EXT External Mount Duct Fans

Description

EXT external mount duct fans are the perfect solution when space restrictions prevent the use of in-line duct fans. These fans provide a simple through-the-wall solution, and can be sidewall mounted on the exterior of a building to allow for easy access to the fan. EXT fans utilize quiet and energy efficient external rotor motors. EXT fans are available in three standard duct sizes: 4″, 6″ or 8″, with airflow’s ranging from 118 cfm to 420 cfm.

Features & Benefits of EXT External Mount Duct Fans

• Heavy gauge, galvanized steel housing with baked epoxy finish
• 120V operation • May be mounted on the exterior of a building
• Enclosed motor housing for dust & lint
• Suitable for air temperatures up to 140 F / 60 C
• Energy efficient – speed controllable (optional solid state speed control)
• Rugged construction for long life
• Built-in backdraft damper
• Exceptionally quiet and efficient BC centrifugal motorized impeller
• External rotor motor design results in superior motor cooling and durability
• Permanently lubricated ball bearing motor for maintenance-free operation
• Automatic reset thermal overload protection
• Fan and motor are precision balanced for quiet and vibration-free operation
• Pre-wired capacitor
• Available to fit duct sizes in 4”, 6”, & 8”; airflow capacities to 445 cfm

Complete the job with our full line of fan accessories and controls.

Aiflow Performance (cfm)

Fan Dimensions

• Select the Charts / Diagrams tab below

Applications

• Bathroom exhaust
• Range hood exhaust
• Duct boosting
• Crawl space ventilation
• Ground floor installations
• Tight attic mountings
• High rise buildings
• Apartments/townhouses
• Basement kitchens, washrooms

View our full line of in-line duct fans to find the fan that best suits your application.