Installation Manual
31
Majestic • ECHEL36IN/STIN, ECHEL48IN/STIN, ECHEL60IN, ECHEL72IN Installation Manual • 2406-970 Rev. C • 1/17 
A.  Pipe Clearances to Combustibles
WARNING! Risk of Fire! Maintain air space clearance 
to vent. DO NOT pack insulation or other combustibles:
• Between ceiling fi restops
•  Between wall shield fi restops
•  Around vent system
Failure to keep insulation or other material away from 
vent pipe could cause overheating and fi re.
5 
5 
Vent Clearances and Framing   
B.  Wall Penetration Framing/Firestops
Combustible Wall Penetration
Whenever a combustible wall is penetrated, you must 
frame a hole for the wall shield fi restop(s). The wall shield 
fi restop maintains minimum clearances and prevents cold 
air infi ltration.
•  The opening must be framed on all four sides using the 
same size framing materials as those used in the wall 
construction.
• DVP pipe - A wall shield fi restop must be placed on 
each side of an interior wall. A minimum 1-1/2 in. (38 
mm) overlap of attached heat shields must be main-
tained.
•  See Section 7.F. for information for regarding the instal-
lation of a horizontal termination cap.
Non-Combustible Wall Penetration
If the hole being penetrated is surrounded by non-com-
bustible materials such as concrete, a hole with diameter 
one inch greater than the pipe is acceptable.
Note:  Do not pack the gap with insulation.
Whenever a non-combustible wall is penetrated, the wall 
shield fi restop is only required on one side and no heat 
shield is necessary.
Figure 5.1 Horizontal Venting Clearances To Combustible
 Materials
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm). 
DVP heat shield - designed to be used on a wall 4 in. to 7-1/4 in. 
(102 mm to 184 mm) thick.
,IZDOOWKLFNQHVVLVOHVVWKDQLQWKHH[LVWLQJKHDWVKLHOGVPXVWEH
ILHOG WULPPHG ,I ZDOO WKLFNQHVV LV JUHDWHU WKDQ  LQ D '93-
HSM-B will be required.
(DVP Pipe Shown)
3 in. (76 mm)
top clearance *
1 in. (25 mm)
clearance
bottom & sides
Heat
Shield
Wall
Shield
Firestop
Heat
Shield
WALL
3 in. (76 mm)
top clearance
1 in. (25 mm)
clearance around
vertical sections
Figure 5.2 Wall Penetration
*  Shows center of vent framing hole for top venting. The 
center of the hole is one (1) in. (25.4 mm) above the 
center of the horizontal vent pipe.
MODEL         A*  B
ECHEL36IN
 ECHEL48IN
ECHEL60IN
63 in.  62 in.
1.60 m 1.57 m
ECHEL36STIN 
ECHEL48STIN 
ECHEL72IN
75 in. 74 in.
1.9 m 1.9 m
A
10 in.
12 in.
B
DO NOT PACK WITH 
INSULATION OR 
OTHER MATERIAL










