Venting Installation, Continued, Vent Opening Requirements

VENTING INSTALLATION

Installation for Horizontal Termination (Cont.)

VENTING INSTALLATION

Continued

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"(25.4cm) square hole (for noncombus- tible material such as masonry block or concrete, a 7 1/2" (19.1cm) diameter hole is acceptable). See Figure 24. The center of the hole should line up with the center-line of the horizontal rigid vent pipe. Cut a 10"x10" (25.4cm x 25.4cm) square hole through combustible exterior wall (7 1/2" [19.1cm] diameter hole if noncombustible). Frame as necessary (see Figure 24).

4.Noncombustible Exterior Wall: Apply a bead of non-harden- ing mastic around the outside edge of the vent cap. Position the vent cap in the center of the 7 1/2" (19.1cm) hole on the exterior wall with the arrow on the vent cap pointing up. Attach the vent cap with four wood screws provided (see Figure 25). Note: Re- place the wood screws with appropriate fasteners for stucco, brick, concrete, or other types of siding.

WARNING: Do not recess vent termination in to any wall. This will cause a fire hazard.

Combustible Exterior Wall: For vinyl siding, stucco, or wood exteriors, a siding standoff must be installed between the vent cap and exterior wall. The siding standoff prevents excessive heat from damaging siding materials. Siding materials must be cut to accommodate standoff. Bolt the vent cap to the stand- off. Apply non-hardening mastic around outside edge of the standoff. Position the standoff/cap assembly in the center of the 10" (25.4cm) square hole and attach to exterior wall with wood screws provided (see Figure 26). The siding standoff must sit flush against the exterior fascia material.

5.Combustible Exterior Wall Only: Slide the interior wall firestop over the vent pipe before connecting the horizontal run to the vent cap (see Figure 27).

Figure 24 - Vent Opening Requirements

6.Carefully move the fireplace with vent assembly attached toward the wall and insert the vent pipe into the horizontal termination. The pipe overlap should be a minimum of 1 1/4" (3.2cm). Fasten all vent pipe connections (except vent cap) with screws provided.

7.Combustible Exterior Wall Only: Slide the wall firestop against the interior wall surface and attach with screws pro- vided (see Figure 27).

Vent Cap

Wood Screw

Figure 25 - Installing Horizontal Vent Cap (Noncombustible Exterior)