Osburn 1100 MODEL INSERT Owner's Manual page 15

MINIMUM MASONRY
OPENING
21 3/4" (552 mm)
J
K 26" (660 mm)
L 12 7/8" (327 mm)
B
M
N
* For a 6" (152 mm) shelf. See Table SHELF POSITIONING (Section 2.5) for other shelf dimensions.
Note 1: From door opening. The depth of a non-combustible shelf in from of the insert is included in
the calculation of the floor protector's dimensions.
IMPORTANT: The masonry hearth should be at least 4 inches (102 mm) higher than the combustible
floor in front of it. If the hearth elevation is lower than 4 inches, the non-combustible floor protector in
front of the insert should have an R value equal or greater than 1.00.
FLOOR PROTECTOR
CANADA
18'' (457 mm) – Note1
8'' (203 mm)
N/A (USA only)
F
G
H
I
USA
16'' (406 mm) – Note 1
N/A (Canada only)
8'' (203 mm)
15
CLEARANCES
13" (330 mm)
9" (229 mm)
27" (686 mm)
27" (686 mm)*