Vermont Casting DVT38S2 - Manual (Page 19)

19
Chateau™ Decorative Gas Appliance
20009543
FP1464
Fig. 33 Typical offset application.
1 + 2 + 3 + 4 = 270°
Minimum 2’ (610mm)
Before Any Elbow
1 2
3
4
Max. 8' (2.4m)
FP1245a
through the roof
90 & 45 degree
• A 2’ (610 mm) vertical section must be installed
before any offset. A maximum of 20’ (6.1 m) horizon-
tal and three (3) 90° elbows may be installed with a
minimum of 12’ (3.66 m) vertical section above the
flue collar of the unit. (Fig. 32)
• Up to two (2) 30° or 45° elbows may be used within
the horizontal run. For each 30° or 45° elbow used
on the horizontal level the maximum horizontal
length must be reduced by 18” (457 mm).
Example: Maximum horizontal length
0 x 30° or 45° elbows = 10’ (3 m)
1 x 30° or 45° elbows = 8’6” (2.6 m)
2 x 30° or 45° elbows = 7’ (2.1 m)
• A minimum of a 12’ (3.7 m) vertical rise.
• Two sets of 30° or 45° elbows offsets within these
vertical installations. From 0 to a maximum of 8’ (2.4 m)
of vent pipe can be used between elbows. (Fig. 33)
• SKCS8 must be used to support offsets. (Fig. 36)
This application will require that you first determine
the roof pitch and use the appropriate starter kit.
(Refer to Venting Components List)
• The minimum height of the vent above the highest
point of penetration through the roof is 2’ (610 mm).
(Fig. 37)
FP593
SR/C
11/20/97
Attic Installation
Ceiling Installation
Nails (4)
Firestop Spacer
Joist
Joist
Firestop Spacer
Nails (4)
FP593
Fig. 34 Installing firestop spacer.
Vertical Through-the-Roof Installation
1. Locate your fireplace.
2. Plumb to center of the (8”) flue collar from ceiling
above and mark position.
3. Cut opening equal to 14¹⁄₂” x 14¹⁄₂” (368 x 368 mm).
4. Proceed to plumb for additional openings through
the roof. In all cases, the opening must provide a
minimum of 1¹⁄₂” (38 mm) clearance to the vent pipe,
i.e., the hole must be at least 14¹⁄₂” x 14¹⁄₂” (368 x
368 mm).
5. Place fireplace into position.
6. Place firestop(s) SKFS2A or Attic Insulation Shield
AIS-SK into position and secure. (Figs. 34, 35)
7. Install roof support (Fig. 34) and roof flashing making
sure upper flange of flashing is below the shingles.
8. Install appropriate pipe sections until the venting is
above the flashing.
NOTE: Tape the inner and outer flue collars of the
fireplace using UL approved metal adhesive tape to
ensure the joints are sealed.
9. Seal around the pipe.
10. Add additional vent lengths for proper height. (Fig.
37)