Commercial Products  >  Fans & Ventilators
Rooftop Fan

Multi-story bathrooms, kitchens and dryers can rack up unnecessary operating costs if there’s not a good rooftop ventilation solution in place. Why risk the added time and cost? The ENERVEX EFV Rooftop Fan makes venting easy – even if you’re dealing with multiple appliances on multiple floors, duct design challenges, or code violations.

This virtually maintenance-free rooftop fan is a unique exhaust solution in multi-story buildings. Install the EFV fan at the exhaust duct termination point to ensure a negative pressure in your entire duct system. It’s versatile, too, able to be mounted vertically or side-wall vented. You can also use the EFV for other exhaust applications with high-temperature exhaust air.


  • Cast aluminum housing & impeller with an easy-to-clean clam-shell design
  • Backward-curved impeller
  • Direct-drive, variable-speed motor, TEFC, Class H
  • Optional: Electrically commutated motor for optimal performance and efficiency
  • Temperatures up to 575°F/300°C
  • Extremely low noise level
  • Complete fan and control package available from a single manufacturer
  • Low operating costs


Capacities 0-4,000 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 705 Standard for Power Ventilators
CSA C22.2 No. 113-12 Fans and Ventilators, Edition 9

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. 

Modulating Pressure Control (multi-story)

A modulating pressure control that provides superior pressure control in single- or multi-story building applications such as clothes dryers, bathrooms and kitchens.