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4.2
CHIMNEY INSTALLATION INSTRUCTIONS
1. Cut and frame the holes in the ceiling, floor and roof where the chimney will pass (see figure 25).
Use a plumb bob to line up the center of the holes. The sizes are indicated in table 1 for the floor
and ceiling holes and table 2 (page 24) for the roof holes.
CHIMNEY
MODEL
ASHT+ / HT6103+
S-2100+ / HT6000+
AC
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 26 & 27).
3. For ASHT+ / HT6103+ and S-2100+ / HT6000+ chimneys, place the first chimney length on the
fireplace. To lock it in place, turn _ of a turn clockwise. With the AC chimney, you must use a
starter section before installing the first chimney length (figure 28). Continue 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 29 & 30). 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 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.
SQUARE HOLE SIZE
OPENING
12 3/8" (314 mm)
14 1/8" (359 mm)
15 "
(380 mm)
Table 1
Figure 26
23
Figure 25
Figure 27
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