Heat & Glo Fireplace CERONA-36 - Manual (Page 19)

Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. H • 11/08 19
A. Pipe Clearances to Combustibles
6 6
Vent Clearances and Framing
B. Wall Penetration Framing
Combustible Wall Penetration
Frame a hole in a combustible wall for an interior wall
shield fi restop, (Figure 6.3) whenever a wall is penetrated.
Use same size framing materials as those used in the wall
construction. The wall shield fi restop maintains minimum
clearances and prevents cold air infi ltration.
Non-Combustible Wall Penetration
If the hole being penetrated is surrounded by noncombus-
tible materials such as concrete, a hole with diameter one
inch greater than the pipe is acceptable.
Whenever a non-combustible wall is penetrated, the wall
shield fi restop is only required on one side and no heat
shield is necessary.
If your local inspector requires the wall shield fi restop on
both sides, then both wall shield fi restops must have a heat
shield attached to them.
Fire Risk.
Explosion Risk.
Maintain vent clearance to combustibles as
specifi ed.
• Do not pack air space with insulation or
other materials.
Failure to keep insulation or other materials
away from vent pipe may cause fi re.
Figure 6.1 Pipe Clearances
1 in. CLEARANCE
AROUND VERTICAL
SECTIONS
3 in. TOP
CLEARANCE
1 in. SIDE AND
BOTTOM CLEARANCE
Figure 6.3 Exterior Wall Hole
Figure 6.2 Horizontal venting clearances to combustible
materials
A
B
HEAT
SHIELD
HEAT
SHIELD
1 in. CLEARANCE
BOTTOM & SIDES
WALL
WALL
SHIELD
FIRESTOP
3 in. TOP
CLEARANCE
WARNING
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm).
The heat shield is designed to be used on a wall 4 in. to 7-1/4 in.
(102 mm to 184 mm) thick. If wall thickness is less than 4 in. (102
mm) the existing heat shields must be fi eld trimmed. If wall thickness is
greater than 7-1/4 in. (184 mm) a DVP-HSM-B will be required.
A B
Cerona-36
in. 61-1/2 60-1/2
mm 1562 1537
Cerona-42
in. 72 71
mm 1829 1803
Shows center of 10 inch x 12 inch vent framing holes for
top and rear venting. The center of the hole is one (1) inch
(25.4 mm) above the center of the horizontal vent pipe.