3
• Venting system MUST terminate outside the home.
•
DO NOT
terminate the ductwork in an attic or other enclosed space.
•
DO NOT
use 4" laundry-type wall caps.
• Flexible-type ductwork is not recommended.
•
DO NOT
obstruct the flow of combustion and ventilation air.
• Failure to follow venting requirements may result in a fire.
WARNING
!
VENTING REQUIREMENTS
Determine which venting method is best for your application. Ductwork can extend either through the
wall or the roof.
The length of the ductwork and the number of elbows should be kept to a minimum to provide efficient
performance. The size of the ductwork should be uniform. Do not install two elbows together. Use
duct tape to seal all joints in the ductwork system. Use caulking to seal exterior wall or floor opening
around the cap.
Flexible ductwork is not recommended. Flexible ductwork creates back pressure and air turbulence
that greatly reduces performance.
Make sure there is proper clearance within the wall or floor for exhaust duct before making cutouts.
Do not cut a joist or stud unless absolutely necessary. If a joist or stud must be cut, then a supporting
frame must be constructed.
WARNING - To Reduce The Risk Of Fire, Use Only Metal Ductwork.
" 43(.-3NQDCTBDQHRJNEkQD@MCSNOQNODQKXDWG@TRS@HQADRTQDSNCTBS@HQNTSRHCDm#N
not vent exhaust air into spaces within walls or ceilings or into attics, crawl spaces, or garages.
3.
When cutting or drilling into wall or ceiling, do not damage electrical wiring and
other hidden utilities.
4.
Ducted fans must always be vented to the outdoors.
State of California Proposition 65 warning (US only)
WARNING
This product contains chemicals known to the State of California to cause cancer and birth
defects or other reproductive harm.
For more information go to www.P65Warnings.ca.
gov
