TCL Q-Series 8,000 BTU Inverter
#2 in WindowFull review
A good-value smart inverter unit for a bedroom or office up to about 350 sq ft. It’s quieter and cheaper to run than TCL’s fixed-speed models for little extra money.
Amazon $259.95$259.95
The TCL Q-Series 8,000 BTU Inverter is the better air conditioner overall, rated 4.2 to 3.9. The TCL Q-Series 8,000 BTU Inverter leads on value and quiet. The TCL Q-Series 8,000 BTU Inverter costs $99.05 less ($259.95 vs $359).
Windmill AC WhisperTech 8,000 BTU
#3 in WindowFull review
A stylish, quiet inverter unit for a bedroom up to 350 sq ft. It’s priced close to the big-brand inverter models.
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 TCL Q-Series 8,000 BTU Inverter for value ($32.49 per 1,000 BTU (certified) vs $44.88 per 1,000 BTU (certified)) and quiet (40 dB on low (maker rating) vs 42 dB on low (maker rating)).
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 | TCL Q-Series 8,000 BTU Inverter | Windmill AC WhisperTech 8,000 BTU |
|---|---|---|
| Overall rating | 4.2/5 | 3.9/5 |
| Value 30% | 86 $32.49 per 1,000 BTU (certified) | 64 $44.88 per 1,000 BTU (certified) |
| Efficiency 30% | 73 CEER 15 | 73 CEER 15 |
| Quiet 15% | 100 40 dB on low (maker rating) | 89 42 dB on low (maker rating) |
| Inverter & app 15% | 100 inverter compressor, Wi-Fi app | 100 inverter compressor, Wi-Fi app |
| Warranty 10% | 0 1-year warranty | 0 1-year warranty |
Specifications
| TCL Q-Series 8,000 BTU Inverter | Windmill AC WhisperTech 8,000 BTU | |
|---|---|---|
| Cooling | ||
| Type | Window | Window |
| Certified capacity | 8,000 BTU | 8,000 BTU |
| Room size (maker) | 350 sq ft | 350 sq ft |
| Inverter compressor | Yes | Yes |
| Heat | No | No |
| Noise | 40 dB | 42 dB |
| Efficiency and power | ||
| CEER | 15 Btu/Wh | 15 Btu/Wh |
| Certified by | ENERGY STAR | ENERGY STAR |
| ENERGY STAR | Yes | Yes |
| Power | - | 740 W |
| Voltage | 115 V | 115 V |
| Current | - | 6.8 A |
| Refrigerant | R-32 | R-32 |
| Controls and fit | ||
| Wi-Fi app | Yes | Yes |
| Voice assistants | Alexa, Google Assistant, Apple Home (Matter) | - |
| Remote | Yes | Yes |
| Window width | 25 to 36 in wide | 23 to 37 in wide |
| Dimensions | 13.39 x 20.67 x 19.25 in | 13.3 x 19.3 x 22.5 in |
| Weight | 56.2 lb | 61 lb |
| Warranty | 1 years | 1 years |