The Remington Solar 30W Solar Attic Fan is the better solar attic fan overall, rated 3.7 to 3.2. The Remington Solar 30W Solar Attic Fan leads on features. The OmniPV OP-SAF-40 Hybrid Solar Attic Fan wins on panel. The OmniPV OP-SAF-40 Hybrid Solar Attic Fan costs $98.10 less ($299.90 vs $398).
For a homeowner who wants a fan to fit once and forget, with a lifetime warranty and humidity control. Budget fans move more air per dollar but carry little or no warranty.
Amazon $398A hybrid roof fan with a thermostat for a medium attic at a fair price. The newer 50 W model is the better buy if the price gap stays small.
Amazon $299.90Prices 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.
Each factor is scored 0-100 against the same fixed reference points for every roof mount solar attic fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | Remington Solar 30W Solar Attic Fan | OmniPV OP-SAF-40 Hybrid Solar Attic Fan |
|---|---|---|
| Overall rating | 3.7/5 | 3.2/5 |
| Value 25% | 40 $0.29 per CFM ($398, 1,350 CFM credited of 1,550 claimed (45 per panel watt)) | 72 $0.17 per CFM ($299.90, 1,800 CFM credited of 2,100 claimed (45 per panel watt)) |
| Airflow 15% | 39 1,350 CFM credited of 1,550 claimed (45 per panel watt) | 63 1,800 CFM credited of 2,100 claimed (45 per panel watt) |
| Panel 20% | 40 30 W panel | 60 40 W panel |
| Features 15% | 100 thermostat, AC backup, separate or tilting panel | 70 thermostat, AC backup |
| Warranty 25% | 100 lifetime warranty | 0 warranty not published, scored as none |
| Remington Solar 30W Solar Attic Fan | OmniPV OP-SAF-40 Hybrid Solar Attic Fan | |
|---|---|---|
| Airflow | ||
| Mount | Roof | Roof |
| Airflow | 1,550 CFM | 2,100 CFM |
| Attic area | 2,000 sq ft | - |
| Motor | brushless DC | brushless DC |
| Power | ||
| Panel | 30 W | 40 W |
| Separate or tilting panel | Yes | - |
| Thermostat | Yes | Yes |
| AC backup | Yes | Yes |
| Build | ||
| Weight | 30 lb | 17.2 lb |
| Warranty | Lifetime | - |
