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5
55505
Figure 8
Figure 5
Figure 6
Proceed to secure firebox
to prepared framing at nail-
ing flanges located at the
sides of the firebox as
shown in Figure 9.
HEARTH EXTENSIONS
A hearth extension is required to protect combustible floor surround-
ing firebox. You may fabricate your own per the dimensions shown
in Figure 10, page 6.
The hearth extension must project 20 in. min. to the front and 12 in.
min. beyond each side of the firebox opening except on the end
where projection is 16 in. min. to the front and 20 in. to the sides (see
Figure 10, page 6).
1/2 MIN.
OVERLAP
1/2 MIN.
METAL SAFETY STRIPS
(SUPPLIED)
1/2
MIN. TO
COMBUSTIBLES
2 MIN. CLEARANCE
FROM OUTER PIPE
TO COMBUSTIBLES
21
1
/
2
11
5
/
16
22
5
/
8
Ø15 OUTER PIPE
1/2" (12.7mm)
MIN. TO
COMBUSTIBLES
NAILING
FLANGES
PREPARED
FRAMING
NAILS OR
SCREWS
Figure 9
22
5
/
8
TOP STUDS MUST
CLEAR SPACERS
ON TOP OF UNIT
39
7
/
8
48
1
/
2
MIN.
22
5
/
8
PLATFORM MUST BE
SOLID, FLAT, AND
FULLY SUPPORTED
"Z" T
YPE
METAL
SAFETY
SHIELDS
(NOT
SUPPLIED)
AS REQUIRED BY DESIGN
AS LONG AS CEILING
CLEARANCE IS
MAINTAINED
*
39
7
/
8
48
1
/
2
MIN.
Figure 7