10
Defiant
®
1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
DEFIA
N
T
ST494
steel
wall pass thru
11/00
18” (460mm) clear-
ance between pipe and
sides/top/bottom of
opening
ST494
Fig. 11
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 Defiant 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 The DeFiaNT To aNy aiR DiS-
TRibUTioN DUcT oR SySTeM.
Floor protection
A tremendous amount of heat radiates from the bottom
plate of your 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 with the use of the Bottom
Heat Shield supplied with the stove.
Most installations will require the bottom heat shield
to 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 are installed, most
installations require special thermal protection (insula-
tion) for the floor beneath. Use an approved 1/2” (13
mm) noncombustible hearth pad with k = 0.84 BTU/in
ft
2
hr °F or an equivalent material with an R-value of
at least 0.59. (Refer to “How to Determine if Alternate
Floor Protection Materials are Acceptable” section.)
The floor protector may be covered with a decorative
noncombustible material if desired. Do not obstruct the
space under the heater.
When using a fire screen with doors open, UL737,
Standard for Fireplace Stoves, use an approved 1” (25
mm) noncombustible hearth pad with k = 0.84 Btu/in
ft
2
hr °F or an equivalent material with an R-value of
at least 1.18. (Refer to “How to Determine if alternate
Floor Protection Materials are Acceptable” section.)
The floor protector may be covered with a decorative
noncombustible material if desired. Do not obstruct the
space under the heater. An 8” chimney and chimney
connector is required an the bypass damper must be in
the fully open position.
important: all installations on a combustible floor
require the use of the supplied bottom heat shield.
Protection requirements vary somewhat between the
Untied States and Canada as follows:
in U. S. installations
the floor protector is required
under the stove and must extend at least 16” (not
including the ash lip) from the front of the stove (“F”,
Fig. 12), and at least 6” from the sides and rear. (“D”
and “E”, Fig. 12)
In rear venting configurations, floor protection must also
extend under the chimney connector and 2” to either
side. (“C”, Fig. 12) For the 8” (203 mm) connector, the
protector must be a minimum of 12” (305 mm) wide.
For the 6” (152 mm) connector, the protector must be
10” (254 mm) wide. The protector must be centered
under the connector.
To meet these requirements, a floor protector must be
at least 44” wide and 46” deep.
in canada:
A noncombustible floor protector is required
under the stove as well. The floor protector must
extend 18” (457 mm) to the front (“F”, Fig. 12), and 8”
(203 mm) from the sides and rear. (“D” and “E”, Fig. 12)
To meet these requirements, a floor protector must be
at least 46” (1168 mm) wide and 50” (1270 mm) deep.
how to Determine if alternate Floor
protection Materials are acceptable
All floor protection must be noncombustible (i.e. met-
als, brick, stone, mineral fiber boards, etc.). Any organic
materials (i.e. plastics, wood paper products, etc.) are
combustible and must not be used. The floor protection
specified includes some form of thermal designation
such as R-value (thermal resistance) or k-factor (ther-
mal conductivity).
