ST356
Fig. 21 Simpson Dura-Vent - install outer adapter pipe.
Side Wall Termination Assembly
1.Locate the vent opening on the wall. Refer to Page 7, Figure 5, to determine the opening centerline.
It may be necessary to first position the stove and measure to find the hole location. Depending on whether the wall is made of combustible materi- als, cut the opening to the size shown in Figure 22. Combustible wall openings must be framed as shown in Figure 22.
CFM System |
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9³⁄₈”
(240mm)
Combustible Wall
Jefferson Direct Vent /Natural Vent Gas Heater
12” |
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(305mm) | Sleeve | |
Max. Length | ||
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| #8 Sheet | |
| Metal Screws | |
Firestop | ZCS103 | |
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Fig. 23 Assemble the wall sleeve and firestop. |
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For DuraVent pipe only: Install vent pipe by align- ing the locking system together, sliding the pipes together and twisting clockwise.
•Install 90° elbow. Twist lock as before.
•Slide the wall plate over horizontal run before at- taching the horizontal run to the elbow. Fasten wall plate to wall.
4.For CFM Vent Pipe only: If necessary, measure to determine the vertical length (X) of pipe required from the adapter pipe to the wall cutout centerline, including a 2” overlap at the joint. (Fig. 24) use a hacksaw or tin snips to trim the pipe as needed.
DuraVent System
10”
(254mm)
10”
(254mm)
Framing Detail
7¹⁄₂”
Noncombustible
Wall
X
Fig. 22 Locate vent opening.
2.Measure the wall thickness and cut the wall sleeve sections to proper length (MAXIMUM 12”). Assemble the sleeve with the #8 sheet metal screws supplied. Attach the firestop plate to the sleeve end with the holes. (Fig. 23) NOTE: The wall sleeve is required in combustible walls only.
3.Install the Wall Firestop/Sleeve assembly into the wall cutout and fasten the firestop to the wall cutout framing members. (Fig. 23)
ST214
Fig. 24 Determine the vertical pipe length.
5.Install first the inner then the outer straight pipe section(s), trimmed end down, to the point of the el- bow. Drill 3 holes through each joint and fasten with sheet metal screws.
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