LG Dual Inverter 12,000 BTU
#6 in WindowFull review
A strong choice for a big living room or open-plan space. It’s efficient and quiet for its size if you can handle the 85 lb install.
Amazon $559$559
The LG Dual Inverter 12,000 BTU is the better air conditioner overall, rated 3.8 to 2.7. The LG Dual Inverter 12,000 BTU leads on efficiency, inverter & app and quiet. The LG 10,000 BTU Window AC wins on value. The LG 10,000 BTU Window AC costs $200 less ($359 vs $559).
LG 10,000 BTU Window AC
#18 in WindowFull review
A plain 10,000 BTU unit for a living room where noise and smart features don’t matter. Inverter models cost a bit more and run quieter and cheaper.
Amazon $359$359
Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the LG Dual Inverter 12,000 BTU for efficiency (CEER 15 vs CEER 12), inverter & app (inverter compressor, Wi-Fi app vs fixed-speed compressor, no app) and quiet (44 dB on low (maker rating) vs 53 dB on low (maker rating)).
- Choose the LG 10,000 BTU Window AC for value ($35.90 per 1,000 BTU (certified) vs $46.58 per 1,000 BTU (certified)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every window air conditioner; a clear win is highlighted. How we rank explains each one.
| Factor weight | LG Dual Inverter 12,000 BTU | LG 10,000 BTU Window AC |
|---|---|---|
| Overall rating | 3.8/5 | 2.7/5 |
| Value 30% | 61 $46.58 per 1,000 BTU (certified) | 80 $35.90 per 1,000 BTU (certified) |
| Efficiency 30% | 73 CEER 15 | 18 CEER 12 |
| Quiet 15% | 78 44 dB on low (maker rating) | 28 53 dB on low (maker rating) |
| Inverter & app 15% | 100 inverter compressor, Wi-Fi app | 0 fixed-speed compressor, no app |
| Warranty 10% | 0 1-year warranty | 0 1-year warranty |
Specifications
| LG Dual Inverter 12,000 BTU | LG 10,000 BTU Window AC | |
|---|---|---|
| Cooling | ||
| Type | Window | Window |
| Certified capacity | 12,000 BTU | 10,000 BTU |
| Room size (maker) | 550 sq ft | 450 sq ft |
| Inverter compressor | Yes | No |
| Heat | No | No |
| Dehumidifying | 86.4 pints/day | 64.8 pints/day |
| Noise | 44 to 58 dB | 53 to 55 dB |
| Efficiency and power | ||
| CEER | 15 Btu/Wh | 12 Btu/Wh |
| Certified by | ENERGY STAR | - |
| ENERGY STAR | Yes | No |
| Power | 1,020 W | 820 W |
| Voltage | 115 V | 115 V |
| Current | 9.1 A | 7.7 A |
| Refrigerant | R-32 | - |
| Controls and fit | ||
| Wi-Fi app | Yes | No |
| Voice assistants | Alexa, Google Assistant | - |
| Remote | Yes | Yes |
| Window width | 27 to 39 in wide | 23 to 36 in wide |
| Dimensions | 14.9 x 23.6 x 28.8 in | 12.4 x 19.6 x 19.4 in |
| Weight | 85 lb | 57 lb |
| Warranty | 1 years | 1 years |
| Sealed system warranty | - | 1 years |