Vermont Castings Defiant FlexBurn Homeowner's Installation And Operating Manual page 10

Defiant ® FlexBurn ™ 1975 Non-Catalytic / Catalytic Woodburning Stove
18" (460mm) clear-
ance between pipe and
sides/top/bottom of
opening
D E
F IA N
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
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, Stan-
dard for Fireplace Stoves, use an approved 1" (25 mm)
10
T
ST494
steel
wall pass thru
11/00
noncombustible hearth pad with k = 0.84 Btu/in ft
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 re-
quire the use of the supplied bottom heat shield.
Protection requirements vary somewhat between the Un-
tied 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
ST494
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.
D
E
A. 44"
B. 46"
C. 12"
hr °F
2
D.
E.
F. 16"
Fig. 12 Required floor protection dimensions.
B
E
E
F
A
U.S. canada
48" (1219 mm)
50" (1270 mm)
12" (305 mm) 8" Connector
10" 10" (250 mm) 6" Connector
ST500
Defiant
6" 8" (203 mm)
floor protection
6" 8" (203 mm)
1/31/02 djt
18" (460 mm)
hr °F
2
C
E
F
A
ST500
30005220