VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
9
VENTING INSTALLATION INSTRUCTIONS
Continued
Interior Wall 
Surface
7.Combustible Exterior Wall Only: Slide the wall firestop over the vent pipe before connecting horizontal run to vent cap (see Figure 12).
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" (see Figure 13).
9.Combustible Exterior Wall Only: Slide wall firestop against interior wall surface and attach with screws provided (see Figure 12). See Figure 13 for horizontal termination details.
10.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.
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Vent Cap | Vent Pipe |
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(Horizontal |
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Termination) |
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Screw
Figure 12 - Connecting Vent Cap with Horizontal Vent Pipe
Vent Cap
Wood Screw
Minimum Pipe | Siding Standoff | |
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Overlap 1 |
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Direct Vent |
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Pipe |
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Wall |
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Firestop |
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Figure 10 - Installing Horizontal Vent Cap (Noncombustible Exterior)
Cut Siding Away to Fit Standoff
Standoff
Wood Screw
Vent Cap
Screws
Apply Mastic to All Four Sides
Figure 11 - Installing Siding Standoff (Combustible Exterior)
Maintain 1" |
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Minimum Air |
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Space Around |
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Outer Pipe When |
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Penetrating a Wall |
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10 |
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3 | Apply Mastic to | ||||
3 | /4" Framed | ||||
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Opening |
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| Exterior Wall |
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Figure 13 - Typical Horizontal Termination Cap Mounting with | |||||
Additional Siding Standoff Installed |
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www.desatech.com |