Installation Manual
INSTALLATION 
(CONT.) 
Cut around the outside of the traced line(s), avoiding wall studs. Install the duct from the 
outside of the home to the opening in the wall. Use HVAC foil tape (not grey cloth 
duct tape) to seal joints.
Proceed to step 14.
Method 2: 
Using the applicable venting accessories and the connection diagrams (previous page) as a 
guide. Install the duct(s) from the outside of the home to the wall so they will meet the 
exhaust elbows to be used. 
The end of the duct(s) should extend 1” past the ends of the elbows.
Proceed to step 14.
13.  Check mount holes to wood strip, drill if needed: 
Hang the hood on the mounting strip by aligning the channel at the top of the back of the hood 
over the wood mounting strip on the wall. 
While holding the hood in place, determine if the mounting holes in the channel at the top of 
the back of hood align with the existing holes in the mounting strip. If they don’t, mark the 
hole locations on the mounting strip.
Remove the hood and drill 3/32” pilot holes in the center of the marks in the wooden mounting 
strip to avoid splitting.
14.  Mounting the Hood: 
FOR BACK VENTING APPLICATIONS ONLY. IF YOU ARE NOT BACK VENTING, PROCEED 
DIRECTLY TO STEP 15.
•  If using a Hestan duct cover, it must be mounted to the hood using the provided fasteners before 
continuing. 
Method 1: 
a) Place the appropriate elbow(s) on the top of the hood. Elbow(s) should be placed with 
the non-crimped end(s) on the inside the collar(s) of the exhaust outlet(s). Use HVAC 
foil tape (not grey cloth duct tape) to seal joints. 
b) Lift the hood up to the wall and hang the hood on the mounting strip, taking care to 
properly align the duct connection(s) between the elbow(s) and the duct(s) in the wall. 
c) Secure the hood to the mounting strip by installing the screws (previously removed from 
the strip in Step 11) into the pilot holes drilled in Step 13. Caution must be taken to 
avoid scratching the hood or ceiling.
Method 2: 
a) Place the appropriate elbow(s) on the top of the hood. Elbow(s) should be placed with 
the non-crimped end(s) on the inside the collar(s) of the exhaust outlet(s). Use HVAC 
foil tape (not grey cloth duct tape) to seal joints. 
b) Insert the electrical wire from the service panel into the electrical wire clamp on each 
motor box. Tighten the wire clamp(s). 
c) While securing the slack in the wire, lift the hood up to the wall and hang the hood on 
the mounting strip, taking care to properly align the duct connection(s) between the 
elbow(s) on the hood and the duct(s) in the wall. 
d) Secure the hood to the mounting strip by installing the screws (previously removed from 
the strip in Step 11) into the pilot holes drilled in Step 13.
•  IF BACK VENTING, SKIP STEP 15. PROCEED DIRECTLY TO STEP 16.
©2018 Hestan Commercial Corporation
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