OPEL3 Owner's Manual
14
RSF Woodburning Fireplaces
OFFSET CHIMNEY
An elbow may be installed directly on top of the fireplace if required. See the detailed offset charts in the EXCEL
chimney installation manual. Use the offset option if you need to clear a joist or pass around a cupboard. See
Figure 10 and Figure 11 for examples.
•
Maximum offset angle:
•
In
USA
: 30°;
•
In
Canada
: 45°.
•
Maximum number of elbows: four, resulting in two offsets and returns.
Install the fireplace and chimney as described earlier. When you require an elbow, proceed as follows:
1. Install the required elbow. Turn it in the desired direction, and fasten it to the other section with 3 metal
screws at the joints.
2. Install enough lengths to obtain the desired offset. Secure each joint with 3 metal screws.
3. Use another elbow to return the chimney to the vertical direction.
4. Install a roof support, a wall support, or an offset support above each offset to support the weight of the
chimney (elbows are not designed to support the chimney above an offset).
Radiation
Shield
Use Offset
Support or
Roof Support
R
SF
Fi
re
pl
ac
e
Radiation
Shield
3 Metal Screws
in Each Joint
Rise
Offset
Figure 10 Offset Chimney Installation Example
10'
2' min.
Flashing*
with Storm
Collar & Roof
Radiation
Shield
1' min.
Radiation
Shield and
Offset, Roof or
Wall Support
Insulated Wall
Radiation
Shield
(30° or 45°)
*In
USA
: use a
vented flashing
*In
Canada
: use a
vented flashing or a
roof radiation shield
with a regular
flashing
RS
F
Fi
re
pl
ac
e
Figure 11 Offset Chimney Through a Wall
Example
