OmniPV OP-SAF-50 Hybrid Solar Attic Fan
#3 in Roof mountFull review
For a large attic where the buyer wants the most claimed airflow and an adjustable panel at a mid range price, without warranty assurance.
Amazon $350$350
The OmniPV OP-SAF-50 Hybrid Solar Attic Fan is the better solar attic fan overall, rated 3.7 to 3.4. The OmniPV OP-SAF-50 Hybrid Solar Attic Fan leads on panel. The HGinline 40W Solar Attic Fan costs $50.01 less ($299.99 vs $350).
HGinline 40W Solar Attic Fan
#6 in Roof mountFull review
A 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 $299.99$299.99
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 OmniPV OP-SAF-50 Hybrid Solar Attic Fan for panel (50 W panel vs 40 W panel).
Scores side by side
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 | OmniPV OP-SAF-50 Hybrid Solar Attic Fan | HGinline 40W Solar Attic Fan |
|---|---|---|
| Overall rating | 3.7/5 | 3.4/5 |
| Value 25% | 75 $0.16 per CFM ($350, 2,250 CFM credited of 2,850 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% | 87 2,250 CFM credited of 2,850 claimed (45 per panel watt) | 63 1,800 CFM credited of 2,000 claimed (45 per panel watt) |
| Panel 20% | 80 50 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% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| OmniPV OP-SAF-50 Hybrid Solar Attic Fan | HGinline 40W Solar Attic Fan | |
|---|---|---|
| Airflow | ||
| Mount | Roof | Roof |
| Airflow | 2,850 CFM | 2,000 CFM |
| Attic area | 4,000 sq ft | 2,500 sq ft |
| Fan | - | 12 in |
| Motor | brushless DC | brushless DC |
| Power | ||
| Panel | 50 W | 40 W |
| Separate or tilting panel | Yes | Yes |
| Thermostat | Yes | Yes |
| AC backup | Yes | Yes |
| Build | ||
| Weight | - | 26.5 lb |