Vermont Castings Intrepid II Installation & Operating Manual page 10

Flexible Connector
Mantel Shield
Fireplace Adapter Kit
Figure 8 - Chimney connector enters chimney through the fireplace
opening.
In the United States, the National Fire Protection A ssociation
ST245
(NFPA) has established guidelines for passing chimney
fireplace
connectors through combustible walls. Many building
flex connector
code inspectors follow these guidelines when approving
12/99
installations.
Figure 9 shows one NFPA-recommended method. All
combustible material in the wall is cut away from the
single-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
I N
T
R E
I P D
I I
Floor
Protection
Figure 9 - An approved wall pass-through for the United States.
10
ST493a
Brick pass thru
T
12" of
Noncombustible
Material
Vermont Castings • Intrepid II Installation & Operating Manual_R48 • 11/17
Three other methods are also recommended by NFPA:
•
Using a section of double-wall chimney with a 9" (230
mm) clearance to combustibles.
•
Placing a section of chimney connector inside a ventilated
thimble, which in turn is separated from combustibles by
6" (150 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" (50 mm) of air space between the chimney section
and combustibles.
In Canada, The Canadian Standards Association has
established installation guidelines. The following illustration
shows one method, in which all combustible material in the
wall is cut away to provide the required 18" (460 mm) clearance
for the connector. The resulting space must remain empty. A
flush-mounted sheet metal cover may 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.
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.
18" (460mm) clearance
all around the pipe
I N
T
R E
I P D
I I
Figure 10 - An approved wall pass-through for Canada.
NOTE: Do not vent your Intrepid II into a factory-built (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 AN INTREPID II TO ANY AIR
DISTRIBUTION DUCT OR SYSTEM.
T
Flush Mounted
Sheet Metal Cover
ST494
steel
wall pass thru
11/00
3-90-2000966