15
UPDATED 09/20/2013
Method C
6” (152.4 mm) Clearance to Combustible Wall Member:
Starting with a minimum 24 gage (.024” [.61 mm]) 6” (152.4 mm) metal chimney connector,
and a minimum 24 gage ventilated wall thimble which has two air channels of 1 in. (25.4 mm)
each, construct a wall pass-through. There shall be a minimum 6” (152.4) mm separation area
containing fi berglass insulation, from the outer surface of the wall thimble to wall combustibles.
Support the wall thimble, and cover its opening with a 24-gauge minimum sheet metal support.
Maintain the 6” (152.4 mm) space. There should also be a support sized to fi t and hold the metal
chimney connector. See that the supports are fastened securely to wall surfaces on all sides. Make
sure fasteners used to secure the metal chimney connector do not penetrate chimney fl ue liner.
-INIMUMCHIMNE YCLEARANCETO
SHEETSTEELSUPPORTSANDCOMBUSTIBLES
INMM
4W OAIRCHANNELS
EACHINMM
#HIMNEYCONNECTOR
-INIMUMINMM
GLASSFIBERINSULATION
3HEETSTEELSUPPORTS
-ASONYCHIMNEY
#HIMNE
YFLUE
4W OVENTILATEDAIRCHANNELS
EACHIN MM
#ONSTRUCTIONOFSHEETSTEEL
Method D
2” (50.8 mm) Clearance to Combustible Wall Member:
Start with a solid-pak listed factory built chimney section at least 12” (304 mm) long, with insulation of
1” (25.4 mm) or more, and an inside diameter of 8” (2 inches [51 mm] larger than the 6” [152.4 mm]
chimney connector). Use this as a pass-through for a minimum 24-gauge single wall steel chimney
connector. Keep solid-pak section concentric with and spaced 1” (25.4 mm) off the chimney connector
by way of sheet metal support plates at both ends of chimney section. Cover opening with and support
chimney section on both sides with 24 gage minimum sheet metal supports. See that the supports are
fastened securely to wall surfaces on all sides. Make sure fasteners used to secure chimney fl ue liner
do not penetrate the liner.
3HEETSTEEL
SUPPORTS
#HIMNEY
CONNECTOR
#HIMNEY
SECTION
!IRSPACEIN
MM
-INIMUMCHIMNEYCLEARANCETO
SHEETSTEELSUPPORTS ANDCOMBUSTIBLES
INMM
-INIMUMCLEARANCE
INMM
INMM AIR
SPACETOCHIMNEYLENGTH
#HIMNEYCONNECTOR
3HEETSTEELSUPPORTS
#HIMNEYLENGTH
-ASONYCHIMNEY
Summary of Contents for 04201
Page 33: ...33 UPDATED 09 20 2013 ...
