Commercial Products  >  Fans & Ventilators
Rooftop Fan

The EFV is a high performing, variable volume centrifugal exhaust fan designed for outdoor installation. Can be used for special exhaust or exhaust of lint-laden air. Suitable for bathroom, kitchen or clothes dryer exhaust in a multi-story apartment building.

The EFV is an AMCA FEI Certified centrifugal fan.

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.


  • Electro-commutated motor for optimal performance and efficiency
  • Meets US Department of Energy 2016 Motor Efficiency Requirements
  • Meets ANSI/ASHRAE/IES 90.1-2016 Energy Standard for Buildings Except Low-Rise Residential Buildings
  • Cast aluminum housing & impeller with an easy-to-clean clam-shell design
  • Backward-curved high-efficiency 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
Certifications ANSI/AMCA standard 211 and AMCA Standard 301 for Sound and Air Performance and FEI Fan Energy Index.

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EFV Rooftop Fan—multi-use centrifugal exhaust fan used for dryer/building exhaust
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A modulating pressure control that provides superior pressure control in single- or multi-story building applications such as clothes dryers, bathrooms and kitchens.