8
Dutchwest
30003847
Hearths
This appliance must be installed on to hearth that
meets the requirements of Part J of the Building Regu-
lations 2000 (Combustion Appliances and Fuel Storage
Systems). This can be achieved by ensuring that the
hearth is constructed and sized in accordance with the
guidelines included in section 2 of approved document
‘J’. The size and clearances of the hearth are as fol-
lows:
The constructed hearth should be constructed in ac-
cordance with the recommendations in document J,
and should be of minimum width 840 mm and minimum
depth 840 mm (if a free standing hearth b) above) or
a minimum projection of 150 mm from the jamb (if a
recessed hearth a) above).
Fireplace Installations -
Through the Fireplace
The Convection heaters may be installed either without
legs* as a fireplace insert, or with standard legs at-
tached - depending on the safety regulations that apply
to your situation, the height of the fireplace opening and
your own preference. For either situation, the chimney
connector/positive connection kit extends back from the
stove, enters the fireplace cavity, and turns upward. It
then passes through the fireplace damper opening and
smoke chamber and connects to the chimney flue.
In such installations, a “positive connection” must be
made to the chimney flue with a special kit available
from your local dealer. Also, special clearance and floor
protection provisions must be observed. These provi-
sions are discussed in the Clearance and Floor Protec-
tion sections respectively.
Wall Pass-Throughs
Whenever possible, design your installation so the con-
nector does not pass through a combustible wall. If you
must use a wall pass-through in your installation, check
with your building inspector before you begin and con-
struct it in accordance with local building codes. 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.
Figure 9 shows one method of passing a connector
through a wall. All combustible material in the wall is
cut away to provide the required 457 mm (18”) clear-
ance for the connector. The resulting space must
remain 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 mount-
ed on non-combustible
spacers at least 25
mm (1”) clear of the
wall. Your Dutchwest
dealer or your local
building inspector can
provide details of other
approved methods
of passing a chimney
connector through a
combustible wall.
DO NOT CONNECT
THE HEATER TO
ANY AIR DISTRIBUTION DUCT OR SYSTEM.
ST421
hollow
wall pass through
with noncombust
6/27/00 djt
460 mm (18”)
Empty Space
All Around
the Chimney
Connector
Sheet Metal
Cover
(One side
only)
ST421
Fig. 9
Hollow wall pass-through.
Costructional Hearth
Dimensions as below
At least
300 mm
At least 150 mm
or to a suitable
heat resistant wall
At least
150 mm
Hearth Surface
Free of Com-
bustible Material
Perimeter should be
clearly marked e.g.
edge of superimposed
hearth
Perimeter should be
clearly marked e.g.
edge of superimposed
hearth
Appliance
Doors
Appliance
Doors
ST912
Fig. 10
Noncombustible hearth surface dimensions.
a) Fireplace recess
b) Free standing
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