Vermont Casting 2170 - Manual (Page 8)

8
Dutchwest Seneca
2006063
Floor Protection
A tremendous amount of heat radiates from the bottom
plate of your Seneca stove. The floor area directly
under and around the stove will require protection from
radiant heat as well as from stray sparks or embers
that may escape the firebox.
Heat protection is provided through the use of a
Dutchwest Bottom Heat Shield. Spark and ember
protection must be provided by a floor protector
constructed with noncombustible material as specified.
Most installations will require that the bottom heat
shield be attached. Only when the stove is placed on a
completely noncombustible surface such as unpainted
concrete over earth may it be used without the heat
shield.
Even when the bottom heat shield is installed, you
must provide special protection to the floor beneath.
For installation with the heat shield attached, use a
noncombustible floor protector such as 1/4" non-
asbestos mineral board or equivalent, or 24 gauge
sheet metal. The floor protector may be covered with a
decorative noncombustible material if desired. Do not
obstruct the space under the heater.
Protection requirements vary somewhat between the
United States and Canada as follows:
18” (450mm)
Empty Space All
Around the
Chimney
Connector
Sheet Metal
Cover
(One side
only)
ST728
Fig. 10 Hollow wall pass-through.
Many building code inspectors follow these guidelines
when approving installations.
Figure 9 shows one NFPA-recommended method. All
combustible material in the wall is cut away a sufficient
distance form the single-wall connector to provide the
required 12” clearance for the connector. Any material
used to close up the opening must be noncombustible.
Three other methods are also approved by the NFPA.
These are:
• Using a section of double-wall chimney with a 9 inch
clearance to combustibles.
• Placing a chimney connector pipe inside a ventilated
thimble, which is then separated from combustibles
by six inches of fiberglass insulating material.
• Placing a chimney connector pipe inside a section of
8 inch diameter, solid-insulated, factory-built chim-
ney, with two inches 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” (450mm) clear-
ance for the connector. The resulting space must
remain empty. A flush-mounted sheet metal cover may
be using on one side only. If covers must be used on
both sides, each cover must be mounted on noncom-
bustible spacers at least 1” (25mm) clear of the wall.
Your local dealer or your local building inspector can
provide details of other approved methods of passing a
chimney connector through a combustible wall. In
Canada, this type of installation must conform to CAN/
CSA-B365, Installation Code for Solid Fuel Burning
Appliances and Equipment.
Chimney
Connector
ST727
Fig. 9 Wall pass-through enclosed with noncombustible
materials.
1/2” (13mm)
Noncombustible
Material
NOTE: Do not vent your Seneca 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 to any other use.
DO NOT CONNECT THE HEATER TO ANY AIR
DISTRIBUTION DUCT OR SYSTEM.