Operating instructions

Installation Gas pipes

Do not use pipes of a smaller size than the appliance gas

connection. The complete installation must be tested for

soundness and purged.

The following notes are intended to give general

guidance:-

The cross-sectional area of the flue serving the cooker

must not be less than the area of the flue outlet of the

cooker, and at least 3m high from the floor level. If flue

pipe is to be used it must not be less than 100mm internal

diameter.

Flue pipes and fittings should be constructed from one of

the following materials:

(a) Cement

(b) Aluminium or stainless steel

lined

If a chimney is to be used, it preferably should be one that

is composed of, or lined with, a non-porous acid resistant

material. (Chimneys lined with salt glazed earthenware

pipes are acceptable). A flue pipe constructed in (a) to (c),

should form the initial connection to lined chimneys.

Where a chimney is to be used which is not composed of

or lined with a non-porous acid resistant material it should

be lined with a stainless steel flexible flue liner. The

internal diameter of the liner must be not less than 100mm

and the number of joints must be kept to a minimum. If the

flue liner is not to be connected directly to the appliance

draught diverter, a flue pipe which is manufactured from

one of the materials in (a) to (c) should form the

connection between the draught diverter and flue liner.

Before connecting the appliance to or inserting a liner

into, a flue that has been previously used the flue MUST

be thoroughly swept clean of any soot and loose material.

If a register plate, restrictor plate, damper etc. is fitted in

the flue it MUST be removed before connecting the

appliance to, or inserting a liner into the flue.

The flue should terminate in accordance with the relevant

standards in force.

FLUE SYSTEM

GAS SUPPLY

Fig. 1