Master Forge WS110 Instrucciones De Funcionamiento Y Manual Del Propietario página 8

NFPA 211 (US ONLY) APPROVED WALL PASS THROUGH TECHNIQUES
Figure 4
ONLY APPROVED CANADIAN WALL PASS
THROUGH
Figure 5 (US ONLY)
Brick Masonry: Minimum 3.5 inch (89 mm)thick brick
masonry all framed into combustible wall with a min-
imum of 12 inch (305 mm) brick separation from clay
liner to combustibles. The fireclay liner shall run from
outer surface of brick wall to, but not beyond, the
inner surface of chimney flue liner and shall be firmly
cemented in place.
Figure 6 (US ONLY)
Insulated Sleeve: Solid-insulated, listed factory-built
chimney length of the same inside diameter as the
chimney connector and having 1 inch (25.4 mm) or
more of insulation with a minimum 9 inch (229 mm)
Master Forge Wood Fire Stove
air space between the outer wall of the chimney
length and combustibles.
Figure 7 (US ONLY)
Ventilated Thimble: Sheet steel chimney connector,
minimum 24 gauge in thickness, with a ventilated
thimble, minimum 24 gauge in thickness, having
two 1 inch (25.4 mm) air channels, separated from
combustibles by a minimum of 6 inches (152 mm) of
glass fiber insulation. Opening shall be covered, and
thimble supported with a sheet steel support, mini-
mum 24 gauge in thickness.
Figure 8 (US ONLY)
Chimney Section Pass-through: Solid insulated, listed
factory-built chimney length with an inside diameter
2 inches (51 mm) larger than the chimney connector
and having 1 inch (25.4 mm) or more of insulation,
serving as a pass-through for a single wall sheet
steel chimney connector of minimum 24 gauge
thickness, with a minimum 2 inches (51 mm) of air
space between the outer wall of chimney section and
combustibles. Minimum length of chimney section
shall be 12 inches (305 mm) chimney section spaced
1 inch (25.4 mm) away from connector using sheet
steel support plates on both ends of chimney section.
Opening shall be covered, and chimney section
supported on both sides with sheet steel support
securely fastened to wall surfaces of minimum 24
gauge thickness. Fasteners used to secure chimney
section shall not penetrate chimney flue liner.
E8
Operating Instructions and Owner's Manual