Schaefer Greenhouse Exhaust Fan
This durable fan motor is totally enclosed for resistance to greenhouse moisture. The wire mesh blade guard is vinyl-coated. The shutter is made of rustproof exterior grade PVC with aerodynamic vanes on nylon bearings that never need lubrication. 115 volts. Select from 3 sizes, no power cord, ready to hard wire.
* For automatic operation, order a Greenhouse Thermostat separately. (E3124-HW Hard-Wire.)
* To enable seasonal adjustments, order a Fan Speed Control separately. (E3131 Hard-Wire.)
Airflow quantifies the amount of air a fan delivers and is measured in CFM = cubic feet per minute. The higher the CFM, the more effective the fan, and the more air it moves. (See Charley's Tip PDF below for how to select fan and shutter size for your greenhouse.)
|12 inch Blade||760 CFM||1/30||0.9|
|16 inch Blade||1250 CFM||1/10||1.3|
|20 inch Blade||3000 CFM||1/3||3.8|
Rough opening should be square and 5/8" larger than fan size.
(For your protection, all electrical connections must be made by a qualified electrical contractor.)