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installation
Vertical Flue Extension Kit (Part #946-756)
VERTICAL FLUE EXTENSION KIT (PART # 946-756)
20 foot (6.1 m) Flex pipe Extension
(Used in conjunction with the 946-755 Vertical Flex kit and 948-367/P flex
to flex adaptor).
1. Stretch out both inner 4" (102 mm) and outer 6 7/8" (175 mm) pipe up to
a maximum of 20 feet.
CEILING FIRESTOP/FIRESTOP SPACER
( PART # 946-757)
Note :The inner and outer pipes may be cut if only a short length is required.
2. Install spring spacers around 4" (102 mm) inner pipe as shown.
Used in conjunction with the 946-755 Vertical Flex Kit and 946-756 Vertical
Slide outer flex pipe over and all the way down the 4" pipe.
Flex Extension Kit/Horizontal Power Vent Kit.
3. Apply a bead of Mill Pac around the perimeter of the 4" (102 mm)
A ceiling firestop/firestop spacer must be installed when passing through
inner collar of the flex adapter and slip the 4" (102 mm) inner flex pipe
each floor or ceiling level. To install the ceiling firestop/firestop spacer in
from the Vertical termination kit over the flex adapter ensuring that the
a flat ceiling or floor joist, cut a 10- ¼ inch square hole, frame it as show
in Diagram 1, and install the ceiling firestop. Slide the top attic insulation
inner flex pipe overlaps the collar by at least 1-3/8" (35 mm). Fasten with
spacer onto the top of the attic insulation shield/firestop (see Diagram 1a).
3 screws.
Secure with 4 screws/nails. If more than one firestop is required, these can
be purchased separately.
4. Apply a bead of Mill Pac around the perimeter of the 6-7/8" (175 mm)
outer collar of the flue adapter and slip it over the 6-7/8" (175 mm) outer
flex pipe from the vertical termination kit ensuring that the outer flex pipe
• The ceiling firestop/firestop spacer may be cut down to size if the
overlaps the collar by at least 1-3/8" (35 mm). Fasten with the 3 screws.
shield is too high for the application.
5. Repeat steps to secure the other end of the flex adapter using the flex kit.
6. See Vertical Vent installation instructions for installation of the complete
vent system.
Note: If an offset is necessary in the attic or floor joists it is important to
sup-port the vent pipe every 3 feet (0.91 m) to avoid excessive stress and
sagging of the vent pipe. Wall straps are provided (3 in total) for this
purpose.
All round/plumbers strapping may also be used if further supports are
required.
919-698
Ceiling Firestop/Firestop Spacer (Part #946-757)
CEILING FIRESTOP/FIRESTOP SPACER
( PART # 946-757)
Used in conjunction with the 946-755 Vertical Flex Kit and the 946-756 Verti-
cal Flex Extension Kit/Horizontal Power Vent Kit.
A ceiling firestop/firestop spacer must be installed when passing through
each floor or ceiling level. To install the ceiling firestop/firestop spacer in
a flat ceiling or floor joist, cut a 10- ¼ inch square hole, frame it as show
in Diagram 1, and install the ceiling firestop. Slide the top attic insulation
spacer onto the top of the attic insulation shield/firestop (see Diagram 1a).
Secure with 4 screws/nails. If more than one firestop is required, these can
be purchased separately.
• The ceiling firestop/firestop spacer may be cut down to size if the
shield is too high for the application.
919-696
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42
P33CE-11 Direct Vent Gas Fireplace
4" (102 mm) inner
pipe 20ft. (6.1 m)
-1/4
60
Ceiling firestop
Diagram 1
6-7/8" (175 mm)
outer flex pipe
20 ft (6.1 m)
Diagram 1a
1
-1/4
60
Ceiling firestop
Diagram 1
Diagram 1a
1
10 spring spacers
Termination Cap
flex adaptor
Storm Collar
Flashing
Firestop spacer to prevent
3 wall straps
debris from falling into the ceiling
firestop
Roof support
Ceiling firestop
Enclosure
Ceiling firestop
06.12.18
Termination Cap
Storm Collar
Flashing
Firestop spacer to prevent
debris from falling into the ceiling
Roof support
firestop
Ceiling firestop
Enclosure
Ceiling firestop
08.10.16
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