Inline Duct Fan

Insulation & Ventilation

An inline duct fan (or inline duct blower) is mounted directly inside ductwork rather than on a wall or ceiling. It draws air through the duct network to boost airflow, exhaust fumes, manage temperature and humidity, or extract odors.

Common Applications

Indoor Gardening & Hydroponics: Exhausts heat, manages humidity, and pulls air through carbon filters to scrub odors in grow tents or rooms.
HVAC Air Boosting: Increases airflow to specific rooms in a home that standard furnace or central AC fans struggle to reach.
Bathroom & Kitchen Exhaust: Serves as a quiet, remote exhaust system by mounting the fan motor in an attic or crawlspace to keep noise away from living areas.
Electronics & Equipment Cooling: Keeps AV closets, server racks, and equipment rooms cool.

Additional Information
Enquiry

Key Types of Inline Fans

Type	Best For	Characteristics
Axial	Short duct runs, low resistance	Moves higher volume at low pressure; best for short, straight ducts.
Centrifugal	Long duct runs, high static pressure	Delivers strong static pressure; ideal for pushing air through bends and heavy carbon filters.
Mixed-Flow	General hydroponics & home HVAC	Combines the high airflow of axial fans with the pressure of centrifugal fans; highly efficient and quiet.

Key Features to Consider

Motor Type (EC vs. AC): Electronically Commutated (EC) motors are significantly more energy-efficient, generate less heat, and offer precise speed control compared to older AC motors.
Size & CFM Rating: Standard diameters range from 4-inch (approx. 100–200 CFM) up to 12-inch (1000+ CFM). Choose a size matching your ductwork and required Cubic Feet per Minute (CFM) air movement.
Smart Controllers: Modern units often include environmental controllers with sensors to adjust speed automatically based on target temperature, humidity, or Vapor Pressure Deficit (VPD).