QuietCool AFG SLR-40 Solar Gable Fan
#1 in Gable mountFull review
The best documented gable fan here, for an attic with a gable vent big enough to let its air out. Its long warranty and included adapter justify the price.
QuietCool $359$359
The QuietCool AFG SLR-40 Solar Gable Fan is the better solar attic fan overall, rated 3.7 to 3.1. The QuietCool AFG SLR-40 Solar Gable Fan leads on features. The VEVOR 14 in Solar Gable Fan costs $213.10 less ($145.90 vs $359).
VEVOR 14 in Solar Gable Fan
#4 in Gable mountFull review
A low cost gable fan for a garage, shop or small attic where a short warranty is acceptable.
Amazon $145.90$145.90
Prices were last checked November 2, 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 QuietCool AFG SLR-40 Solar Gable Fan for features (thermostat, AC backup, separate or tilting panel vs thermostat).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every gable mount solar attic fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | QuietCool AFG SLR-40 Solar Gable Fan | VEVOR 14 in Solar Gable Fan |
|---|---|---|
| Overall rating | 3.7/5 | 3.1/5 |
| Value 25% | 54 $0.23 per CFM ($359, 1,566 CFM) | 94 $0.11 per CFM ($145.90, 1,300 CFM) |
| Airflow 15% | 51 1,566 CFM | 37 1,300 CFM |
| Panel 20% | 60 40 W panel | 50 panel rating not published (neutral score used) |
| Features 15% | 100 thermostat, AC backup, separate or tilting panel | 40 thermostat |
| Warranty 25% | 58 15-year warranty | 0 warranty not published, scored as none |
Specifications
| QuietCool AFG SLR-40 Solar Gable Fan | VEVOR 14 in Solar Gable Fan | |
|---|---|---|
| Airflow | ||
| Mount | Gable | Gable |
| Airflow | 1,566 CFM | 1,300 CFM |
| Attic area | 2,000 sq ft | 1,850 sq ft |
| Fan | - | 14 in |
| Motor | 24V brushless DC, IP67 | - |
| Power | ||
| Panel | 40 W | - |
| Separate or tilting panel | Yes | - |
| Thermostat | Yes | Yes |
| AC backup | Yes | - |
| Build | ||
| Weight | - | 16.8 lb |
| Warranty | 15 years | - |