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33
Slope Downward
(1/4 in. per foot
minimum)
Turn-down
Drip Edge
Chase
2 in. (51 mm) Collar
on Chase Top
.018 (26 ga) min.
Galvanized
Chase Top
Figure 9.3 Chase Top Construction
B. Install Fireplace & Chimney
Install as per Sections 7 and 8.
Heat & Glo • HST-42D • 27177 • Rev AB • 11/08
C. Install Chase Top
• You MUST use a chase top in a chase installation. Chase
tops are available from your Heat & Glo dealer or may
be fi eld constructed.
• Include a turndown and drip edge to prevent water from
seeping into the chase.
• Include a 2 in. (51 mm) soldered, caulked or spun collar
around pipe opening to keep water out.
• Provide a 1/8 in. (3 mm) gap around the fl ue pipe.
• Slope the chase top downward away from the
opening.
CAUTION! DO NOT caulk the pipe to the chase top
collar.
• Caulk all seams to prevent leaks.
• Refer to Figure 9.4.