Vermont Castings, Majestic Products: DVR33
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
Inside Corner | Outside Corner | Recessed Location |
|
|
| B = |
| A = |
| Combustible |
A | Combustible |
| 6"(152mm) |
| 6"(152mm) | V | Noncombustible |
|
| 2"(50mm) | |
| Noncombustible | ||
V | 2"(50mm) | B |
|
Balcony - |
| Balcony - |
|
with no side wall |
| with perpendicular side wall | |
| G | H |
|
|
|
| |
| V |
| V |
|
| Combustible & | J |
G = |
|
| |
| NonCombustible |
| |
Combustible |
|
| |
|
|
| |
NonCombustible | H = 24"(610mm) |
| |
12"(305mm) |
| J = 20"(508mm) |
|
|
|
| |
D 
CC
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)
CFM115
Fig. 12 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” (50 mm) overlap and secure the joints with three sheet metal screws (Fig. 13). Wipe off excess sealant.
Canadian Installations:
The venting system must be installed in accordance with the current
USA Installations:
The venting system must conform to local codes and/ or the current National Fuel Code ANSI Z223.1.
Only venting components manufactured by Vermont Castings, Majestic Products may be used in Direct Vent systems.
1" (25 mm) from 
crimped end of pipe
Screw
CFM175
Fig. 13 Apply a bead of high temperature sealant.
10004920 | 11 |