10
W415-0661 / C / 02.20.08
FIREPLACE VENT EXIT
REAR EXIT
TOP EXIT
Horizontal
Termination
Vertical
Termination
Vertical
rise is
equal to
or greater
than the
horizontal
run
Vertical
rise is
less than
horizontal
run
Horizon-
tal run +
vertical
rise to
maximum
of 40 feet
Horizontal
run + verti-
cal rise to
maximum
of 24.75
feet
3.5 times
the verti-
cal rise
equal to
or greater
than the
horizontal
run
Vertical
rise is
equal to
or greater
than the
horizontal
run
Horizon-
tal run +
vertical
rise to
maximum
of 40 feet
Vertical
rise is
less than
horizontal
run
Horizon-
tal run +
vertical
rise to
maximum
of 40 feet
3 times
The
vertical rise
equal to or
greater than
the horizontal
run
VENTING APPLICATION FLOW CHART
BGD36CF(G)
BGD42CF
Horizontal
Termination
Vertical
Termination
Vertical
rise is
equal to
or greater
than the
horizontal
run
Vertical
rise is
less than
horizontal
run
Horizon-
tal run +
vertical
rise to
maximum
of 40 feet
Horizontal
run + verti-
cal rise to
maximum
of 24.75
feet
4.2 times
the verti-
cal rise
equal to
or greater
than the
horizontal
run
Vertical
rise is
equal to
or greater
than the
horizontal
run
Horizon-
tal run +
vertical
rise to
maximum
of 40 feet
Vertical
rise is
less than
horizontal
run
Horizon-
tal run +
vertical
rise to
maximum
of 40 feet
3 times The
vertical rise
equal to or
greater than
the horizontal
run
HORIZONTAL TERMINATION
VERTICAL TERMINATION
Vertical rise is
equal to or greater
than the horizontal
run
Vertical rise is less
than horizontal run
Horizontal run
+ vertical rise to
maximum of 40
feet
Horizontal run +
vertical rise to maxi-
mum of 24.75 feet
4.2 times the verti-
cal rise equal to or
greater than the
horizontal run
Vertical rise is equal
to or greater than
the horizontal run
Horizontal run
+ vertical rise to
maximum of 40
feet
Vertical rise is
less than hori-
zontal run
Horizontal run
+ vertical rise to
maximum of 40
feet
3 times The
vertical rise equal
to or greater than
the horizontal run