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TYPE OF SHIELD
Sheet metal, a minimum of 24 gauge (0.61 mm)
in thickness , spaced out at least 1" (25 mm)* by
non-combustible spacers
Ceramic tiles, or equivalent non-combustible
material, on non-combustible board spaced
out at least 1" (25 mm)* by non-combustible
spacers
Ceramic tiles, or equivalent non-combustible
material, on non-combustible board, with a
minimum of 24 gauge (0.61 mm) sheet metal
backing spaced out at least 1" (25 mm)* by
non-combustible spacers
Brick, spaced out at least 1" (25 mm)* by non-
combustible spacers
Brick, with a minimum of 24 gauge (0.61 mm)
sheet metal backing, spaced out at least 1"
(25 mm)* by non-combustible spacers
* In Canada this space can be ⅞" (21 mm).
Installation and Operation Manual - Solution 3.3
CLEARANCES MAY BE REDUCED BY
THESE PERCENTAGES
SIDES AND REAR
TOP (CEILING)
CAN /
USA
CAN /
USA (%)
MIN.
USA (%)
12"
67
50
(305 mm)
18"
50
33
(457 mm)
12"
67
50
(305 mm)
18"
50
N/A
(457 mm)
12"
67
N/A
(305 mm)
USA
MIN.
18"
(457 mm)
24"
(610 mm)
24"
(610 mm)
N/A
N/A
Page 35
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