Desa (V) CD36R(N, (V) CD36T(N, P) installation manual Installing Siding Standoff

10	VENTING INSTALLATION INSTRUCTIONS
	Installation Planning (Cont.)

VENTING INSTALLATION

INSTRUCTIONS

Continued

6.Noncombustible Exterior Wall: Position the horizontal vent cap in the center of the 8 ½” round hole and attach to the exte- rior wall with four wood screws provided. Before attaching the vent cap to exterior wall, run a bead of non-hardening mastic (pliable sealant) around the outside edges to make a seal be- tween it and the outside wall. Note: The four wood screws provided should be replaced with appropriate fasteners for stucco,brick,concrete,orothertypesofsidings.(SeeFigure 13).

Combustible Exterior Wall: For vinyl siding, stucco or wood exteriors, a siding standoff may be installed between the vent cap and exterior wall. The siding standoff prevents excessive heat from damaging the siding materials. Siding material must be cut to accommodate standoff. Bolt the vent cap to the stand- off. Apply non-hardening mastic around outside edge of stand- off. Position the standoff/cap assembly in the center of the 10 ¾ square hole and attach to exterior wall with wood screws provided (see Figure 14). The siding standoff must sit flush against the exterior fascia material.

7.Combustible Exterior Wall Only: Fit the outer and inner wall firestop into the wall before connecting horizontal run to vent cap (see Figure 15).

8.Carefully move fireplace, with vent assembly attached, toward wall and insert vent pipe into horizontal termination. The pipe overlap should be a minimum of 1 ¼”.

9.CombustibleExteriorWallOnly:Slidewallfirestopagainst interiorwallsurfaceandattachwithscrewsprovided(seeFigure 16). See Figure 17 for horizontal termination details.

10.Place fireplace into position and shim with noncombustible ma- terial, if needed. Nail or screw flanges to framing to secure unit in place. IMPORTANT: Make sure fireplace is level before securing. If fireplace is not level, it will not work properly.

INNER WALL

FIRESTOP

VINYL

SIDING

STANDOFF

VENT

CAP

HOT

APPLY

MASTIC

TO ALL SIDES

SCREWS

Figure 14 - Installing Siding Standoff

INNER WALL

FIRESTOP

OUTER WALL

FIRESTOP

VENT

CAP

HOT

Figure 15 - Installing Outer Wall Firestop

VENT

CAP

SCREWS

HOT

INNER WALL

FIRESTOP

PIPE SECTION

Figure 13 - Installing Horizontal Vent Cap (Noncombustible)

VENT CAP

Figure 16 - Installing Inner Wall Firestop

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