Maxx Air CX1025SOL Solar Attic Fan
#17 in Roof mountFull review
A plain solar only roof fan for a small attic. Other fans with bigger panels and adapters cost less.
Amazon $369.99$369.99
The Maxx Air CX1025SOL Solar Attic Fan is the better solar attic fan overall, rated 2.3 to 1.9. The Maxx Air CX1025SOL Solar Attic Fan leads on panel and features. The Master Flow ERVSOLAR Solar Roof Vent costs $80.04 less ($289.95 vs $369.99).
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.
Master Flow ERVSOLAR Solar Roof Vent
#20 in Roof mountFull review
For a small attic where a roofing brand warranty with labor cover matters more than airflow per dollar.
Amazon $289.95$289.95
Which should you buy?
- Choose the Maxx Air CX1025SOL Solar Attic Fan for panel (25 W panel vs 15 W panel) and features (thermostat vs separate or tilting 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 | Maxx Air CX1025SOL Solar Attic Fan | Master Flow ERVSOLAR Solar Roof Vent |
|---|---|---|
| Overall rating | 2.3/5 | 1.9/5 |
| Value 25% | 29 $0.36 per CFM ($369.99, 1,030 CFM) | 5 $0.55 per CFM ($289.95, 525 CFM) |
| Airflow 15% | 23 1,030 CFM | 0 525 CFM |
| Panel 20% | 30 25 W panel | 10 15 W panel |
| Features 15% | 40 thermostat | 30 separate or tilting panel |
| Warranty 25% | 0 warranty not published, scored as none | 17 5-year warranty |
Specifications
| Maxx Air CX1025SOL Solar Attic Fan | Master Flow ERVSOLAR Solar Roof Vent | |
|---|---|---|
| Airflow | ||
| Mount | Roof | Roof |
| Airflow | 1,030 CFM | 525 CFM |
| Attic area | 1,000 sq ft | 800 sq ft |
| Fan | 12 in | - |
| Motor | brushless DC, IP68 | 24V brushless DC |
| Power | ||
| Panel | 25 W | 15 W |
| Separate or tilting panel | No | Yes |
| Thermostat | Yes | - |
| AC backup | - | No |
| Build | ||
| Weight | - | 20 lb |
| Warranty | - | 5 years |