22
OFFSET CHIMNEY INSTALLATION
The minimum chimney height (including the fireplace) when using elbows is:
Fireplace Model
SECURE HE43-1
Chimney Model
8" ASHT+ / / S-2100+ / / AC
Vertical Installation
15 ft (4.57 m)
Two (2) Elbows
18 ft. (5.49 m)
Four (4) Elbows
20 ft. (6.10 m)
Table 4
NOTE: a maximum of 2 offsets is allowed.
After reaching the location requiring the elbow, proceed as follows:
ASHT+//S2100+/ Chimneys
1.
Install the first elbow. Turn it in the required direction. Fasten it to the chimney with the three (3) 1/2"
(12 mm) metal screws provided.
2.
Install the necessary lengths to achieve the required offset. Lock the chimney lengths together: it is
recommended to use three (3) 1/2" (12 mm) screws. If the offset length is made of two (2) chimney
lengths use an offset support halfway up the offset. If penetrating a wall, install a wall radiation shield
(see Figure 19).
3.
Use another elbow to turn the chimney vertically. Secure the elbow, using three (3) 1/2" (12 mm) screws.
4.
Use a plumb bob to line up the centre of the hole. Cut a hole for the chimney in the ceiling. Frame this
hole as described previously (see page 17).
5.
From below, install a radiation shield (see Figure 14a).
6.
A support (ST+ or SO+) must be used on the first 15’ section (5 m).
7.
Continue with the regular installation.
AC chimney
1.
Install the first elbow. Turn it in the required direction. To lock it in place, turn 1/8 of a turn. Fasten the
straps attached to the elbow to the surrounding framing using nails or drywall screws (Figure 17).
2.
Install the necessary chimney lengths to achieve the required offset. Lock the chimney lengths together.
If penetrating a wall, use a wall radiation shield.
3.
Use another elbow to turn the chimney vertically. Lock it to the chimney. Fasten the straps attached to
the elbow to the surrounding framing using nails or drywall screws.
4.
Use a plumb bob to line up the centre of the hole. Cut a hole for the chimney in the ceiling. Frame this
hole as described previously.
5.
From below, install a radiation shield (see Figure 14b).
6.
Continue with the regular installation.
N.B.:
An AC8SB starting section must be used before installing an elbow. Or you may use an AC8SB30
starting elbow.
