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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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Hazardous Location Environments

In hazardous environments, safety and compliance are critical. Triangle Engineering’s hazardous location fans ensure that your facility remains safe, productive, and compliant.

Hazardous Location Environments

In hazardous environments, safety and compliance are critical. Triangle Engineering’s hazardous location fans are designed to provide reliable ventilation and cooling in areas where flammable gases, vapors, or combustible dusts are present. Our fans ensure that your facility remains safe, productive, and compliant.

Built for demanding applications, our hazardous location fans feature spark-resistant aluminum blades, explosion-proof motors, and corrosion-resistant construction. These fans are ideal for use in environments such as chemical processing plants, oil refineries, paint manufacturing facilities, and grain elevators, where ventilation is crucial to preventing the risk of ignition.

Our fans come equipped with motors that meet Division 1, Class I, Group D, and Class II, Groups F & G requirements, offering durable and dependable performance in classified environments. Whether you need spot cooling or large-scale exhaust ventilation, Triangle Engineering’s fans provide the solution.

By choosing our hazardous location ventilation systems, you’re investing in both safety and efficiency, ensuring long-lasting performance in the most extreme industrial settings.

Key Features of Our Hazardous Location Fans

  • Spark-resistant aluminum blades to reduce the risk of ignition in hazardous environments.
  • Explosion-proof motors designed for safety in locations where flammable gases, vapors or dusts are present.
  • Corrosion-resistant construction, ensuring long-lasting performance in harsh industrial environments.
  • Belt drive and direct drive models tailored for different maintenance and performance preferences.

Triangle Engineering’s hazardous location fans are ideal for a wide range of industries where safety and ventilation are critical, including:

  • Chemical processing plants, where ventilation is crucial to control hazardous gases and vapors.
  • Oil refineries, requiring explosion-proof ventilation systems to handle flammable substances.
  • Paint manufacturing facilities, where proper air circulation helps prevent combustible dust buildup.
  • Grain elevators and flour mills, reducing the risk of ignition from combustible dust in agricultural operations.
  • Coal handling areas in power plants, providing critical ventilation to prevent dust-related hazards.
  • Pharmaceutical manufacturing, ensuring clean and safe working conditions in potentially volatile environments.

Customizable Solutions to Meet Unique Challenges

At Triangle Engineering, we understand that no two facilities are the same. Our hazardous location fans come in a range of sizes, from 24” to 84” blade diameters, and motor horsepower options ranging from ½  HP up to 25 HP. Standard motor voltage offerings include 115V 1-phase, 230V 1-phase, 230V 3-phase, and 460V 3-phase, with optional voltage configurations available upon request. This versatility ensures that our fans can be adapted to meet the specific demands of your facility.

Why Choose Triangle Engineering for Hazardous Location Ventilation?

Choosing Triangle Engineering means investing in equipment built for both safety and efficiency. Our commitment to quality means every fan is factory-assembled, tested, and made in the USA using a blend of domestic and foreign sourced components. We also offer fast access to replacement parts and customer support to minimize downtime and keep your operations running seamlessly.

Get in Touch for Tailored Solutions

If your operation has unique airflow requirements, specialized motor configurations, or custom sizes and voltages, Triangle Engineering is ready to help. Contact us today to discuss your specific needs and find a customized solution that ensures optimal safety and performance in your hazardous location.