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
The Windmill AC WhisperTech 8,000 BTU is the better air conditioner overall, rated 3.9 to 3.8. The Windmill AC WhisperTech 8,000 BTU leads on value. The Frigidaire Gallery 8,000 BTU Inverter wins on quiet. The Windmill AC WhisperTech 8,000 BTU costs $70.99 less ($359 vs $429.99).
Frigidaire Gallery 8,000 BTU Inverter
#6 in WindowFull review
A quiet, efficient bedroom unit for rooms up to 350 sq ft. It’s worth the premium if low noise matters most.
Amazon $429.99$429.99
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 Windmill AC WhisperTech 8,000 BTU for value ($44.88 per 1,000 BTU (certified) vs $53.75 per 1,000 BTU (certified)).
- Choose the Frigidaire Gallery 8,000 BTU Inverter for 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 | Windmill AC WhisperTech 8,000 BTU | Frigidaire Gallery 8,000 BTU Inverter |
|---|---|---|
| Overall rating | 3.9/5 | 3.8/5 |
| Value 30% | 64 $44.88 per 1,000 BTU (certified) | 48 $53.75 per 1,000 BTU (certified) |
| Efficiency 30% | 73 CEER 15 | 73 CEER 15 |
| Quiet 15% | 89 42 dB on low (maker rating) | 100 40 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
| Windmill AC WhisperTech 8,000 BTU | Frigidaire Gallery 8,000 BTU Inverter | |
|---|---|---|
| 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 |
| Dehumidifying | - | 50.4 pints/day |
| Noise | 42 dB | 40 to 50 dB |
| Efficiency and power | ||
| CEER | 15 Btu/Wh | 15 Btu/Wh |
| Certified by | ENERGY STAR | ENERGY STAR |
| ENERGY STAR | Yes | Yes |
| Power | 740 W | 690 W |
| Voltage | 115 V | 115 V |
| Current | 6.8 A | 8.8 A |
| Refrigerant | R-32 | R-32 |
| Controls and fit | ||
| Wi-Fi app | Yes | Yes |
| Remote | Yes | Yes |
| Window width | 23 to 37 in wide | 24 to 38.8 in wide |
| Dimensions | 13.3 x 19.3 x 22.5 in | 13.5 x 19.2 x 22.0 in |
| Weight | 61 lb | 53.1 lb |
| Warranty | 1 years | 1 years |