Broseley Salisbury Specifications download pdf (Page 6)

spigot. Your installer can supply this. If you obtain this independently, make sure the

adapter is compatible with the flue pipe as not all manufacturers pipes are cross

compatible. A 5” (125mm) flue pipe is sufficient if you are only burning smokeless or

low volatiles fuel but attention must be paid to any build up of deposits in the flue

and regular cleaning undertaken. Fuels such a bituminous coal, untreated wood or

compressed paper are not smokeless or low volatiles fuel.

To get the best transfer of heat from the stove into the room there are two factors to

consider when installing into a fireplace recess.

Firstly, the flue pipe from the stove must pass through either a top or back

‘register plate’. A top register plate is the term used for a flat plate which is

installed inside the chimney (usually out of sight) to prevent heat in the room

being drawn up the chimney to waste when using the top or rear flue outlet. A

back register plate is the term used for a flat plate which is installed over the

opening of the fireplace recess when using the rear flue outlet. This register plate

must be made of a non-combustible material such as steel, asbestolux, or

masterboard. It is advisable to seal this register plate to the walls of the chimney

and also around the flue pipe. Provision of a trap door in this closure plate, or a

soot door in the flue for access to clean the chimney from time to time, is

recommended. When using the rear outlet it is advisable to infill the chimney

space underneath the outlet level to prevent debris falling into the void and being

inaccessible.

Secondly, the more forward the stove can be sited on the hearth, the more heat

will be radiated into the room. To achieve this, the back flue outlet is favoured

but remember the 600mm clearance distance from combustible materials and the

300mm distance to the front of the hearth.

Combustion Air Supply

In order for the stove to perform efficiently and safely there should be an adequate

air supply into the room in which the stove is installed to provide combustion air.

This is particularly necessary in modern houses where drafts have been almost

eliminated by double glazing etc.

There must not be an extractor fan fitted in the same room as the stove as this can

cause the stove to emit fumes into the room. It is necessary to install a wall vent to

provide the necessary combustion air and to prevent the depletion of oxygen in the

room.

The minimum requirement for this stove is a vent giving a total area of 1925 square

millimetres. It is not permissible to ventilate into a room with another burning

appliance. If there is a forced ventilation system in the building check that the

operation of this does not cause fumes from the appliance to enter the building

rather than exit up the flue.

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Broseley Salisbury Specifications Page 6