Vertical Heat Release Designs - ORTAL Lyric Front Facing Series Installation And Operation Manual

Vertical Heat Release Designs

If your design cannot accommodate a horizontal heat release, a vertical heat release is acceptable.
Because heat rises, it will take longer for the heat to dissipate out of a vertically oriented heat release. To
compensate, a vertical heat release must be 30% larger than a horizontal heat release.
Series 40-110: Minimum 160 sq. in. of free air space for a vertical heat release
Series 140: Minimum 260 sq. in. of free air space for a vertical heat release
The heat release needs to start within 6 inches (0-6") of the ceiling. The vertical heat release can be
applied using (but is not limited to) the following methods:
Front Split Vertical Heat Release
Front Split Vertical Heat Release (Front Elevation)
12 Lyric Installation Manual: Built-in Models, April 2019