Flexible ducting in 25 foot lengths in every common diameter. Standard aluminum duct, reinforced heavy duty duct, insulated ducting that quiets and prevents condensation, light proof black duct, and rigid elbows.
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Types of ducting
Aluminum flex duct is the everyday choice for exhaust and intake lines. Heavy duty duct uses a multi layer construction with polyester reinforcement to resist tears in commercial use. Insulated ducting wraps the duct in insulation, which deadens fan noise and stops condensation when cool air runs through a warm space. Light proof black duct blocks light completely, so a vent does not interrupt the dark period.
Installing for airflow
Every bend and every extra foot costs airflow. Keep runs short and straight, pull flex duct tight so the ribs do not create drag, and use a rigid elbow for tight turns instead of kinking the duct.
Ducting FAQ
What size ducting do I need?
Match the flange size of the fan and filter. Reducing the diameter mid line restricts airflow and adds noise.
Does insulated ducting reduce noise?
Yes. The insulation absorbs a good share of fan and air noise, especially on the run after the fan.
How do I keep light out of ducting?
Use light proof black duct, and add a bend in the run so there is no straight line of sight.
