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Fitting to Fireplaces with Existing Chairbricks and
Conventional Brick Built
This appliance is suitable for use in fireplaces fitted with an existing
chairbrick without the need for removal of the chairbrick, providing
the minimum depth of the fireplace exceeds 235mm. if depth is less
than 235mm then the chairbrick must be removed. The fireplace
must be checked to ensure that no part of the chairbrick is within
50mm of the outlet of the fire when installed.
Fitting to Pre-Cast Flue Installations
When installing this appliance into pre-cast flues, always
ensure that the spigot restrictor baffle has been removed.
This is held in place on the spigot by 2 screws.
To install the fire box into pre-cast flue starter blocks, there must
be at least 125mm from the mounting face of the fire to the rear of
the pre-cast flue starter block to allow sufficient space for debris
collection. If this dimension is less than 125mm then a fire surround
with a deeper rebate to increase the depth to at least 125mm from
the mounting face of the fire. It is important to consider this depth
when choosing a fire surround as the thickness of the fire surround
must be sufficient to give a total depth of at least 125mm to the
rear of the starter block, otherwise there will be insufficient
depth. To increase this depth the fire surround may be packed away
from the wall using suitable non-combustible board, providing the
installation is correctly sealed. If in doubt about the suitability of the
fire contact Spirit Fires Ltd for advice before proceeding. It is
important to ensure that the pre-cast flue is in good condition and is
free from extruded mortar or sealant from between the flue blocks.
This appliance has been tested for use in a pre-cast flue
block complying with BS EN 1858. In accordance with BS EN
1858, pre-cast flues built with directly plastered faces (front
or rear) are not correctly installed as to ensure proper
operation with any type of gas fire. In some instances of this
flue construction, temperature cracking of surface plaster
may occur through no fault of the appliance. An air gap or
some form of insulation material should be installed to
prevent normal flue temperatures from damaging wall
surfaces.
