8
Dutchwest
®
Non-Catalytic Convection Heater
30003851
ST797
thru fireplace
5/04
Flue Liner
Extend Chimney
Connector to the
First Tile of the Flue
Liner
Observe
Miniumum Clearances
Damper
Plate is
Removed
or Locked
in Open
Position
Close Off
the Damper
Opening with
Sheet Metal
and Sealant
ST797
Fig. 8
The connector passes through the fireplace to enter
flue. Special Fireplace Adapter Kits to simplify fireplace instal-
lations are available from your local dealer.
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 450 mm (18”) clearance
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 mounted on non-combustible spacers
at least 5 mm (1”) clear of the wall. Your Dutchwest
ST421
hollow wall pass through
6/2/04 djt
18” (450mm)
Empty Space
All Around the
Chimney Con-
nector
Sheet Metal
Cover
(One side
only)
ST41
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
ST91
Fig. 10
Noncombustible hearth surface dimensions.
a) Fireplace recess
b) Free standing
dealer or your local building inspector can provide de-
tails of other approved methods of passing a chimney
connector through a combustible wall.
DO NOT CONNECT THE HEATER TO ANY AIR DIS-
TRIBUTION DUCT OR SYSTEM.
Hearths
This appliance must be installed on to hearth that
meets the requirements of Part J of the Building Regu-
lations 000 (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 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).
