Connection Of Chimney Connector To Masonry Chimney Through A Combustible Wall; Using ( Section's - F. Or G. ) - New Buck Corporation LITTLE JOHN Installation & Operation Manual

CONNECTION OF CHIMNEY CONNECTOR TO
MASONRY CHIMNEY THROUGH COMBUSTIBLE WALL
There is five allowable options of connecting a chimney connector to a masonry chimney by passing through
a combustible wall. The NFPA Standard 211 allows the following wall pass-through systems.
(Use one of the options 1
Option.
.
1 Use a minimum 3 1/2" thick brick masonry wall framed into the combustible wall. A fireclay liner
(ASTM C315 or equivalent) having a 5/8" minimum wall thickness must be used and must be at lest
12" away from any material that could catch fire. See Figure 9.
The inside diameter of the fireclay liner shall be sized for the proper snug fit of a 6" diameter chimney
connector pipe. The fireclay liner shall run from the outer surface of the brick wall to, but not beyond,
the inner surface of the chimney flue and shall be firmly cemented in place. (See Page 16 Figure 13).
After all codes have been met, install unit according to (SECTION F Page 15. or SECTION G Page 16.).
Figure 9
MASONRY CHIMNEY
CONSTRUCTED TO
NFPA 211
Additional requirements pertaining to figure 9 above and other wall pass-through systems:
1. Insulation material used as part of wall pass-through system shall be of noncombustible material and shall have a thermal
conductivity of 1.0Btu • in./ft² • °F (4.88 kg • cal/hr • m² • °C) or less.
2. All clearances and thicknesses are minimums: large clearances and thicknesses are acceptable.
3. A chimney thimble, as shown for 3" and 4" above (installation option 3 or 4 ) shall be for types 3" and 4" connections to
facilitate removal of the chimney connector for cleaning. The chimney thimble shall be of ASTMC315 fire clay with 5/8"
minimum wall thickness, or material or equivalent durability. The inside diameter of the thimble shall be sized for the
proper snug fit of a 6" diameter chimney connector pipe. The thimble shall be installed without damage to the chimney
flue. The thimble shall extend through the chimney wall to, but not beyond the inner surface of the chimney flue and shall
be permanently cemented in place with high temperature cement.
4. A chimney connector to a masonry chimney, except for 2" above ( installation option 2 ) shall extend through the wall
pass-through system to the inner face of the chimney flue, but not beyond. It does not have to be fastened in place so long
as it cannot accidently be pulled out of the chimney or shoved into the chimney flue. If fasteners are used to secure the
chimney connector to a masonry chimney, the fasteners shall not penetrate the chimney flue liner.
NOTE: Any material used to close up any opening for the connector shall be noncombustible.
SECTION E.
. .
through 5 ).
CHIMNEY FLUE
FLUE
LINER
CHIMNEY
CONNECTOR
TO HEATER
MINIMUM 3 1/2"
MINIMUM CHIMNEY CLEARANCE TO
BRICK AND COMBUSTIBLES IS 2"
MINIMUM 12" TO
COMBUSTIBLES
OF BRICK ALL
AROUND
THIMBLE
MINIMUM
5/8" WALL
THICKNESS
THICK BRICK
MASONRY
WALL
Page 14
MINIMUM 12" TO
COMBUSTIBLES