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Max*: 110”
Standard
Upper
Chimney
Extension available*
Range hood
Mounting
Bracket
Standard
Lower
Chimney
Extension available*
36” base
Maximum* ceiling clearance
110” at 31” hood mounting
height above countertop/stove
(may vary with different
model). Chimney extensions
available for higher ceiling.
* Higher ceiling requires chim
-
ney extension. Available at your
local resellers.
Min:
28”
Max: 31”
Venting Requirements
Height & Clearance
• Vent system must terminate to the outside
(roof or side wall).
• DO NOT terminate the vent system in an at
-
tic 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 instal
-
lation:
1.
Distance from the floor to the ceiling.
2.
Distance between the floor to the coun
-
tertop/stove (recommend* 28” to 31”).
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 28” to 31” 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 6”
(15.2 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 pro
-
vide 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, rec
-
ommended height may not be applicable.
Countertop/Stove
IMPORTANT:
• A minimum of 6” round (standard for this range hood) or 3-1/4 x 10” rectangular duct (purchased separately)
must be used to maintain maximum airflow efficiency.
• Flexible 6” round duct provided for convenience, always use rigid type metal/aluminum ducts if available to
maximize airflow when connecting to provided duct.
• Please use
Duct Run Calculation
below to compute the total available duct run when using elbows, transitions
and caps.
• ALWAYS, when possible, reduce the number or transitions and turns. If long duct run is required, increase
duct size from 6” to 7” or 8”. If a reducer is used, install a long reducer instead of a pancake reducer. Reduc
-
ing duct size will restrict airflow and decrease airflow, thus reduce duct size as far away from opening as pos
-
sible.
• If turns or transitions are required: Install as far away from opening and as far apart, between 2, as possible.
• Minimum mount height between stove top to hood bottom should be no less than 28-inch*.
• Maximum mount height between stove top to hood bottom should be no higher than 31-inch*.
• It is important to install the hood at the proper mounting height. Hoods mounted too low could result in heat
damage and fire hazard; while hoods mounted too high will be hard to reach and will loose its performance
and efficiency.
• If available, also refer to stove top manufacturer’s height clearance requirements and recommended hood
mounting height above range.
* Due to different ceiling height configurations, recommended height may not be applicable.
Minimum Duct Size:
• Round - 6” minimum
• Rectangular - 3-1/4 x 10” minimum (requires a 6” to 3-1/4x10” adaptor, not supplied)
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Duct Run Calculation:
Recommended maximum run
6” or 3-1/4 x 10” duct
50 ft
Vent piece deduction
Each 90º elbow used
9 ft
Each 45º elbow used
5 ft
Each 6” to 3/14 x 10” transition used
7 ft
Side wall cap with damper
0 ft
Roof cap
0 ft
Duct Run Calcuation example:
One roof cap, two 90º elbow, and one 45º elbow used:
0ft + 9ft + 9ft + 5ft =
23ft
used.
Deduct 23ft from 50ft,
27ft
maximum available for
straight duct run.
To calculate the length of the system you need, deduct the equivalent feet for each vent piece used in the system
from the recommended maximum duct run.
Calculating Vent System Length
