000 | 400 kWh/season | $73 |
| 43 | Midea | MW08MSWBA1RCM | Window | 8,000 | 400 kWh/season | $73 |
| 44 | Midea | MW08MSWBA5RCM | Window | 8,000 | 400 kWh/season | $73 |
| 45 | Comfort Aire | RXTS-81A | Window | 8,000 | 400 kWh/season | $73 |
| 46 | Frigidaire | GHWQ085WD1 | Window | 8,000 | 400 kWh/season | $73 |
| 47 | Frigidaire | GHWQ083WC1 | Window | 8,000 | 400 kWh/season | $73 |
| 48 | Midea | MAW08AV1QWT-C | Window | 8,000 | 400 kWh/season | $73 |
| 49 | GE | PWDV08W**# | Window | 8,000 | 400 kWh/season | $73 |
| 50 | Frigidaire | FHWW085WE1 | Window | 8,000 | 400 kWh/season | $73 |
| 51 | TCL | H8W4MW | Window | 8,000 | 400 kWh/season | $73 |
| 52 | Danby | DAC080B7IWDB-6 | Window | 8,000 | 400 kWh/season | $73 |
| 53 | Danby | DAC080B8IWDB-6 | Window | 8,000 | 400 kWh/season | $73 |
| 54 | Midea | MAW08V1QWT-T | Window | 8,000 | 400 kWh/season | $73 |
| 55 | Richmond | RMV08A10A | Window | 8,000 | 400 kWh/season | $73 |
| 56 | Friedrich | CCV08A10A | Window | 8,000 | 400 kWh/season | $73 |
| 57 | Keystone | KSTAW08INV | Window | 8,000 | 400 kWh/season | $73 |
| 58 | BLACK+DECKER | BD08NWES | Window | 8,000 | 400 kWh/season | $73 |
| 59 | Windmill | 08W2Wi | Window | 8,000 | 400 kWh/season | $73 |
| 60 | Hisense | AHW0823TW1W | Window | 8,000 | 400 kWh/season | $73 |
| 61 | Della | 048-TL-W8KI | Window | 8,000 | 400 kWh/season | $73 |
| 62 | Danby | DAC080EBIBDB | Window | 8,000 | 400 kWh/season | $73 |
| 63 | Hykolity | ACB-2601 | Window | 8,000 | 400 kWh/season | $73 |
| 64 | Whirlpool | WHAW-081IN | Window | 8,000 | 400 kWh/season | $73 |
| 65 | Midea | MWCUWA-08CRFN8-BCN10 | Window | 8,000 | 400 kWh/season | $73 |
| 66 | Midea | MWAUQB-08CRFN8-BCN10 | Window | 8,000 | 400 kWh/season | $73 |
| 67 | Zokop | TIWC-08CRD1 | Window | 8,000 | 400 kWh/season | $73 |
| 68 | Rovsun | TIWC-08CRD1 | Window | 8,000 | 400 kWh/season | $73 |
| 69 | Century | RXTS-81A | Window | 8,000 | 400 kWh/season | $73 |
| 70 | Frigidaire | GHWW085TE1 | Window | 8,000 | 400 kWh/season | $73 |
| 71 | Midea | MAW08S1VWT-A | Window | 8,000 | 400 kWh/season | $73 |
| 72 | Midea | MAW08W1QWT | Window | 8,000 | 400 kWh/season | $73 |
| 73 | Hisense | HLAW0825TW | Window | 8,000 | 400 kWh/season | $73 |
| 74 | Keystone | KSTAW081WA | Window | 8,000 | 400 kWh/season | $73 |
| 75 | Midea | MAW08V1YWT-S | Window | 8,000 | 400 kWh/season | $73 |
| 76 | Keplerx | KARC8RSVE1 | Window | 8,000 | 400 kWh/season | $73 |
| 77 | Midea | MAW08S1VWWT-T | Window | 8,000 | 400 kWh/season | $73 |
| 78 | Ktaxon | TIWC-08CRD1 | Window | 8,000 | 400 kWh/season | $73 |
| 79 | Midea | MAW08RV1CWT | Window | 8,000 | 400 kWh/season | $73 |
| 80 | Midea | MAW08V1QWT-S | Window | 8,000 | 400 kWh/season | $73 |
| 81 | Midea | MAW08W1QWT-T | Window | 8,000 | 400 kWh/season | $73 |
| 82 | TCL | H8W4KW | Window | 8,000 | 400 kWh/season | $73 |
| 83 | TCL | H8W4KW-CA | Window | 8,000 | 400 kWh/season | $73 |
| 84 | Honeywell | HAC-8I | Window | 8,000 | 400 kWh/season | $73 |
| 85 | Midea | MAW08V1UWT | Window | 8,000 | 400 kWh/season | $73 |
| 86 | TCL | T08WQ2S | Window | 8,000 | 400 kWh/season | $73 |
| 87 | Rovsun | RVTIW-08CRD1 | Window | 8,000 | 400 kWh/season | $73 |
| 88 | Ktaxon | KXTIW-08CRD1 | Window | 8,000 | 400 kWh/season | $73 |
| 89 | Hykolity | ACB-2621 | Window | 8,000 | 400 kWh/season | $73 |
| 90 | Element | EHWR08BE | Window | 8,000 | 400 kWh/season | $73 |
| 91 | Hisense | AALW08TW26 | Window | 8,000 | 400 kWh/season | $73 |
| 92 | Zafro Most Efficient | 54091EWA1-8K-ZAZ | Window | 8,100 | 402.3 kWh/season | $74 |
| 93 | Friedrich Most Efficient | KCVS08B10A | Window | 8,700 | 407.8 kWh/season | $75 |
| 94 | Keystone Most Efficient | KSTAW08INV-HC | Window | 8,000 | 413.8 kWh/season | $76 |
| 95 | Midea Most Efficient | MWAUQB-08HRFN8-BCL0 | Window | 8,000 | 413.8 kWh/season | $76 |
| 96 | Midea Most Efficient | MAW08HV1CWT | Window | 8,000 | 413.8 kWh/season | $76 |
| 97 | Gradient Most Efficient | CCHP11 | Window | 9,300 | 415.2 kWh/season | $76 |
| 98 | GE Most Efficient | AWP08P***# | Window | 8,000 | 416.7 kWh/season | $76 |
| 99 | LG | LW8024IVSM | Window | 8,500 | 425 kWh/season | $78 |
| 100 | Midea Most Efficient | MWEUTW-08CRFN8-BCN1 | Through-the-wall | 8,000 | 425.5 kWh/season | $78 |
| 101 | Seasons Most Efficient | ST08VB1 | Through-the-wall | 8,000 | 425.5 kWh/season | $78 |
| 102 | Midea Most Efficient | MAT08R1FWTK | Through-the-wall | 8,000 | 425.5 kWh/season | $78 |
| 103 | Midea Most Efficient | MAT08R1SWTK | Through-the-wall | 8,000 | 425.5 kWh/season | $78 |
| 104 | Brothers Most Efficient | 102378 | Through-the-wall | 8,000 | 425.5 kWh/season | $78 |
| 105 | Midea Most Efficient | MT08VB1 | Through-the-wall | 8,000 | 425.5 kWh/season | $78 |
| 106 | Frigidaire Most Efficient | FHTC085WC1 | Through-the-wall | 8,000 | 425.5 kWh/season | $78 |
| 107 | Perfect Aire Most Efficient | 1PATWV8000 | Through-the-wall | 8,000 | 425.5 kWh/season | $78 |
| 108 | DuraSTAR Most Efficient | DRTAC081XVB1 | Through-the-wall | 8,000 | 425.5 kWh/season | $78 |
| 109 | Midea | MWEUWA-08CRFN8-BCM7 | Window | 7,800 | 427 kWh/season | $78 |
| 110 | Midea | MAW08S1KWT-A | Window | 7,800 | 427 kWh/season | $78 |
| 111 | Vissani | VAW08V1AWTS | Window | 7,800 | 427 kWh/season | $78 |
| 112 | Seasons | SW08VB1 | Window | 7,800 | 427 kWh/season | $78 |
| 113 | Midea | MAW08V1SWBL-T | Window | 7,800 | 427 kWh/season | $78 |
| 114 | Midea | MAW08V1SWWT-T | Window | 7,800 | 427 kWh/season | $78 |
| 115 | Frigidaire | FHWC074WF1 | Window | 7,800 | 427 kWh/season | $78 |
| 116 | Frigidaire | FHWC076WF1 | Window | 7,800 | 427 kWh/season | $78 |
| 117 | Perfect Aire | 1PACV8000 | Window | 7,800 | 427 kWh/season | $78 |
| 118 | BLACK+DECKER | BDM078C | Window | 7,800 | 427 kWh/season | $78 |
| 119 | GE | AWHV07***# | Window | 7,800 | 427 kWh/season | $78 |
| 120 | Hisense | AW-08TW1RBGUE75 | Window | 7,900 | 432.5 kWh/season | $79 |
| 121 | Hisense | 143-1381-6 | Window | 7,900 | 432.5 kWh/season | $79 |
| 122 | GREE Most Efficient | GJH09BW-A6DRNL1B | Window | 9,300 | 433.2 kWh/season | $79 |
| 123 | GE | AWGP08W**# | Window | 8,000 | 454.5 kWh/season | $83 |
| 124 | GREE Most Efficient | GJH09BW-A6DRNL1A | Window | 9,300 | 461.9 kWh/season | $85 |
| 125 | Kinghome Most Efficient | KHWA09IN | Window | 9,300 | 461.9 kWh/season | $85 |