New Buck Corporation LITTLE JOHN Installation & Operation Manual page 18

Option
.
4 Use a 8" inside diameter solid insulated listed factory-built chimney length which has !' or more of solid
insulation. The minimum length of this chimney section shall be 12" and will serve as a pass-through for the
6" diameter chimney connector. There must be at lest a 12" air space between the outer wall of the chimney
section and any compatible materials. The chimney section shall be concentric with and spaced 1" away from
the chimney connector by means of sheet steel supports plates on both ends of the chimney section. The open
ing in the compatible wall shall be covered and the chimney section supported on both sides with sheet steel
supports which are at lest 24 gauge (0.024") in thickness. The sheet steel supports shall be securely fastened to
wall surfaces on all sides and shall be sized to fit and hold the chimney section. Fasteners used to secure
chimney sections shall not penetrate chimney flue liner. (See Figure 12). 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 Figure 13).
After all codes have been met, install unit according to (SECTION F. Page 15. or SECTION G Page 16.).
Figure 12
MASONRY CHIMNEY
CONSTRUCTED TO
NFPA 211
Option
5. In addition to the methods shown by options 1-4, a listed factory-built wall pass-through system may be
purchased and installed according to the instruction packaged with it to provide a safe method of passing
chimney connector through a compatible wall for a connection to a masonry chimney.
RIGHT
CHIMNEY FLUE
FLUE
LINER
CHIMNEY
THIMBLE
THIS EXAMPLE PERTAINS TO INSTALLATIONS 1-5
Figure 13
MINIMUM CHIMNEY CLEARANCE TO
BRICK AND COMBUSTIBLES IS 2"
MINIMUM CLEARANCE
2" ALL AROUND
1" AIR SPACE TO
CHIMNEY LENGTH
CHIMNEY CONNECTOR
TO HEATER
SOLID INSULATED,
LISTED FACTORY-BUILT
CHIMNEY LENGTH (12"
INCHES LONG MIN.)
SHEET STEEL SUP-
PORTS (24 GAUGE
MIN. THICKNESS.)
WRONG
Page 16
Page 16
SHEET STEEL SUP-
PORTS (24 GAUGE
MIN. THICKNESS.)
CHIMNEY
CHIMNEY
SECTION
CONNECTOR
MINIMUM CLEARANCE
2" AIR SPACE ALL
AROUND
WRONG