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Heatilator • I80 CAN-US • 4013-203 Rev F • 04/08
27
Termination Cap
Storm Collar
Slope Downward
Turn-down
Drip Edge
Chase
(Chimney)
2 in. (51 mm) Collar
on Chase Top
Caulk
.018 (26 ga) min.
Galvanized
Chase Top
Figure 6.3 Chase Top Construction
2 in. (51 mm) min. collar
6 in. (152mm) min.
2 in. (51 mm) min.
Storm Collar
Flashing Collar
Minimum 1-1/2 in. (38 mm) overlap of cap over pipe
Figure 6.4 Installing a TR11 or TR444 Round Termination Cap
Storm Collar
Flashing Collar
Top of Pipe
14-1/2 in. (368mm) max.
1-1/2 in. (38 mm) min.
overlap
2 in. (51 mm) min.
Figure 6.5 Installing a TR11T or TR442 Round Telescoping Termi-
nation
Cap
Note: To protect against the effect of corrosion on those
parts exposed to the weather, the termination cap can be
painted with a rust-resistant paint.
Fire Risk
• The minimum overlap of cap to pipe
MUST be met or chimney may separate
from cap.
Separation allows sparks, heat and embers
to escape.
WARNING
C. Install the Termination Cap
• For installations utilizing a TR11T or TR442 Round
Telescoping Termination Cap, the uppermost chimney
section must be below the top of the chase top, but not
more than 14-1/2 in. (368 mm) below the top of the chase
top. Minimum overlap of chimney and termination cap
must be 1-1/2 in. (38 mm). See Figure 6.5.
• Install the chimney sections up through the chase
enclosure. When using a TR11 or TR444 Round
Termination Cap, the uppermost top section of pipe must
extend 6 in. (152 mm) above the top of the fl ashing collar
to allow installation of the storm collar and termination cap.
See Figure 6.4.
B. Chase Top
A metal chase top is required to seal the top of the chase
around the chimney pipe. The top should include a turn-
down and drip edge to prevent water from seeping into the
chase. Provide a 1/8 in. (3 mm) gap around the fl ue pipe
and slope the top downward away from the penetration. See
Figure 6.3.
• All seams must be caulked to prevent leaks.
• A chase installation must use a chase top. Chase tops
are available from your Heatilator dealer or may be fi eld
constructed.
• Attach the chase top to the top of the chase.