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9. Clearances to Combustible Material
When the insert is installed so that its surfaces are at or beyond the minimum clearances
specified, combustible surfaces will not overheat under normal and even abnormal operating
conditions.
NO PART OF THE INSERT MAY BE LOCATED CLOSER TO THE COMBUSTIBLE THAN THE
MINIMUM CLEARANCE FIGURES GIVEN.
9.1
Installation of a Combustible Mantel Shelf
It is possible to install a combustible shelf with a maximum depth of 12" (305 mm) at a height of
at least 27" (686 mm) above the insert. At a height of more than 27" (686 mm), the shelf must
still have a maximum depth of 12" (305 mm).
Table 2 : Mantel Shelf Clearances
MAXIMUM
MANTEL SHELF
DIMENSION (X)
12" (305mm) max.
9.2
Floor Protection
It is necessary to have a floor protection made of non-combustible materials that meets the
measurements specified in the
Table 3 : Floor Protection
FLOOR PROTECTION
Canada
B
18" (457 mm)
15
M
8" (203 mm)
N
N/A
From door opening. The depth of the hearth extension in front of the insert is included in the calculation of the floor protector's dimensions. The
15
masonry hearth should be at least 6" (152 mm) higher than the combustible floor in front of it and a floor protection must extend at least 16"
(406 mm USA) and at least 18" (457 mm Canada) without an R value. If the hearth elevation is lower than 6" (152 mm), the non-combustible (B)
floor protection in front of the insert should have an R value equal or greater than 2.00 and shall extend 27" (686 mm) in front of the unit.
Installation and Operation Manual - Solution 3.5-I
MANTEL SHELF
CLEARANCES (I)
27" (686 mm) min.
«Table 3 : Floor Protection»
USA
16" (406 mm)
N/A
8" (203 mm)
X
I
Shelf Clearances
below.
B
N
Floor Protection
M
DOOR
Page 33
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