Attic, Roof, & Whole House Fans
Maintain consistent rooftop ventilation with the Canarm ALX120-DDEC 12-inch Spun Aluminum Direct Drive Downblast Exhauster. Designed for commercial and light-industrial spaces, it combines a durable spun-aluminum housing with electronically commutated motor technology to move air efficiently while helping you manage operating costs. Whether you are retrofitting an existing facility or specifying ventilation for new construction, this downblast fan offers the flexibility of true variable-speed control in a compact, corrosion-resistant design that installs on a curb or wall sleeve. Key Features and Benefits of the Canarm ALX120 12-Inch Spun Aluminum EC Downblast Exhauster Energy-Saving EC Motor: Electronically commutated technology delivers up to 82 percent motor efficiency, trimming electrical usage by as much as 70 percent compared with traditional permanent split-capacitor motors. Adjustable Airflow: A built-in potentiometer and 0-10V terminals let you dial fan speed from 425 to 1,800 RPM. It can be controlled remotely up to 50’ using a remote mount potentiometer or 0-10V. Flexible Installation: This model can be installed as either a rooftop or wall-mounted exhaust fan, giving installers greater flexibility. Consistent Power: The non-overloading backward-inclined wheel maintains consistent horsepower draw across the static pressure range, protecting the motor and simplifying selection. Corrosion-Proof Housing: Spun-aluminum construction will not rust, chip, or peel, making it ideal for coastal installations and harsh weather environments. Compact Footprint: The 19 x 19-inch base fits a 15-inch roof opening, while the 35-pound weight eases handling. Dual-Voltage Versatility: Runs on single-phase 120- or 240-volt power at 50 or 60 Hz, simplifying integration across job sites. Optional Motor Versions The Canarm ALX120 is available in two different motor variations, giving you greater flexibility over the fan's output capabilities. It is available with either a 1/3 ho