The Remington Solar 30W Solar Attic Fan is the better solar attic fan overall, rated 3.7 to 3.4. The HGinline 40W Solar Attic Fan wins on panel. The HGinline 40W Solar Attic Fan costs $98.01 less ($299.99 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 flexible hybrid fan with speed control for a buyer who wants night running on a budget. The lack of a stated warranty is the main risk.
Amazon $299.99Prices 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 | HGinline 40W Solar Attic Fan |
|---|---|---|
| Overall rating | 3.7/5 | 3.4/5 |
| Value 25% | 40 $0.29 per CFM ($398, 1,350 CFM credited of 1,550 claimed (45 per panel watt)) | 71 $0.17 per CFM ($299.99, 1,800 CFM credited of 2,000 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 2,000 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 | 100 thermostat, AC backup, separate or tilting panel |
| Warranty 25% | 100 lifetime warranty | 0 warranty not published, scored as none |
| Remington Solar 30W Solar Attic Fan | HGinline 40W Solar Attic Fan | |
|---|---|---|
| Airflow | ||
| Mount | Roof | Roof |
| Airflow | 1,550 CFM | 2,000 CFM |
| Attic area | 2,000 sq ft | 2,500 sq ft |
| Fan | - | 12 in |
| Motor | brushless DC | brushless DC |
| Power | ||
| Panel | 30 W | 40 W |
| Separate or tilting panel | Yes | Yes |
| Thermostat | Yes | Yes |
| AC backup | Yes | Yes |
| Build | ||
| Weight | 30 lb | 26.5 lb |
| Warranty | Lifetime | - |
