J&D Whirl-Wind Galvanized Box Fan

A galvanized square fan offers the airflow plants, humans and equipment need with efficient sizing and energy use. The high air velocity of these box fans provides the maximum cooling effect for the lowest electrical cost. They’re perfect for cooling plants and animals, controlling insects, drying bedding or creating a comfortable work environment for your employees.

We’ll help you find the best box fan for commercial or DIY applications. Our fans feature and 18-gauge galvanized housing, heavy-duty venturi frames and blades, balanced high-output blades and removable screens for easy cleaning. With box fan sizes ranging from small 24-inch fans to a 50-inch large box fan, plus a choice of three or six blades and 115/230V or 230/460V power, the right fan is available with a Low Price Guarantee. See the full specifications below along with how to calculate the correct box fan CFM for your structure.

Galvanized Box Fan Features:

• 18-gauge galvanized housing.
• Heavy-duty venturi, frame and blades.
• Enclosed with 1″ x 2″ 12-gauge galvanized wire mesh that is hot-dipped after welding.
• Automatic spring-loaded belt tightener on belt drive (36″ and 50″ models).
• Poly guard clips to reduce vibration for quieter performance (shown to left).
• Removable screens make cleaning a breeze.
• Balanced high-output three or six galvanized blades are available on 24- to 50-inch models and a 3-Blade Cast Aluminum option on 50-inch units.
• Exceptional air pattern for maximum cooling and circulation.
• Hanging brackets are attached for easy installation (shown to left).
• Belt drive 36-inch and 50-inch units are complete with a heavy-duty spring belt tensioner. Bearings are eccentric locking, pre-lubricated, permanently sealed and rubber mounted to improve smooth operation and reduce blade fatigue.
• Totally enclosed, maintenance-free, high-efficiency motors have completely sealed ball bearings, UL and ULC certification and built-in automatic thermal overload protection. Covered by a full two-year warranty.

Dimensions

Available in 24-inch, 36-inch and 50-inch models.

Fan Performance Specifications

Select your desired fan model from the drop-down box at the top right of the page. Sizing information is below.

DD – Direct Drive, BD – Belt Drive, CA – Cast Aluminum

How do I size my fan and shutters system?

1. The first thing that you need to determine is the amount of air required. This is stated in CFM (Cubic Feet of air per Minute).

2. Use the following formula to determine the CFM required for your greenhouse:
CFM = Length x Width x Height
Example: Greenhouse 12′ wide x 24′ long x 12′ high requires 3,456 CFM (12 x 24 x 12 = 3,456)

3. Reference the above table. Select the appropriate combination of fan(s) to achieve the necessary CFM rating. Be sure to match the total CFM output for your exhaust fan(s) to the CFM ratings for your Inlet Shutters.

Click here to view fan installation detail