Solar crawl space fans and solar foundation vent fans. Small. Powerful. Versatile. Effective.
Solar Crawl Space Vent Fans gradually pull the wet and musty air out, allowing dryer, fresher daytime outdoor air to replace it, absorbing moisture and odors. This cycle repeats itself several times every day, all year, gradually drying and ventilating the crawl space.
The fans automatically shut down at night, during rain/snow, during fog, and during heavy cloud cover. Insulation values for the floor above improve and the indoor environment improves, too, using free sunlight.
We deliberately make CSF fans as exhaust fans so that there is no chance to push “bad” air from the crawl space into the living areas above.
We also deliberately make them smaller, lower power fans so that there is no chance of pulling air out of the living area, which could also dangerously back draft furnaces, fired water heaters, kitchen vents, bathroom vents, and other exhaust ducts.
If more airflow is needed, please contact us at firstname.lastname@example.org about a specific custom CSF arrangement for the specific building. We make custom synchronized push-pull (supply-exhaust) balanced cross-flow solar crawl space fans for larger spaces.
CSF 210 Basic