Vermont Castings Encore 2550 Installating And Operation Manual page 8

Encore Woodburning Stove
•
The fireplace damper must be sealed to prevent
room air from escaping up the flue. However, it must be
possible to re-open the damper to inspect or clean the
chimney.
Chimney
Connector Shields
* Check
These Clear-
ances
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Fig. 8 In this installation, the chimney connector is attached
to the chimney above the fireplace opening.
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Through the Fireplace
Plymouth
fplc over mantel
If your fireplace opening height is at least 26¹⁄₂" (675 mm),
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you may install an Encore through the opening using a
"positive connection" kit, available from your local dealer.
These positive connection kits ensure a tight fit between
the stove flue collar and the chimney flue. (Fig. 9)
Fireplace installations, whether connected to the flue
above or through the fireplace opening, have special
clearance requirements to adjacent trim and the mantel.
You'll find the required safe clearances for Encore fire-
place installations on Page 12.
Floor protection requirements also apply to fireplace
installations. This information is on Page 10.
Wall Pass-Throughs
Whenever possible, design your installation so the con-
nector does not pass through a combustible wall. If you
are considering a wall pass-through in your installation,
check with your building inspector before you begin.
Also, check with the chimney connector manufacturer
for any specific requirements.
Accessories are available for use as wall pass-
throughs. If using one of these, make sure it has been
tested and listed for use as a wall pass-through.
8
*
*
Mantel
Seal this off
Flexible Connector
Mantel Shield
Fireplace Adapter
Kit "Positive Con-
nection"
Fig. 9 In this installation, the chimney connector enters the
firepalce opening and then connects to the chimney.
In the United States, the National Fire Protection As- ST245
fireplace
sociation (NFPA) has established guidelines for passing
flex connector
chimney connectors through combustible walls. Many
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building code inspectors follow these guidelines when
approving installations.
Figure 10 shows one NFPA-recommended method.
All combustible material in the wall is cut away from
the single-wall connector to provide the required 12"
(305mm) clearance. Any material used to close up the
opening must be noncombustible.
Three other methods are also approved by the NFPA:
•
Using a section of double-wall chimney with a 9"
(229 mm) clearance to combustibles.
•
Placing a section of chimney connector inside
a ventilated thimble, which in turn is separated from
combustibles by 6" (152 mm) of fiberglass insulating
material.
•
Placing a section of chimney connector inside a
section of 9" (230 mm) diameter, solid-insulated, facto-
ry-built chimney, with 2" (51 mm) of air space between
the chimney section and combustibles.
In Canada, The Canadian Standards Association has
established different guidelines. Figure 10 shows one
method, in which all combustible material in the wall is
cut away to provide the required 18" (457 mm) clear-
ance for the connector. The resulting space must re-
main 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.
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