Vent Pipe Clearances; Venting Diagrams; Offset (Bends/Elbows) Maximums - ORTAL Lyric Front Facing Series Installation And Operation Manual

Vent Pipe Clearances

The following clearances apply to all pipe
used a Lyric fireplace, regardless of which
pipe manufacturer is used.
Vertical Clearances:
-Maintain 1" clearance to any material on
entire circumference.
Horizontal Clearances:
-Maintain 1" clearance to any material on
bottom.
-Maintain 3" clearance to any material on
top. This clearance applies to pipe on a 45-
degree angle as well.
V Minimum
Series
(A)
90-140 3 ft
NOTE: It is not required to maintain ¼"
of rise per foot of pipe.

Venting Diagrams

The following sections provide information
for calculating venting run distances. Use the
diagram and tables below to calculate
distances for venting runs.

Offset (bends/elbows) Maximums

Up to 180˚ of offset may be used in your
venting run. This means either two 90˚
elbows, four 45˚ elbows, or any other
combination thereof. If your venting run
exceeds this maximum, consider an ORTAL
Power Vent System, which can allow for up to
540˚ of offset. See the ORTAL Power Vent
Manual for details.
Offset Maximum Exception:
If needed for clearance to TV recess, two 45˚ offsets may be used directly on the fireplace with up
to a 12'' section between them. The V minimum starts above them. They do not count in elbow
totals.
NOTE: If your initial vertical rise off the top of the fireplace does not meet the V minimum, consider
an ORTAL Power Vent System, which can allow for any initial vertical rise amount. See the ORTAL Power
Vent Manual for details.
50 Lyric Installation Manual: Built-in Models, April 2019