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Additional Resources

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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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HBD Series

SINCE 1948.

HBD Series

Sales Sheet
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48” HBD4815

The “HBD” portable tilt fan employs the same great design of the HeatBuster with a cradle mount, allowing for precise, directional, cooling of people, products or equipment.


  • Mounted on a heavy gauge cradle
  • Tilts up or down 90° with positive tilt lock knob
  • Automatic belt tensioner
  • Single and two speed models

See full specifications for sizing and performance data

View Full Specs

Hazardous Location Models

Hazardous location models are available for all sizes of single-speed HBD portable tilt fans.

  • Motor: single-speed Div. 1, Class 1, Group D and Class II, Groups F & G
  • Voltage: single phase (115/230v) or three-phase (230/460v) motor
  • Non-sparking aluminum blade
  • Stationary motor mount
  • No wiring or switch
Hazardous Location Models Resources:
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