Remington Solar Builder Series 40W
#1 in Roof mountFull review
For a larger attic where the owner wants night running and a lifetime fan warranty in one box. The price is hard to justify on airflow alone.
Amazon $489$489
3.7/5
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.
- 1,550 CFMAirflow
- 30 WPanel
- 2,000 sq ftAttic area
- LifetimeWarranty
Check price at Amazon$398
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Lifetime parts warranty, the longest in the category
- Thermostat and humidistat switch it on for heat in summer and damp in winter
- Tilting panel can be angled toward the sun on a north or east facing roof
- Comes with a Texas windstorm document for coastal building codes
Cons
- Night running needs the hybrid adapter, about $120 more
- Costs more per CFM than the budget fans
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its mount. How we rank explains each one.
Specifications
| Model number | SF30-BLK |
|---|---|
| Airflow | |
| Mount | Roof |
| Airflow | 1,550 CFM |
| Attic area | 2,000 sq ft |
| Motor | brushless DC |
| Power | |
| Panel | 30 W |
| Separate or tilting panel | Yes |
| Thermostat | Yes |
| AC backup | Yes |
| Build | |
| Weight | 30 lb |
| Warranty | Lifetime |
Alternatives in this mount
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
VEVOR 42W Solar Attic Fan
#4 in Roof mountFull review
A cheap, feature rich hybrid fan for a buyer who will accept an unproven airflow claim and no stated warranty.
Amazon $236.90$236.90
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