Installation Of A Combustible Mantel Shelf; Floor Protection - Osburn MATRIX 2700 INSERT Installation And Operation Manual

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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 12" (305 mm)
above the insert.
At a height of more than 12" (305 mm), the shelf must still
have a maximum depth of 12" (305 mm). The height of the
shelf is measured from the top of the faceplate, with or
without the projection kit.
9.2

Floor Protection

9.2.1
Without a projection kit
The standard configuration of the insert does not include any projection of the insert in front of
the fireplace opening.
It is necessary to have a floor protection made of non-combustible materials without R factor
respecting the measures indicated in the table below. This table may be used only if the masonry
hearth is raised at least 5"(127 mm) above the combustible floor.
Table 2 : Floor Protection
FLOOR PROTECTION
Canada
B
18" (457 mm)
13
M
8" (203 mm)
N
N/A
To determine the need to add floor protection (D) beyond the hearth extension (A), the following
calculation must be done using the data in
this section: D = B - G, where G = A-C.
13
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.
Page 28
USA
16" (406 mm)
N/A
8" (203 mm)
«Table 3 : Data for Floor Protection Calculation»
12"
(305 mm)
MAX.
12"
(305 mm)
MIN.
B
N
Figure 11: Floor Protection
Installation and Operation Manual - Matrix 2700 Insert
M
DOOR
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