Heat & Glo LifeStyle WS-250 Installation Using Masonry Or Brick Chimney, Supports AS a Thimble

INSTALLATION USING MASONRY

OR BRICK CHIMNEY		spacer to the chimney side of the frame. Then insert
Minimum 3 ½" (89mm) [4" (102mm) nominal] thick		the frame into the opening, toe-nailing it to the wall
		studs. Install the wall band in the framing to secure
solid bricks are to be used. The fire clay liner (ASTM
		the chimney section in place. Insert a single section
C35 or equivalent), 5/8" (16mm) wall thickness, must
		of chimney connector into the chimney through the
not penetrate into the chimney beyond the inner
		wall band, being sure it does not protrude into the
surface of the chimney flue liner and must be firmly
		chimney beyond the edge of the chimney flue lining.
cemented in place. If it is necessary to cut a hole in
the chimney liner, use extreme care to keep it from		Apply high temperature furnace cement to the end of
shattering. Refractory mortar must be used at the		the chimney section and install it over the connector,
junction with the chimney liner. After the assembly is		through the wall band, and through the wall spacer.
complete, insert the chimney connector into the fire		Tighten the wall band to hold the chimney section firmly
clay liner. Do not push it beyond the inside edge of		in place and against the chimney. Install the trim col-
the chimney liner, as this will affect the draw of the		lar on the outside of the opening.
chimney.		Check to insure there is a 1" (25mm) air space be-
B. 6" SOLID PACK CHIMNEY WITH METAL		tween the connector and the chimney section. Also,
		during installation, always check to insure that a 2"
SUPPORTS AS A THIMBLE:
		(50mm) air space is being maintained to the wood
For the method of installation to a masonry chimney
		framing. Do not fill this space with insulation. Insula-
shown in Figures 13 and 14 , it will be necessary to
		tion in this air space will cause a heat buildup which
purchase a 6" (152mm) inside diameter, 12" (305mm)
		may ignite the wood framing.
long section of prefabricated listed solid pack chim-
ney to use as a thimble. Purchase a wall
spacer, trim collar and wall band that
are manufactured to fit the chimney
section you purchase. Cut out a 14 ½"
(368mm) diameter opening in the wall.
It may be necessary to cut wall studs
and install a header and sill frame to
maintain the wall support. The hole in
the chimney must have at least a 6"
(152mm) diameter fire clay liner or
equivalent, secured with refractory mor-
tar. If it is necessary to cut a hole in the
chimney liner, use extreme care to keep
it from shattering.
The safety features of this system are
the 2" (50mm) air space between the
chimney section and combustible wall
and the 1" (25mm) air space around the
chimney connector as it passes through
the chimney section to the chimney. The
location of the opening through the wall
to the chimney must leave a minimum
18" (457mm) vertical clearance be-
tween the connector pipe and the ceil-
ing, to prevent the ceiling from catching
fire when using single wall pipe.
First, build the frame for the thimble,
making sure that it is no smaller than
14½" (368mm) diameter, which will
maintain a 2" (50mm) air space around	FIGURE 12
the chimney section. Attach the wall

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