Page 10
Product Specification Manual - HEI350
ENGLISH
2. 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.
2.1 Minimum Masonry Opening and Clearances to Combustibles
COMBUSTIBLE MANTEL SHELF
COMBUSTIBLE
TOP SURROUND
C
O
M
BU
ST
IB
LE
SI
D
E
SURR
O
UN
D
AD
JA
C
EN
T
SI
D
E
W
AL
L
FLOOR PROTECTION
J
I
H
Q
G
F
K
L
O
P
Masonry Opening and Clearances
MINIMUM CLEARANCES
F
19" (483 mm)
G
9" (229 mm)
H
27" (686 mm)
I
27" (686 mm)
Q
84" (213 cm)
MAXIMUM THICKNESS
O
5" (127 mm)
P
12" (305 mm)
MINIMUM MASONRY
OPENING
J
26 ¼" (660 mm)
K
14
31" (787 mm)
L
18 3/8
"
(457 mm)
14
If a fresh air intake is required, it is recommended to add at least 4" to the width of the minimum opening of the hearth.
