Desa (F)SDVBNC, (F)SDVBPC Note

107304

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VENTING INSTALLATION

Continued

Figure 26 - Installing Horizontal Vent Cap with Exterior Wall

Firestop (Combustible Exterior)

WARNING: Do not recess vent termination in to

any wall. This will cause a fire hazard.

Figure 27 - Installing Vinyl Siding Standoff

Cut Vinyl Siding

Away to Fit

Standoff

Vinyl Siding Standoff

(Apply Mastic to All

Four Sides)

(190mm)

Vent Opening

Noncombustible Wall

(Framing

Detail)

10"

(254mm)

10"

(254mm)

Vent Opening

Combustible Wall

VentO

ening

Figure 28 - Interior Wall Firestop

Interior Wall

Firestop

Exterior Wall Firestop

(Apply Mastic to All

Four Sides)

Vent

Termination

Vent

Termination

Interior Wall

Firestop

Interior Wall

Firestop

Vent

Termination Horizontal

Vent Pipe

3. Attach vent pipe assembly to the burner system. Set stove in

front of it’s permanent location to insure minimum clearances.

Mark the wall for a 10" square hole (for noncombustible ma-

terial such as masonry block or concrete, a 7 1/2" diameter hole

is acceptable). See Figure 25. The center of the hole should

line up with the center-line of the horizontal vent pipe. Cut a

10"x10" (254mm x 254mm) square hole through combustible

exterior wall (7 1/2" [190mm] diameter hole if noncombustible).

Frame as necessary (see Figure 25).

4. For Combustible Exterior: Apply a bead of non-hardening mas-

tic around the outside edge of the exterior wall firestop. Posi-

tion the external wall firestop within the 10" square opening on

the exterior wall with firestop flanges inside the opening. At-

tach using screws provided as shown in Figure 26. Position

the vent termination in the center of exterior wall firestop with

arrow on termination pointing up.

For Noncombustible Exterior: Apply a bead of non-harden-

ing mastic around the outside edge of the vent termination.

The exterior wall firestop will not be necessary for this appli-

cation. Position the termination cap in the center of the 7 1/2"

hole on exterior wall with arrow on termination pointing up.

Attach the vent termination with four wood screws supplied

(see Figure 26).

Note

: Replace the wood screws with appropri-

ate fasteners for stucco, brick, concrete, or other types of siding.

5. Use of a vinyl siding standoff is required when vinyl siding,

cedar shake, or other painted wood surfaces could melt, peel,

or discolor from trapped or wind driven flue exhaust (exces-

sive heat) near vent termination. The vinyl siding standoff re-

places the outer firestop between the vent termination and the

exterior wall to protect these exterior wall treatments. Bolt the

vent cap to the standoff. Apply non-hardening mastic around

outside edge of the standoff. Position standoff within the 10"

square opening on the exterior wall. Use wood screws provided

to attach the standoff. See Figure 27.

6. Slide the interior wall firestop over the vent pipe before con-

necting the horizontal run to the vent cap (see Figure 28).

7. Carefully move the stove with vent assembly attached toward

the wall and insert the vent pipe into the horizontal termina-

tion. The pipe overlap should be a minimum of 1 1/4". Apply

silicone to the outer pipe connection. Fasten all vent connec-

tions with screws provided.

8. Slide the interior wall firestop against the interior wall surface

and attach with screws provided (see Figure 28).

Figure 25 - Vent Opening Requirements

VENTING INSTALLATION

Installation for Horizontal Termination (Cont.)