Framing Construction - Osburn STRATFORD II OB04007 Installation And Operation Manual

No part of the fireplace may be located closer to the combustible than the minimum
clearance given.
A material is considered non-combustible when made entirely of steel, iron, bricks, tiles,
concrete, slate, glass or a combination of these materials. Materials corresponding to ASTM
E136 and UL 763 are considered to be non-combustible materials with the exception of
gypsum, which will be considered a non-combustible material only if it is certified to withstand
an ambient temperature of use of 250°F and more.
− Maximum mantle depth 3" (76 mm)
− Mantle minimum distance 8" (203 mm) (measured from
the door opening)
− Side wall distance 13" (330 mm) (measured from the door
opening)
− Minimum distance to the wall in front of the fireplace 48"
(122 cm)
− Minimum ceiling height : 80" (2,03 m) measured from the
base of the fireplace.
Fireplace enclosure :
− Back wall : 0"
− Sides : 0"
− Floor (underneath the fireplace) : 0"
− Chimney : 2" (50 mm)
8.5

Framing Construction

The frame, on the sides and back of the fireplace, must be made of 2"x 3" (5 cm x 8 cm) or
larger. The front studs as well as headers on top of the fireplace must be of a depth no more
than the depth of the top standoffs. The standoffs can be installed either flush with the fireplace
or setback of ½" depending on the thickness of the finishing material used.
Installation and Operation Manual - Stratford II
3"
76mm
45°
8"
203mm
13"
330mm
1/2"
13mm
0"
0mm
DETAIL A
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