Venting requirements
•
Vent system must terminate to the outside (roof or side wall).
•
DO NOT terminate the vent system in an attic or other enclosed area.
•
DO NOT use 4" (10.2 cm) laundry-type wall caps.
•
Use metal/aluminum vent only. Rigid metal/ aluminum vent is recommended.
•
DO NOT use plastic vent.
•
Always keep the duct clean to ensure proper airflow.
•
Calculate the following figures before installation:
1. Distance from the floor to the ceiling.
2. Distance between the floor to the countertop/stove (recommend* 27" to 30").
3. Distance between the countertop/stove to the range hood.
4. Height of hood and duct cover.
For the most efficient & quiet operation:
•
A distance of 27" to 30" is recommended* between stove top and the bottom of range hood.
•
It is recommended that the range hood be vented vertically through the roof through 8" (20.3 cm) or
bigger round metal/aluminum vent work.
•
The size of the vent should be uniform.
•
Use no more than three 90° elbows.
•
Make sure there is a minimum of 24" (61 cm) of straight vent between the elbows if more than one
elbow is used.
•
DO NOT install two elbows together.
•
The length of vent system and number of elbows should be kept to a minimum to provide efficient
performance.
•
The vent system must have a damper. If roof or wall cap has a damper, DO NOT use damper (if supplied)
on top of the range hood.
•
Use silver tape or duct tape to seal all joints in the vent system.
•
Use caulking to seal exterior wall or roof opening around the cap.
* Due to different ceiling height configurations, recommended height may not be applicable.
www.combisteel.com
7