Full Product Manual

1018454-EPage 9
NOTE: For proper combustion, make sure
units are level, front to back and side to side.
STEP5.
If the vent continues through additional stories within the
2x4-stud space, then re-stop-spacers must be installed
at the second and subsequent ceiling levels. See Figure
7-D(below).
ROUGH-IN INSTRUCTIONS
STEP2.
Cut out an opening between the studs of 14-3/8” x
66-1/2” above the oor plate. Embed the rear ange of
the channel on top of header into either the drywall or the
plastered wall. This provides part of the required re stop.
Square up and nail the header in place with the top front
of header located 65-3/4” above oor plate. Seearrowon
rightsideofheader&Fig.7-A,7-Band7-C.
STEP3.
Rough in ½” gas supply on center line of left stud either 4”
above top of oor plate or 4” to right of left stud through oor
plate. (SeeFig.7-A)
STEP4.
Remove double ceiling plate between studs. Install one
ceiling plate spacer across the cut out in ceiling plate. Install
vent pipe into position, be sure to lock bottom of vent pipe
into the base plate. Nail the second ceiling plate spacer in
place. SeeFigure6(onpage8).
FIG. 7-C
NOTE:
Front panel
must be in front
of plaster ground
channel. Do not
hang it over front
of plaster ground.
PLASTER WALL
Plaster
B-W Type Vent
Screw
Front
Panel
Plaster
Ground
FIG. 7-B
NOTE:
Front panel
must be in front
of plaster ground
channel. Do not
hang it over front
of plaster ground.
Dry-Wall
B-W Type Vent
Screw
Front
Panel
Plaster
Ground
DRY WALL
FIG. 7-D
Firestop spacers
supplied by
manufacturer of
B-W gas vent.
Plate cut
away to provide
passage of B-W
gas vent.
Nail restop
spacer securely.
Installation of
B-W gas vent for each
subsequent ceiling or
oor level of multi-story
buildings.
FIG. 7-A
Rough-In
Dimensions
4”
4”
14
1
/
4
”
min.
14
1
/
2
”
max.
*65
3
/
4
”
*This
measurement
must be taken
from top of
oor plate