Osburn 1700-I, Installation And Operation Manual

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Page 30 Installation and Operation Manual - Osburn 1700-I
ENGLISH
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)
MANTEL SHELF
CLEARANCES (I)
12" (305mm) max. 27" (686 mm) min.
X
I
Figure 20: Shelf Clearances
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» below.
Table 3 : Floor Protection
FLOOR PROTECTION
Canada USA
B
13
18" (457 mm) 16" (406 mm)
M 8" (203 mm) N/A
N N/A 8" (203 mm)
N
M
B
DOOR
Figure 21: Floor Protection
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. The
masonry hearth should be at least 4" (102 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 4" (102 mm), the non-combustible (B)
floor protection in front of the insert should have an R value equal or greater than 1.00 and shall extend 22" (560 mm) in front of the unit.