OmniPV OP-SWF-40 Solar Gable Fan
#2 in Gable mountFull review
A hybrid gable fan with a strong airflow claim at a mid range price, for a buyer who can live without a stated warranty.
Amazon $268.99$268.99
The OmniPV OP-SWF-40 Solar Gable Fan rates 3.3 among gable mount solar attic fans; the OmniPV OP-SAF-40 Hybrid Solar Attic Fan rates 3.2 among roof mount ones. The OmniPV OP-SWF-40 Solar Gable Fan costs $30.91 less ($268.99 vs $299.90).
OmniPV OP-SAF-40 Hybrid Solar Attic Fan
#8 in Roof mountFull review
A 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 $299.90$299.90
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.
Scores side by side
These two sit in different mount classes (gable mount and roof mount), and each is scored against the reference points for its own class, so a rating says how well each does among its own mount peers. How we rank explains each factor.
| Factor weight | OmniPV OP-SWF-40 Solar Gable Fan | OmniPV OP-SAF-40 Hybrid Solar Attic Fan |
|---|---|---|
| Overall rating | 3.3/5 | 3.2/5 |
| Value 25% | 78 $0.15 per CFM ($268.99, 1,800 CFM credited of 2,100 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% | 63 1,800 CFM credited of 2,100 claimed (45 per panel watt) | 63 1,800 CFM credited of 2,100 claimed (45 per panel watt) |
| Panel 20% | 60 40 W panel | 60 40 W panel |
| Features 15% | 70 thermostat, AC backup | 70 thermostat, AC backup |
| Warranty 25% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| OmniPV OP-SWF-40 Solar Gable Fan | OmniPV OP-SAF-40 Hybrid Solar Attic Fan | |
|---|---|---|
| Airflow | ||
| Mount | Gable | Roof |
| Airflow | 2,100 CFM | 2,100 CFM |
| Motor | brushless DC | brushless DC |
| Power | ||
| Panel | 40 W | 40 W |
| Thermostat | Yes | Yes |
| AC backup | Yes | Yes |
| Build | ||
| Weight | 12 lb | 17.2 lb |