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How to Install and Customize a Vent Hood

Use these step-by-step instructions to install a vent hood over a kitchen range.

More in Kitchen

Step 1: Choose a Spot for the Range

Determine the location of the range so the vent can be centered above it. Draw lines on the wall up to the soffitt using a level as a straight edge. Transfer the marks to the underside of the soffitt with a speed square.

determine location of range to center vent

Step 2: Remove the Drywall

Score the lines with a utility knife then break out the center with a hammer (Image 1). Break off the drywall to the lines (Image 2). Use a reciprocating saw to cut the metal corner bead.

Step 3: Cut a Hole for the Vent Pipe

Find and mark center in the joist cavity, then drill through to the outside to mark the location of the wall cap on the exterior (Image 1). Leave the drill in the hole and go outside.Center the vent pipe around the drill bit and trace the diameter (Image 2). Drill a pilot hole with a spade bit, then cut out the opening with a reciprocating saw (Image 3).

Step 4: Secure the Vent Cap

Wipe down the siding with a cloth so you have a clean, dry surface to adhere the vent to (Image 1).Put a bead of exterior silicone caulk on the vent cap and place it in the hole. Secure the cap with screws in each corner (Image 2).

Step 5: Secure the Frame for the Vent

Secure the frame for the vent to the ceiling studs with a framing nailer, then reinforce the frame with 3" wood screws.

secure frame for vent

Step 6: Secure the Vent and Add Insulation

Lift the vent into place and secure it with the provided bolts. Check for level and add shims as needed.Add spray foam to insulate and seal the gaps between the wall cap and the shell of the house.

secure vent and add insulation

Step 7: Add the Round Duct and the Wiring

Add the 6" round duct and secure it with tape. Piece together the elbow and damper and attach them to the duct (Image 1). Add elbows and ducting until you get to the wall cap (Image 2). Fish the wires down to the electrical box, and then make the proper connections.

Step 8: Customize the Vent

Cut the trim pieces to size with a compound miter saw. If the boards are too thick, use a surface planer to get them to the needed thickness (Image 1).Rip the trim to the correct width on a table saw, then secure the pieces with an 18 gauge finish nailer (Image 2).

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