DVRT41 Direct Vent Gas Fireplace
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)
Fig. 15 Termination clearances.
General Information Assembling Vent Pipes
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/NFPA 54. Only venting components manufactured by CFM Corporation may be used in Direct Vent systems.
Flex Vent Pipes
Before joining the flex vent pipe to the unit, apply a bead of high temperature sealant* (provided) to the 4” pipe exiting the fireplace. Secure flex vent piep in place with a hose clamp (provided).
*Be sure the flex pipe overlaps at least 1” (25mm) onto the collars of the fireplace and termination. If the termination has an internal bead, be sure to overlap and secure 1” (25mm) past the bead.
*Be sure the venint is actually crushed before pro- ceeding. Apply a tug to be sure the vent will not slip off the collars.
Repeat process with 7” flex vent pipe. The same procedure must be performed on the vent side.
Apply High Tempera- ture Sealant
Hose Clamp
FP1471
Fig. 16 Apply high temperature sealant to 4” and 7” pipes.
12 | 10006740 |
