12
Defiant
®
1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
ST248
wall shield construction
12/14/99 djt
Stud Wall
Framing
Wall Shield
Noncombus-
tible Spacers
and Fasteners
Drywall
Air Flow
Air Flow
Screen
Shield
Metal Spacer
ST248
Fig. 13
Approved wall shield construction.
Fireplace and Mantel Trim Shields
A fireplace installation requires special clearance
between the side of the stove and the right and left
walls, between the side of the stove and the decorative
side trim on the fireplace face, and between the top of
the stove and the mantel.
Noncombustible shields
installed 1” (25 mm) away
from the combustible surface
on noncombustible spacers,
called ventilated shields,
may be used to reduce
clearances.
To protect a mantel from the
heat of a stove in a fireplace
installation, use a custom-
made ventilated mantel
shield that is at least 48”
(1220 mm) long, centered
over the stove. (Fig. 14)
Ventilated shields for side
trim must extend the full length of the trim.
1" (25mm)
1/4" (6mm)
ST501
mantel and
trim shield
11/10/00 djt
ST501
Fig. 14
A custom-formed
mantel shield.
clothes, furniture, newspapers, firewood, etc. Keep-
ing those clearance areas empty assures that nearby
surfaces and objects will not overheat.
Safe ways to Reduce clearances
Clearance requirements are established to meet every
installation possibility, and they involve the combination
of these variables:
•
When the stove pipe has no listed heat shield
mounted on it.
•
When the wall has no heat shield mounted on it.
•
When the wall has a heat shield mounted on it.
•
When the wall and stove pipe have heat shields.
In general, the greatest clearance is required when you
place a stove and its connector near a wall with no heat
shield.
For example, when the Defiant is installed parallel to
the rear wall and no connector shield is used, it must
be at least 15” (381 mm) from the wall behind it and at
least 21” (533 mm) from walls on either side. These di-
mensions are measured from the top edge of the stove
to the combustible wall.
If the Defiant is installed in a corner and no shield is
used, the corners of the stove top must be at least 5”
(127 mm) from nearby walls.
Clearances may be reduced only by means approved
by the regulatory authority, and in accordance with the
clearances listed in this manual. Refer to Page 14 for
approved clearance reduction specifications.
NoTe:
A minimum ceiling height of 8’ (2.4 m) is re-
quired for all installations of the Defiant.
NoTe: installation of the Defiant is not permitted in
alcoves.
wall Shields
One way to reduce clearances is with a wall shield
constructed of 24 gauge or heavier sheet metal, or of
another noncombustible material such as 1/2” (13 mm)
insulation board such as Durock
®
or Wonderboard
®
, or
common brick “laid on flat,” with the 3
¹\₂
" (90 mm) side
down.
Shields must be spaced out from the combustible
surface 1" (25 mm) on noncombustible spacers, as in
Figure 13. The spacers should not be directly behind
the stove or chimney connector.
Air must be able to flow between the wall and the
shield. At least 50% of the bottom 1" (25 mm) of the
shield must be open, and the shield must be open at
the top. Metal screening across the top will keep small
stray objects from being trapped behind the shield. (Fig.
13)
The shield must be a minimum of 48" (1219 mm) tall,
and must extend at least 19" (483 mm) higher than the
top of the stove, whichever is higher. The shield behind
the chimney connector must be 30" (760 mm) wide,
centered behind the pipe; for installations that use an
approved prefabricated chimney to pass through the
ceiling, the shield behind the chimney connector must
stop 1" (25 mm) below the ceiling.
With 8” connections and chimneys, because of poten-
tially higher pipe temperatures, the shield must extend
the full height of the wall (up to 9’ (2.7 m)) and stop 1”
(25 mm) below the ceiling.
