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All materials used in the manufacture of air vents
should be such that the vent is dimensionally stable,
corrosion resistant, and no provision for closure.
The effective free area of any vent should be ascer-
tained before installation. The effect of any grills
should be allowed for when determining the effective
free area of any vent. Air grills should be positioned
so that they are not liable to blockage.
Air vents direct to the outside of the building should
be located so that any air current produced will not
pass through normally occupied areas of the room.
An air vent outside the building should not be locat-
ed less than the dimensions specified within the
Building Regulations and B.S. 8303: Part 1 from any
part of any flue terminal. These air vents must also
be satisfactorily fire proofed as per Building
Regulations and B.S. 8303: Part 1.
Air vents in internal walls should not communicate
with bedrooms, bedsits, toilets, bathrooms or rooms
containing a shower.
Air vents traversing cavity walls should include a
continuous duct across the cavity. The duct should
be installed in such a manner as not to impair the
weather resistance of the cavity.
Joints between air vents and outside walls should be
sealed to prevent the ingress of moisture. Existing
air vents should be of the correct size and unob-
structed for the appliance in use. If there is an
extraction fan fitted in adjacent rooms where this
appliance is fitted, additional air vents may be
required to alleviate the possibility of spillage of
products of combustion from the appliance/flue
while the fan is in operation. Refer to B.S. 8303 Part
1.
Where such an installation exists, a test for spillage
should be made with the fan or fans and other appli-
ances using air in operation at full rate, (i.e.extrac-
tion fans, tumble dryers) with all external doors and
windows closed.
If spillage occurs following the above operation, an
additional air vent of sufficient size to prevent this
occurrence should be installed.
PERMANENT AIR VENT
The stove requires an adequate air supply in order
for it to operate safely and efficiently. The installer
may have fitted a permanent air supply vent into the
room in which the stove is installed to provide com-
bustion and/or ventilation air. This air vent should
not under any circumstances be shut off or sealed.
Extractor Fan
There must not be an extractor fan fitted in the same
room as the stove as this can cause the stove to
emit smoke and fumes into the room.
Outside Air Kit / External Ducted Air (Optional)
An Outside Air Kit is available as an optional extra,
please contact your local dealer for details.
‘HETAS product approval covers this appliance
when installed in accordance with the manufactur-
er’s instructions and relevant standards. As there is
currently no standard for Ducted Combustion Air
Supply this does not fall within the remit for HETAS
product approval. Responsibility for the specification
of this and for appropriate manufacturer’s instruc-
tions is carried by the appliance manufacturer, as
allowed for under the Building Regulations.’
COMMISSIONING & HANDOVER
On completion of the installation allow a suitable
period of time for any fire cement and mortar to dry
out, when a small fire may be lit and checked to
ensure the smoke and fumes are taken from the
stove up the chimney and emitted safely to 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 cus-
tomer on the correct use of the appliance with the
fuels likely to be used on the stove and warn 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 fire guard to BS 6539 in the pres-
ence of children, aged and/or infirm persons.
LOCATION
There are several conditions to be considered in
selecting a location for your stove.
A. This product is designed to be installed into a fire-
place.
B. Allowances for proper clearances to com -
bustibles.
C. Plumbing, gravity circulation to cylinder.