Natural Light SAF65G Solar Gable Fan
#1 in Gable mountFull review
The strongest gable fan here, for a big attic with a large gable vent. The price only makes sense if the lifetime warranty matters.
Amazon $864.70$864.70
The Natural Light SAF65G Solar Gable Fan is the better solar attic fan overall, rated 3.8 to 3.7. The Natural Light SAF65G Solar Gable Fan leads on warranty and panel. The QuietCool AFG SLR-40 Solar Gable Fan wins on features. The QuietCool AFG SLR-40 Solar Gable Fan costs $505.70 less ($359 vs $864.70).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
QuietCool AFG SLR-40 Solar Gable Fan
#2 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
Which should you buy?
- Choose the Natural Light SAF65G Solar Gable Fan for warranty (lifetime warranty vs 15-year warranty) and panel (65 W panel vs 40 W panel).
- Choose the QuietCool AFG SLR-40 Solar Gable Fan for features (thermostat, AC backup, separate or tilting panel vs separate or tilting panel).
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 | Natural Light SAF65G Solar Gable Fan | QuietCool AFG SLR-40 Solar Gable Fan |
|---|---|---|
| Overall rating | 3.8/5 | 3.7/5 |
| Value 25% | 21 $0.41 per CFM ($864.70, 2,105 CFM) | 54 $0.23 per CFM ($359, 1,566 CFM) |
| Airflow 15% | 79 2,105 CFM | 51 1,566 CFM |
| Panel 20% | 100 65 W panel | 60 40 W panel |
| Features 15% | 30 separate or tilting panel | 100 thermostat, AC backup, separate or tilting panel |
| Warranty 25% | 100 lifetime warranty | 58 15-year warranty |
Specifications
| Natural Light SAF65G Solar Gable Fan | QuietCool AFG SLR-40 Solar Gable Fan | |
|---|---|---|
| Airflow | ||
| Mount | Gable | Gable |
| Airflow | 2,105 CFM | 1,566 CFM |
| Attic area | 3,350 sq ft | 2,000 sq ft |
| Motor | DC | 24V brushless DC, IP67 |
| Power | ||
| Panel | 65 W | 40 W |
| Separate or tilting panel | Yes | Yes |
| Thermostat | No | Yes |
| AC backup | No | Yes |
| Build | ||
| Warranty | Lifetime | 15 years |