There is a thermostat available.  However, in our Southern Florida climate, 9 months out of the year, our days (sun) are very warm to hot. 

In climates where there is a significant winter, you would want to make sure that any heat buildup in your attic isn’t wasted and continues to aid the heating of your home.  In Florida, even if there is a cold night, when the sun is up, the air outside is warmer than the cooler nighttime air in the attic.  By exhausting the cooler air, the warmer air will be drawn in the attic giving your home an advantage to beating the chill.

Need More Information About A Solar Attic Fan Thermostat?
Contact Fafco Solar or Call 239-574-1500.