8
3.0
Site Requirements – Page 8
3.4 Twin Walled Metal Flue Boxes
1. A double walled metal flue system conforming to the
constructional requirements of BS 715 with a minimum
internal flue diameter of 125mm (5in) should be used. The
flue box should be of the Selkirk LFE 125 type or similar.
2
. Remove the restrictor plate from the fire before
fitting to this type of flue (see Fig. 12).
3. The metal flue box must stand on a non-combustible
base of a minimum thickness of 50mm (2 in) and a
separate non-combustible hearth should be supplied with
minimum dimensions as under Hearth Mounting.
4. The metal flue box must be located so that the sides,
top and back surfaces have a minimum air gap clearance
of 50mm from any combustible material.
5. A fitting kit (Baxi Part No.240125) is required to
complete the installation. Further instructions are supplied
with kit.
3.5 Hearth Mounting
1. The fire is intended to be hearth mounted only. The
hearth must be of a non-combustible material at least
13mm ( ½ in) thick and measuring at least 300mm (11
3
/
16
in) deep by 580mm (22
27
/
32
) wide. It must be fitted central
to the fireplace opening. The top surface of the hearth
should be a minimum of 50mm (2 in) above floor level (Fig.
6).
2. On no account should the fire unit be fitted directly onto
a combustible floor or carpet.
3. Alternatively, a fender rail or upstanding edge of 50mm
(2in) height can be fitted to the periphery of the 13mm ( ½
in) non-combustible hearth (Fig. 7).
3.6 Purpose Built Hearths & Surrounds
1. Purpose built superimposed lire resistant hearths and
back panels specified as suitable by the manufacturer may
be used, or a suitable propriety fire surround with 150º C
rating.
Supplied by HeatingSpares247.com
