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CHIMNEY INSTALLATION
INSTRUCTIONS
1. Cut and frame the holes in the ceiling, floor
and roof where the chimney will pass (see
Figure 21). Use a plumb-bob to line up the
center of the holes. The sizes are indicated
in Table 2 for the floor and ceiling holes
and Table 3 (Page 15) for the roof holes.
CHIMNEY MODEL
SqUARE HOLE
SIZE OPENING
ASHT+ / HT6103+
12-3/8" (314 mm)
S-2100+ / HT6000+
14-1/8" (359 mm)
AC
15 in (380 mm)
Note: See Table 3 for Sloped Roof Framing
Table 2 - Flat Roof Framing
Figure 21 - Roof Framing
2. From below, install a firestop in each ceiling/
floor separation through which the chimney
will pass. At the attic level, install an attic
radiation shield from above (Figures 22a
and 22b).
3. For ASHT+ / HT6103+ and S2100+ / HT6000+
chimneys place the first chimney length on
the fireplace. To lock it in place, turn 1/4 of
a turn clockwise. With the AC chimney, you
must use a starter section before installing
the first chimney length (Figure 23). Con-
tinue installing chimney lengths making sure
to lock each length in place.
4. Every time the chimney passes through
a ceiling or a wall, install the appropriate
firestop. When you reach the desired height,
install the roof support (Refer to instructions
included with the support).
5. Then, put the roof flashing in place and seal
the joint between the roof and the flashing
with roofing pitch (see Figures 24 and 25).
For sloping roofs, place the flashing under
the upper shingles and on top of the lower
shingles. Nail the flashing to the roof, using
roofing nails.
6. Place the spacers and the storm collar over
the flashing, and tighten it with the bolt
supplied. Finally, seal the joint between the
storm collar and the chimney, using silicone
caulking.
7. Install the chimney cap.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Attic Radiation Shield
ASHT / S2100
HT6103+ / HT6000+
Solid Packed Pipe
Figure 22a
AC
Attic Radiation
Air Cooled Pipe
Shield
Figure 22c
AC CHIMNEY INSTALLATION
(AIR COOLED GALVANIZED CHIMNEY)
Flashing
Chimney Outside
Air Intake
(required when
using AC chimney)
Outside Combustion
Air Kit
Figure 23
Flashing
Mobile / Manufactured Home with Flat Roof
Firestop
Figure 22b
Flashing
Radiation Shield
Mobile / Manufactured Home with Flat Roof
Figure 22d
Rain Cap
Collar
Attic Radiation
Shield
Universal Support
u
u
Combustibles are not allowed below top spacers
above the fireplace. Facing in front of fireplace must
be non-combustible below this area.
Attic Radiation
Shield
Roof
ASHT / S2100
HT6103+ / HT6000+
Attic Radiation
Shield
AC Chimney
Firestop
AC Starter Section
13
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