Osburn 2000 Owner's Manual page 9

TYPE OF PROTECTION
Sheet metal, a minimum of 0,024" (0,61mm) spaced out at
least 1" (25mm) by non-combustible spacers
graphic 2).
Ceramic tiles, or an equivalent non-combustible material on
fire-proof supports spaced out at least 1" (25 mm) by non-
combustible spacers (see graphic 3).
Ceramic tiles, or an equivalent non-combustible material on
fire-proof supports with a minimum of 0,024" (0,61 mm) sheet
metal backing spaced out at least 1" (25 mm) by non-
combustible spacers (see graphic 4)
Brick spaced out at least 1" (25 mm) by non-combustible
spacers (see graphic 5)
Brick with a minimum of 0,024" (0,61 mm) sheet metal
backing spaced out at least 1" (25 mm) by non-combustible
spacers (see graphic 6).
Reducing Clearances With
Sides and
Rear/Back
67%
(see
50%
67%
50%
67%
Shielding
Top
50%
33%
50%
N/A
N/A
8