Best HVAC · 2026
Best Large Window Air Conditioners (≥14,000 BTU) 2026
A big, open room needs real cooling power. These are window units of 14,000 BTU and up — enough for great rooms and open-plan spaces of roughly 550 square feet or more (ENERGY STAR’s sizing chart). Many draw more than a standard outlet supplies, so check the voltage. We rank the 82 qualifying units by CEER, then cooling BTU.
Data current as of July 12, 2026 · 82 units · source ENERGY STAR + DOE
Our picks
The highest CEER in this field (16) — the least electricity for the same cooling.
The lowest computed running cost ($124/yr) at U.S. average electricity prices.
The most cooling (18,000 BTU, ~1,000 sq ft) among the more efficient units you can buy on Amazon today.
Each pick is chosen by a single verifiable metric (stated above) — not an opinion score. Where we can, the pick is a unit you can buy on Amazon today (10 of the 82 here are); we say so when the top of the full field is not for sale. Every unit here is 14,000 BTU or more — sized for rooms of about 550 sq ft and up. Prefer a different priority? Re-sort the full field below. Units sold under several brand names appear once. Not sure a window unit is even the right type for your room? Take the 60-second wizard.
The full field — sortable
Click any column to re-sort. Every row links to that unit's full Verified Label with computed running cost.
| Model | CEER | Cooling BTU | Room ~sq ft | $/yr | H×W×D (in) | Type | Buy | |
|---|---|---|---|---|---|---|---|---|
 | Midea MAW18S2KWT-Awindow AC · Most Efficient · inverter | 16 | 18,000 | 1,000 | $159 | 18×25×24 | Window | — |
| Midea MWCUWH-18CRFN8-MCP0window AC · Most Efficient · inverter | 16 | 18,000 | 1,000 | $159 | 18×25×24 | Window | — |
| Kühl KCVS16B30Bwindow AC · Most Efficient · inverter | 16 | 15,400 | 700 | $136 | 16×26×29 | Window | — |
| GE PWJV14Wwindow AC · Most Efficient · inverter | 16 | 14,000 | 700 | $124 | 15×20×21 | Window | — |
| Midea MWEUWA-14CRFN8-BCP0window AC · Most Efficient · inverter | 16 | 14,000 | 700 | $124 | 15×22×19 | Window | — |
 | TCL T14WV9Swindow AC · Most Efficient · inverter | 16 | 14,000 | 700 | $124 | 15×20×22 | Window | $630 |
| TCL T14WV9SBwindow AC · Most Efficient · inverter | 16 | 14,000 | 700 | $124 | 15×20×22 | Window | $630 |
| TCL W14WC72window AC · Most Efficient · inverter | 16 | 14,000 | 700 | $124 | 15×20×22 | Window | — |
| TCL W14WC72-Bwindow AC · Most Efficient · inverter | 16 | 14,000 | 700 | $124 | 15×20×22 | Window | — |
| Hisense AW2223TW3Wwindow AC · Most Efficient · inverter | 15 | 22,000 | 1,200 | $207 | 18×24×25 | Window | — |
| Frigidaire FHWW185WE2window AC · inverter | 15 | 18,000 | 1,000 | $169 | 18×24×25 | Window | — |
| Hisense AW1823TW3Wwindow AC · inverter | 15 | 18,000 | 1,000 | $169 | 18×24×25 | Window | — |
| Keplerx KBRC18RSVE2window AC · inverter | 15 | 18,000 | 1,000 | $169 | 18×24×25 | Window | — |
 | Keystone KSTAW182WAwindow AC · inverter | 15 | 18,000 | 1,000 | $169 | 18×24×25 | Window | $657 |
| Midea MAW18R2VWTwindow AC · inverter | 15 | 18,000 | 1,000 | $169 | 18×24×25 | Window | — |
| Midea MAW18RV1CWTwindow AC · inverter | 15 | 18,000 | 1,000 | $169 | 18×24×25 | Window | — |
| Midea MAW18S2VWT-Awindow AC · inverter | 15 | 18,000 | 1,000 | $169 | 18×24×25 | Window | — |
| Midea MWCUWH-18CRFN8-MCN10window AC · inverter | 15 | 18,000 | 1,000 | $169 | 18×24×25 | Window | — |
| Danby DAC140EBIBDBwindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | — |
 | ELEMENT EHWR14BEwindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | $549 |
| Frigidaire FHWW145WE1window AC · inverter | 15 | 14,000 | 700 | $132 | 15×19×22 | Window | — |
| GE Profile PWDV14Wwindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×19×22 | Window | — |
| Hisense AW1422TW1Wwindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×19×22 | Window | $549 |
| Keplerx KARC14RSVE1window AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | — |
 | Keystone KSTAW141WAwindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | $550 |
| Midea 1014634880window AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | — |
| Midea MAW14R1VWTwindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | — |
| Midea MAW14RV1CCWTwindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | — |
| Midea MAW14RV1CWTwindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | — |
 | Midea MAW14S1VWT-Awindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | $558 |
| Midea MAW14S1VWWT-Twindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | — |
| Midea MAW14V1YWT-Swindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | — |
| Midea MWCUWA-14CRFN8-BCN10window AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | — |
| Vissani VAWA14V4HWTwindow AC · inverter | 15 | 14,000 | 700 | $132 | 15×22×19 | Window | — |
| LG LW1822IVSMwindow AC · inverter | 14.7 | 18,000 | 1,000 | $173 | 18×26×31 | Window | — |
| LG LW1522FVSMwindow AC · inverter | 14.7 | 14,000 | 700 | $135 | 15×24×29 | Window | — |
| LG LW1522IVSMwindow AC · inverter | 14.7 | 14,000 | 700 | $135 | 15×24×29 | Window | — |
| Kühl KCVM18B30Bwindow AC · Most Efficient · inverter | 14.6 | 20,900 | 1,200 | $202 | 18×26×29 | Window | — |
| LG LW2422IVSM(208V)window AC · Most Efficient · inverter | 14.5 | 23,500 | 1,500 | $229 | 18×26×31 | Window | — |
| LG LW2422IVSM(230V)window AC · Most Efficient · inverter | 14.5 | 23,500 | 1,500 | $229 | 18×26×31 | Window | — |
| Friedrich KCVM18B30Awindow AC · inverter | 14.4 | 19,100 | 1,000 | $187 | 18×26×29 | Window | — |
 | Friedrich CCV18A30Awindow AC · inverter | 14.4 | 18,000 | 1,000 | $177 | 15×26×28 | Window | $850 |
| HEMA DS-2W1822CIwindow AC · inverter | 14.4 | 18,000 | 1,000 | $177 | 15×26×28 | Window | — |
| TCL H18W4KWwindow AC · inverter | 14.4 | 18,000 | 1,000 | $177 | 15×26×28 | Window | — |
| TCL H18W4KW-CAwindow AC · inverter | 14.4 | 18,000 | 1,000 | $177 | 15×26×28 | Window | — |
| TCL T18WQ2Swindow AC · inverter | 14.4 | 18,000 | 1,000 | $177 | — | Window | — |
| Whirlpool WHAW-181INwindow AC · inverter | 14.4 | 18,000 | 1,000 | $177 | 21×30×29 | Window | — |
| Friedrich KCVS16B30Awindow AC · inverter | 14.4 | 16,200 | 700 | $159 | 16×26×29 | Window | — |
| Friedrich CCV15A10Awindow AC · inverter | 14.4 | 15,000 | 700 | $147 | 15×26×28 | Window | $749 |
| TCL H15W4KWwindow AC · inverter | 14.4 | 15,000 | 700 | $147 | 15×26×28 | Window | — |
| TCL H15W4KW-CAwindow AC · inverter | 14.4 | 15,000 | 700 | $147 | 15×26×28 | Window | — |
| TCL T15WQ2Swindow AC · inverter | 14.4 | 15,000 | 700 | $147 | — | Window | — |
| Whirlpool WHAW-151INwindow AC · inverter | 14.4 | 15,000 | 700 | $147 | 21×30×29 | Window | — |
| Kühl+ KHVL28B35Bwindow AC · Most Efficient · inverter | 14.2 | 28,300 | 1,500 | $281 | 20×28×36 | Window | — |
| Kühl KCVM24B30Bwindow AC · Most Efficient · inverter | 13.9 | 23,100 | 1,400 | $235 | 18×26×29 | Window | — |
| Kühl KCVL28B30Bwindow AC · Most Efficient · inverter | 13.8 | 28,900 | 1,500 | $296 | 20×28×36 | Window | — |
| Midea MAW24S2KWT-Awindow AC · Most Efficient · inverter | 13.8 | 24,000 | 1,500 | $246 | 18×25×24 | Window | — |
| Midea MAW24V2KYWT-Swindow AC · Most Efficient · inverter | 13.8 | 24,000 | 1,500 | $246 | 18×25×24 | Window | — |
| Midea MWCUWH-24CRFN8-MCM8window AC · Most Efficient · inverter | 13.8 | 24,000 | 1,500 | $246 | 18×25×24 | Window | — |
| Kühl KCVL36B30Bwindow AC · Most Efficient · inverter | 13.4 | 33,000 | 2,000 | $348 | 20×28×36 | Window | — |
| Comfort Aire RADS-253R03window AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Frigidaire FHWW245WE2window AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Keplerx KBRC24RSVE2window AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Keystone KSTAW242WAwindow AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Midea MAW24R2VWTwindow AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Midea MAW24RV1CWTwindow AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Midea MAW24S2VWT-Awindow AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Midea MAW24S2YWT-Swindow AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Midea MAW25R2VWTwindow AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Midea MWCUWH-24CRFN8-MCM3window AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Perfect aire 1PACV25000Ewindow AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | $964 |
| Sea Breeze WA324ZREBwindow AC · inverter | 13.3 | 24,000 | 1,500 | $255 | 18×24×25 | Window | — |
| Friedrich KCVL28B30Awindow AC · Most Efficient · inverter | 13.2 | 28,900 | 1,500 | $309 | 20×28×36 | Window | — |
| Friedrich KCVM24B30Awindow AC · inverter | 13 | 23,200 | 1,400 | $252 | 18×26×29 | Window | — |
| Friedrich CCV24A30Awindow AC · inverter | 12.7 | 24,000 | 1,500 | $267 | 15×26×28 | Window | — |
| TCL H24W4KWwindow AC · inverter | 12.7 | 24,000 | 1,500 | $267 | 15×26×28 | Window | — |
| TCL H24W4KW-CAwindow AC · inverter | 12.7 | 24,000 | 1,500 | $267 | 15×26×28 | Window | — |
| TCL T24WQ2Swindow AC · inverter | 12.7 | 24,000 | 1,500 | $267 | — | Window | — |
| Whirlpool WHAW-241INwindow AC · inverter | 12.7 | 24,000 | 1,500 | $267 | 21×30×29 | Window | — |
| Friedrich KHVL28B35Awindow AC · inverter | 12.6 | 28,200 | 1,500 | $316 | 20×28×36 | Window | — |
| Friedrich KHVM24B34Awindow AC · inverter | 12.6 | 22,900 | 1,400 | $257 | 18×26×29 | Window | — |
| Friedrich KCVL36B30Awindow AC · inverter | 12.2 | 34,100 | 2,500 | $395 | 20×28×36 | Window | — |
How the ranking works. We rank room air conditioners on CEER (Combined Energy Efficiency Ratio — the DOE test number), then cooling BTU. CEER is a certified metric, not a marketing term. Certification and specs come from ENERGY STAR and the DOE compliance database; running cost and suggested room size are computed by us from published ratings and EIA U.S. average electricity prices. Suggested room size comes from ENERGY STAR’s room AC sizing chart — sunny rooms, kitchens and rooms with more than two regular users need more. Identical units sold under several brand names are collapsed to one row. No star ratings, no paid placement. These are self-install units; the Buy column links Amazon only where the unit's own listing (its model number, or a rebadge's) was in stock on our last check, so some rows have none. Prices in that column are the live Amazon price on that check; they change. See methodology.