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Frequently Asked Questions View all FAQs
How do you order the correct replacement parts?

Before ordering replacement parts, make sure you have the fan model and serial number.

Where can I find instructions to wire a motor on my fan?

The nameplate of the motor includes a wiring diagram. Wiring diagrams can also be found beneath the motor image in our Buy Parts section. Simply click the wiring diagram icon to view it.

Can I install a thermostat?

Yes, but only if the thermostat has a simple on/off operation. Please note: if the thermostat varies the amount of voltage delivered, it will damage the motor and void the warranty.

Can I install my whole house fan vertically?

Comfort Cooler (CC) series whole-house fans may be mounted vertically, however, the AS and CSS shutters will not function properly in the vertical position. We do not carry a ceiling shutter for vertical installation. Vertical installation instructions.

Quality Products

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PFG Series Agricultural Fans

SINCE 1948.

PFG Series Agricultural Fans

The Triangle PFG Series agricultural fans are an innovative solution for livestock facilities, designed to improve air quality and maintain optimal temperatures. The series offers two models, belt-driven and direct drive, to meet the unique requirements of each operation. The all-galvanized construction of the Triangle PFG Series fans provides robustness and longevity in challenging agricultural environments.

Livestock producers, including those in poultry, swine, and cattle industries, will find the Triangle PFG Series fans an indispensable tool in maintaining a healthy and comfortable environment for their animals. The fans provide efficient and reliable air regulation, reducing the presence of stagnant air and mitigating heat stress, ultimately creating a more favorable living space.

The Triangle PFG Series fans have been engineered for ease of installation and maintenance, with functionality and durability at the forefront of design considerations. These fans are an excellent choice for growers who demand the highest level of performance for their operation. Whether for poultry farms, swine production, or cattle growth, the Triangle PFG Series agricultural fans offer the air control solutions necessary for maintaining optimal animal health and well-being.


  • Rugged heavy gauge galvanized housing, frame and blade
  • Galvanized welded bird screen on both front and back
  • Rolled inlet venturi for efficient air flow
  • Totally enclosed motor
  • Single-phase fans are factory wired 230 volt and provided with a power cord with molded plug
  • Three-phase models available
  • Belt drive fans are equipped with Triangle’s “X-Wing” low maintenance belt tensioner, which extends the life of the belt and motor
  • Consult factory for 115V models

See full specifications for sizing and performance data

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