Commercial Products  >  Fans & Ventilators
Chimney Fan

If you have multiple heating appliances, a challenging chimney layout, possible code violations, or just need additional safety measures, you should consider installing an RSV Chimney Fan.

It can be installed at the chimney termination point where it ensures a mechanical draft in the entire chimney or stack system. This chimney fan works well with condensing and non-condensing, gas-fired boilers and water heaters. It can even be used for other exhaust applications with high-temperature exhaust air.


  • Proven performance with a 25+ year track record
  • Works with virtually any type of Cat. I, II, III & IV heating appliances (condensing & noncondensing) 
  • Allows horizontal or vertical mounting
  • Easy to install, access & maintain
  • Complies with all Fuel Gas, Mechanical & Building Codes
  • Interlocks with the heating appliance
  • Extremely low noise level
  • Complete package available available from a single manufacturer
  • Low operating costs


Capacities 400-4,000 CFM (0-6,800 m3/h)
Material Cast Aluminum Housing and Impeller
Drive Backward-curved Impeller
Motor Variable Speed, TEFC, Class H
Max. Temp 575°F (300°C)
Warranty 2-Year Factory Warranty
10-Year Warranty Against Corrosion Perforation
Listings UL 378 Standard for Draft Equipment
UL 705 Standard for Power Ventilators
CSA3-B255-M81 Standard for Mechanical Flue Gas Exhauster
CSA C22.2 No. 113-12 Fans and Ventilators, Edition 9

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RSV Chimney Fan – mechanical draft fan used to vent boilers and water heaters
MSC EDrive Motor Controller—controls the speed of fans and ventilators
MSC Motor Controller

A full featured, industrial-type motor controller programmed specifically to control and adjust the speed of ENERVEX fans and ventilators using Electronically Commutated (EC) Motors or Induction Motors. 

EBC 35 Modulating Pressure Control and CO Monitor—varies the speed of a fan(s) or the position of an actuator
Modulating Pressure Control and CO Monitor

A sophisticated multi-use draft and pressure controller and CO-monitor with integrated webserver and remote access used with fans and dampers to monitor and maintain a constant pressure in commercial boiler and building applications.