Page
15
of 28
Brightwell 400P
–
July 2022 v1
Pevex Stoves - Brightwell 400P
– Installation & Operating Manual
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
appliances using air in operation at full rate, (i.e.
extraction 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.
Especially Airtight Properties:-
If the stove is being fitted in a property where the
design air permeability is less than 5m
3
/ (h.m
2
)
(normally newer properties built from 2006), then a
permanent ventilation must be fitted to provide
550mm
2
of ventilation for each kW of rated output. If a
draught stabiliser is also fitted then the requirement
is 850mm
2
per kW of rated output.
EXTERNAL DUCTED AIR
An optional outside air kit which will allow for the air
supply for the stove to be ducted from outside and
is available to order for connection to the stove.
It is recommended to bring the air supply for the
stove into the house using a 100mm diameter
plastic pipe. Where the pipe meets the outside wall
make sure a vent cover is fitted properly to ensure
no rodents can enter via the vent pipe.
The vent pipe should be located to prevent the
ingress of moisture and in a location where it will not
get blocked with leaves or any other debris. As wind
effects can create suction and pressure zones of
opposite sides of the dwelling it is recommended to
run the air vent from opposite poles (North, South,
East & West) of the dwelling and tee off for the air
supply to the stove. This should negate the effect
of suction and pressure zones. See Fig.6
‘HETAS product approval covers this appliance
when
installed
in
accordance
with
the
manufacturer’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 instructions is carried by the
appliance manufacturer, as allowed for under the
Building
Regulations.’
Fig.6
100mm
Diametre
Plastic
Pipe
76mm Diametre
Aluminum or
Steel Pipe into
the External Air
Kit
Brightwell
Stove
