General Information For Connecting Vent Pipes; Crimped End Pipes - Vermont Castings DVRT36 Homeowner's Installation & Operating Manual

Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
Inside Corner
A =
A
Combustible
Noncombustible
V
Balcony
with no side wall
G
G =
Combustible
Noncombustible
12" (305 mm)
Fig. 15 Termination clearances.

General Information for Connecting Vent Pipes

Crimped End Pipes

Before joining elbows and pipes, apply a bead of high
temperature sealant to the crimped end of the elbow or
pipe.
Join the pipes using a 2" (51mm) overlap and secure
the joints with three (3) sheet metal screws. (Fig. 16)
Wipe off excess sealant.
Canadian Installations:
The venting system must be installed in accordance
with the current CSA-B149.1 installation code.
USA Installations:
The venting system must conform to local codes and/
or the current National Fuel Code ANSI Z223.1/NFPA
54.
10002428
Outside Corner
6" (152 mm)
V
2" (51 mm)
Balcony
with perpendicular side wall
V
Combustible &
Noncombustible
H = 24" (610 mm)
J = 20" (508 mm)
Vermont Castings, Majestic Products DVRT36/ 39/ 43
B =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
B
H
V
J
Fig. 16 Apply a bead of high temperature sealant.
Only venting components manufactured by Vermont
Castings, Majestic Products may be used in Direct
Vent systems.
Recessed Location
D
C
C
E
V
C = Maximum depth of 48"
(1219mm) for recessed
location.
D = Minimum width for back wall
of a recessed location.
Combustible 38" (965 mm)
Noncombustible 24" (610 mm)
E = Clearance from corner in
recessed location.
Combustible 6" (152 mm)
Noncombustible 2" (50 mm)
1" (25 mm) from
crimped end of pipe
Screw
Holes
CFM115
CFM175
13