Venting Installation
instructions
Continued
WARNING: Do not recess vent termination into any wall. This will cause a fire hazard.
6.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 standoff. Apply nonhardening mastic around outside edge of standoff. Position the standoff/cap assembly in the center of the 103/4" square hole and attach to exterior wall with wood screws provided (see Figure 12). The siding standoff must sit flush against the exterior fascia material.
7.Combustible Exterior Wall Only: Fit the outer and inner wall firestop into wall before connect- ing horizontal run to vent cap (see Figure 13).
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 11/4".
9.Place fireplace into position and shim with noncombustible material, if needed. Nail or screw side 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
Cut Siding Away to Fit Standoff
Standoff
Vent
Cap
Apply Mastic to All Four Sides
Screws
Figure 12 - Installing Siding Standoff
(Combustible Exterior Wall)
NOTICE: Do not seal termination cap to vent pipe. Cap must be removable for vent inspection and maintenance.
WARNING: Never run vent downward as this may cause excessive temperatures which could cause a fire. Operation of improperly installed and main- tained venting system could result in serious injury, property damage or loss of life.
Inner Wall
Firestop
Outer Wall
Firestop
Figure 13 - Installing Outer Wall Firestop
(Combustible Exterior Wall)
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