Termination Clearances; Rear Venting Applications - Vermont Castings DBR33 Installation Instructions & Homeowner's Manual

Termination Clearances

Termination clearances for buildings with combustible and noncombustible exteriors.
Inside Corner
A =
Combustible
A
6"(152mm)
Noncombustible
2"(50mm)
V
Balcony -
with no side wall
G
V
G =
Combustible&
Non-Combustible
12"(305mm)
*IMPORTANT* DIRECT THROUGH SIDEWALL
Note: It is not necessary to seal the vent pipe joints for any straight out the wall rear vent applications.
Note: Vent Starter Kit Model 7DVRVT must be
Maximum Vent Length .......................... 20" (508mm)- Fig. 14
Minimum
between vent pipes and
combustible materials is
one (1") inch (25 mm) on
sides and bottom and two
(2") inch (50 mm) on top.
When vent termination
exits through foundation
less than 20" (508mm)
below siding outcrop, the
vent pipe must flush up
with the siding. A 7DVSS
must also be used.
Outside Corner
V
Balcony -
with perpendicular side wall
H
Combustible &
Non-Combustible
H = 24"(610mm)
J = 20"(508mm)

REAR VENTING APPLICATIONS

clearance
20" (508mm)
B =
Combustible
6"(152mm)
Noncombustible
2"(50mm)
B
V
J
used in straight out the wall rear vent applications.
45
TOP VIEW
CROSS CORNER VENT
TO THE LEFT.
- 10 -
Recessed Location
D
C
E
V
C = Maximum depth of 48"
(1219mm) for recessed
location.
D = Minimum width for back wall
of a recessed location.
Combustible 38"(965mm)
Noncombustible 24"(610mm)
E = Clearance from corner in
recessed location.
Combustible 6"(152mm)
Noncombustible 2"(50mm)
20" 20"
508mm 508mm
TOP VIEW TOP VIEW
CROSS CORNER VENT
TO THE RIGHT.
C
Fig. 13
45
Fig. 14