Vermont Castings 2040 Installation And Operating Manual page 8

Encore FlexBurn 2040 Non-Catalytic / Catalytic Wood Burning Stove
® ®
Flexible
Connector
Mantel Shield
Fireplace Adapter Kit
"Positive Connection"
Fig. 8 Through the fireplace installation.
In the United States, the National Fire Protection Associa-
tion (NFPA) has established guidelines for passing chimney
connectors through combustible walls. Many building
ST245
code inspectors follow these guidelines when approving fireplace
flex connector
installations.
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Figure 9 shows one NFPA-recommended method. All
combustible material in the wall is cut away from the sin-
gle-wall connector to provide the required 12" (305 mm)
clearance. Any material used to close up the opening must
be noncombustible.
Wall Stud
Chimney
Connector
Floor Protec-
tion
Fig. 9 An approved wall pass-through for the United States.
8
T
12" of
Noncombustible
Material
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Three other methods are also approved by the NFPA:
•
Placing a section of chimney connector inside a venti-
lated thimble, which in turn is separated from combus-
tibles by 6" (152 mm) of fiberglass insulating material.
•
Placing a section of chimney connector inside a section
of 9" (230 mm) diameter, solid-insulated, factory-built
chimney, with 2" (51 mm) of air space between the
chimney section and combustibles.
•
Using a section of solid-insulated double-wall high
temperature chimney, with an inside diameter the same
as the chimney connector, at least one inch of solid
insulation, and a minimum of 9" (229 mm) air space
between the outer wall of the chimney section and
combustibles.
In Canada, The Canadian Standards Association has es-
tablished different guidelines for wall pass-throughs. Figure
10 shows one method, in which all combustible material in
the wall is cut away to provide the required 18" (457 mm)
clearance for the connector. The resulting space must
remain empty. A flush-mounted sheet metal cover may
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be used on one side only. If covers must be used on both
sides, each cover must be mounted on noncombustible
spacers at least 1" (25 mm) clear of the wall.
18" (460mm) clearance
between pipe and
sides/top/bottom of
opening
Fig. 10 An approved wall pass-through for Canada.
Your local dealer or your local building inspector can
provide details for other approved methods of passing
a chimney connector through a combustible wall in your
area. In Canada, this type of installation must conform to
CAN/CSA-B365, Installation Code for Solid Fuel Burning
Appliances and Equipment.
NOTE: Do not vent your Encore
(zero-clearance) fireplace. These appliances and their
chimneys are specifically designed as a unit for use as
fireplaces. It may void the listing or be hazardous to adapt
them for any other use.
DO NOT CONNECT THE Encore
ST493
BUTION DUCT OR SYSTEM.
T
ST494
steel
wall pass thru
11/00
into a factory-built
®
TO ANY AIR DISTRI-
®
30005295
ST494