Vermont Castings DVR33 Homeowner's Installation And Operating Manual page 19

Vertical Through-the-Roof Installation
1. Locate your fireplace.
2. Plumb to center of the (4") flue collar from ceiling
above and mark position.
3. Cut opening equal to 9
240 mm).
4. Proceed to plumb for additional openings through
the roof. In all cases, the opening must provide a
minimum of 1 inch clearance to the vent pipe, i.e.,
the hole must be at least 9
240 mm).
5. Place fireplace into position.
6. Place firestop(s) #7DVFS or Attic Insulation Shield
#7DVAIS into position and secure (Fig. 32).
7. Install roof support (Fig. 33) and roof flashing,
making sure upper flange is below the shingles
(Fig. 34).
8. Install appropriate pipe sections until the venting is
above the flashing (Fig. 34).
9. Install storm collar and seal around the pipe.
10. Add additional vent lengths for proper height
(Fig. 33).
11. Apply high temperature sealant to 4" and 7" collars
of vertical vent termination and install.
If a room is above ceiling level, a firestop
spacer must be installed on each level
(top and bottom) of the ceiling joists.
If an attic is above ceiling level, a 7DVAIS
(Attic Insulation Shield) must be
installed. Always face the enlarged ends
of the vent section downward.
Attic Insulation
Shield
Upper Floor
11"
Ceiling
Installation
Joist
Nails (4)
Fig. 32 Attic insulation shield and firestop spacer.
10004920
3 3
/ " x 9 / " (240 mm x
8 8
3 3
/ " x 9 / 1 (240 mm x
8 8
11"
Firestop
Spacer
FP1029
Vermont Castings, Majestic Products: DVR33
Typical
Roof
Support
Application
Fig. 32 Venting supports.
Fig. 33 Minimum termination to roof clearance.
(3) #5
Sheet Metal
Screws
per Joint
Sealant
Fig. 34 Roof flashing.
Typical Ceiling
Support
Application
Min.
2' (610 mm)
Storm
Collar
FP1184
FP1189
(3) #5
Sheet Metal
Screws
per Joint
Sealant
Storm
Collar
TWL101a
19