Attic, Roof, & Whole House Fans

The Canarm ALX165DB30M 16.5-inch Spun Aluminum Belt Drive Downblast Exhauster delivers dependable rooftop ventilation for factories, warehouses, and commercial buildings. Built on a belt-drive platform with a three-phase motor, it provides the steady airflow you need to remove heat, fumes, and stale air from commercial environments. Its spun aluminum housing is corrosion-resistant for harsh outdoor conditions, making this exhauster a practical choice for new construction or retrofit projects that demand long-term performance. Key Features and Benefits of the Canarm ALX165DB30M 16.5-Inch Downblast Exhauster Durable Housing: The spun aluminum resists rust, chips, and peeling. Belt-Drive System: Runs smoothly and quietly with adjustable motor pulley for field adjustment. Non-Overloading Wheel: Features a non-overloading backward-inclined wheel that protects the motor from excessive energy draw at higher static pressures. Three-Phase Motor: The dual voltage 230/460V motor arrives wired for 460V. For 3 phase motors, a variable frequency drive (VFD) is required to adjust motor speed. Dual Mount Options: This downblast exhauster can be roof or wall mounted in a 20.75 in. roof opening. Quick-Release Latches: Provide tool-less access to the motor, belts, and bearings, for easy maintenance. Bird Screen: Standard bird screen to block debris. Optional Motor Versions The Canarm ALX165DB30M is available in two different motor variations, giving you greater flexibility over the fan's output capabilities. It is available as a 1-horsepower or 1.5-horsepower motor model. ALX165DB30100M 1 HP: The 1 HP version of the Canarm ALX165DB30M has a 2,697 CFM max airflow capacity (at 0.0 inches w.g. static pressure) and a max fan speed of 1,489 RPM. ALX165DB30150M 1.5 HP: The 1.5 HP version of the Canarm ALX165DB30M has a max airflow capacity of 3,143 CFM (at 0.0 inches w.g. static pressure). It has a max fan speed of 1,646 RPM. Sylvane’s Expert Take The ALX165DB30M is a dependable choice when