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15
Irving Oil
10004000
installations. From 0 to a maximum of 8’ of vent
pipe can be used between elbows (Fig. 25).
• 7DVCS must be used to support offsets (Fig.
26). This application will require that you first
determine the roof pitch and use the appropriate
starter kit. (See Venting Components List)
The minimum height of the vent above the highest
point of penetration through the roof is 2 feet (Fig. 28).
Fig. 27
45°
45°
2.44m
MAX.
8 FEET
2.44m
MAX.
8 FEET
40'(12m)
TYPICAL OFFSET INSTALLATION
TYPICAL 7DVCS
APPLICATION
TYPICAL ROOF
SUPPORT
APPLICATION
Fig. 28
1. Locate your fireplace.
2. Plumb to center of the (4”) flue collar from ceiling
above and mark position.
3. Cut opening equal to 9-3/8” x 9-3/8” (240 mm x
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 9-3/8” x 9-3/8” (240 mm x
240 mm).
5. Place fireplace into position.
6. Place firestop(s) #7DVFS or Attic Insulation Shield
#7DVAIS into position and secure (Fig. 29).
7. Install roof support (Fig. 27) and roof flashing,
making sure upper flange of flashing is below the
shingles (Fig. 30).
8. Install appropriate pipe sections until above the
flashing (Fig. 30).
9. Install storm collar and seal around the pipe.
10. Add additional vent lengths for proper height (Fig. 28).
11. Apply high temperature sealant to 4” and 7” collars
of vertical vent termination and install.
TO INSTALL VERTICAL VENTING
Fig. 29 If there is a room above ceiling
level, firestop spacer must be installed
on both the bottom and the top side of
the ceiling joists. If an attic is above
ceiling level a 7DVAIS (Attic Insulation
Shield) must be installed.
The enlarged ends of the vent section
always face downward (Fig. 30).
Fig. 29
JOIST
11"
11"
Attic
Insulation
Shield
Ceiling
Installation
JOIST
NAILS (4)
FIRESTOP
SPACER
11"
11"
UPPER FLOOR
SEALANT
SHEETMETAL
SCREWS (#5) —
3 PER JOINT
STORM
COLLAR
SEALANT
SHEETMETAL
SCREWS (#5) —
3 PER JOINT
STORM
COLLAR
Fig. 30
TYPICAL STRAIGHT-UP INSTALLATION
40 FEET
(12.2m)
ATTIC INSULATION
SHIELD
JOISTS
CEILING JIOSTS
ROOF
VENT TERMINATION
ATTIC INSULATION
ROOF SUPPORT
STORM COLLAR
ROOF FLASHING
2' Min.