Electrically Operated
A typical garage exhaust fan is electrically operated either by way of a basic hand-operated switch or by a temperature-regulated thermostat. A simple power cord carries electrical current to and from a garage exhaust fan and enables the exhaust fan motor, the driving force behind garage exhaust fan operation, to function.
Spinning Fan Blades
A garage exhaust fan is a very simple device. A small motor is attached to a series of short, tapered fan blades, which spin when the exhaust fan motor is in operation. The spinning motion of the fan blades, which create suction, or a small area of low pressure, pulls heated air from inside the garage and radiates it into the outside air. This creates an air current flow that keeps the air in the garage from stagnating and also lowers the temperature of the air inside the garage.
Exhaust Fan Position
For a fan to function properly and to effectively lower the temperature in a garage, it must be mounted on or near a garage ceiling. Hot air rises and congregates towards the upper reaches of a sealed room, including garages and basements. Therefore, to effectively exhaust this hot, stale air, a garage exhaust fan must be installed in the upper reaches of a garage.
Thermostatic Garage Exhaust Fans
The majority of garage exhaust fans are controlled by a small thermostatic switch located inside the exhaust fan housing. This switch, which is wired to the main electrical power source, gets tripped, or activated, once a predetermined temperature is reached. Once activated, the garage exhaust fan turns on and ventilates the air inside the garage until the temperature drops and the fan becomes deactivated.
Tags: garage exhaust, inside garage, blades which, exhaust motor, garage exhaust