An extra solar-powered fan can be added as an upgrade to any Growing Dome® greenhouse kit. The kit for the 42' Growing Dome includes the 14″ gable fan, thermostat, shutter, univent piston, 45 Watt solar panel, exterior hood, 25 feet of UV/weather-resistant wiring, and hardware. The maximum airflow rating is 1925 CFM (Cubic Feet per Minute).
Add one or, a few, to your Growing Dome to provide additional cooling, airflow, and ventilation. These reliable fans come with a lifetime warranty.