Install Fireplace & Chimney; Install Chase Top - Heat & Glo HST-48D Owner's Manual

B. Install Fireplace & Chimney
Install as per Sections 7 and 8.
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 field 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 flue 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.
Heat & Glo • HST-48D US-CAN • 4012-040 • Rev K• 3/12
Slope Downward
(1/4 in. per foot
minimum)
Figure 9.3 Chase Top Construction
2 in. (51 mm) Collar
on Chase Top
Turn-down
Drip Edge
Chase
.018 (26 ga) min.
Galvanized
Chase Top
33