Omni Group GREEN SMART 864 - Manual (Page 37)

Installation
(for qualified installers only)
37
© Travis Industries 4090507 100-01217_000
Mantel Requirements
Combustible Mantels
• Use the table below to determine the maximum mantel depth allowed. The mantel depth (measured from the
face of the fireplace) must fall in the shaded portion of the table.
• Any material that protrudes more than 3/4” (19mm) from the non-combustible facing is considered a mantel
and must meet the mantel requirements.
36-3/4"
933mm
a
b
Maximum Mantel Depth (b)
Mantel
Height
Above
Face (a)
0”
(25mm) 1"
(51mm) 2"
(203mm) 8"
(178mm) 7"
(152mm) 6"
(127mm) 5"
(102mm) 4"
(76mm) 3"
(229mm) 9"
0”
(254mm) 10"
(279mm) 11"
(305mm) 12"
(330mm) 13"
(356mm) 14"
(381mm) 15"
(406mm) 16"
(432mm) 17"
(457mm) 18+"
Base of the Fireplace
Combustible mantel columns (legs) that protrude
more than 3/4" (0.75mm) from the glass frame
must meet the sidewall clearance. If they
protrude 3/4" (0.75mm) or less, they must meet
the facing clearance 2-1/4" (57mm) from the
glass frame.
Non-combustible mantel columns do not have a
minimum clearance.
Combustible Mantel
1" (25mm) 2" (51mm) 8" (203mm) 7" (178mm) 6" (152mm) 5" (127mm) 4" (102mm) 3" (76mm) 9" (229mm) 10" (254mm) 11" (279mm) 12" (305mm)
Examples:
- If you wish to have an 8” (203mm) deep mantel, it must be at least 6-3/4” (171mm) above the fireplace face (44-3/4”, 1137mm above the base).
- If you wish to have a mantel 8” (203mm) above the fireplace face, it must be no deeper than 9” (229mm).
Non-Combustible Mantels
Non-combustible mantels must meet the clearances listed for combustible mantels. However, if you do wish to
reduce the clearances by using a non-combustible mantel, the following requirements must be met:
• Non-combustible mantel
and facing must extend
from the top of the
appliance to the top
surface of the mantel.
• A non-combustible
header must be used
(metal stud).
SIDE OF FIREPLACE
Drywall
Non-Combustible Mantel
Non-Combustible Framing (metal studs)
must be used for the header.
Non-Combustible Facing