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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 if the room is double-glazed or a flue draught
stabiliser is operating in the same room as the appliance. The provision of air supply to the stove must be in accordance with
current Building Regulations Approved Document J. An opening window is not appropriate for this purpose. Air inlets must
be positioned in such a way that they cannot be blocked. An air inlet may be a vent (the vent must be open and the capacity
for the vent sufficient when the stove is lit) .
There are no European rules regarding the minimum distance to non-flammable walls, Mendip Stoves recommend leaving
a gap of at least 100mm behind and to sides of stove.
Christon models take all combustion air from a single 80mm port at the rear of the stove, with the door closed the air port
supplies all combustion air for the appliance. This can be connected to the outside via a 80mm pipe so the appliance does
not draw air from the room. However Mendip stoves still recommends the use of an air brick as laid out in document j for
when the stove is being reloaded.
T
he hearth should be able to accommodate the weight of the stove and its chimney if the chimney is not independently
supported. The Christon 400 inset stove has been tested and are suitable to be installed on a 12 mm non combustible plate
such as 12 mm glass plates . Installation of all hearths should comply in size and construction so that it is in accordance with
the provisions of the current Building Regulations Approved Document J.
The clearance distances to combustible material beneath, surrounding or on the hearth and walls adjacent to the hearth
should comply with the guidance on the separation of combustible material given in Building Regulations Approved Document
J and also in these stove instructions.
If the stove is to be installed on a wooden floor, it must be covered with a non-combustible material at least 12 mm thick,
in accordance with Building Regulations Approved Document J, to a distance of 30 cm in front of the stove and 15 cm to
each side measuring from the door of the combustion chamber.
HEARTH
COMBUSTION AIR
COMBUSTION CHAMBERS
Mendip Stoves are fitted internally with vermiculite heat deflection panels and baffles, these panels are designed to ensure
the maximum efficiency and are an integral part of the clean burn process of the stove. These baffles should not be removed
other than for cleaning the stove. Any defective panels should be replaced, small hairline cracks do need replacement and
can develop during long term use. When refuelling your stove place wood fuel into the chamber, impact from logs can
cause the heat deflection panel to crack
.
Connection to chimney
Mendip Christon is built with a top flue outlet only, this can be altered from vertical to a 30 degrees connection by
removing the top collar and rotating the collar 180 degrees,. Care should be taken to ensure an airtight fit when refitting
collar and plate.This collar allows connection to either a masonry chimney or a prefabricated factory made insulated
metal chimney.
COMMISSIONING AND HANDOVER
Ensure loose parts ( brick and grates) are fitted in accordance with the instructions given in the instruction booklet. On
completion of the installation allow a suitable period of time for any fire cement and mortar to dry out, a small fire may be
lit to check that smoke and fumes are taken from the stove up the chimney and emitted safely into the atmosphere. Do not
run at full output for at least 24 hours.
On completion of the installation and commissioning ensure that the operating instructions for the stove are left with the
customer. Ensure to advise the customer on the correct use of the appliance with the fuels likely to be used in the stove and
notify them to use only the recommended fuels for the stove. Advise the user what to do should smoke or fumes be emitted
from the stove.
The customer should be warned to use a fireguard to BS 8423:2002 in the presence of children, aged and/or infirm persons.
