Arada Cassette Stove User manual

Cassette Stove Installation Guide
Cassette Stove Installation Guide
June 2014
EN 13229:2001 CE
BK605 Rev01

Cassette Stove Installation Guide
Arada Ltd
June 2014
Please carefully read through the entirety of this installation
guide before commencing installation. Should you have any
questions about our stoves that are not covered in this manual,
please contact the Arada retailer in your area, or call our
technical support department on 44 (0)1297 35998. You should
retain these instructions for future reference.
Arada has a policy of continuous product development and
therefore we reserve the right to amend specifications without
prior notice. Due to printing cycles, items or options may be
described before they are generally available or after they have
ceased. Please check with your retailer or dealer if you are
unsure about any aspect of your stove, its installation or correct
use.

Cassette Stove Installation Guide
Contents
1 Warnings 1
2 Health and Safety 1
3 Installation Requirements 2
3.1 Hearths and Recesses . . . . . . . . . . . . . . . . . . 2
3.2 Combustible Materials . . . . . . . . . . . . . . . . . . 3
3.3 Air for Combustion . . . . . . . . . . . . . . . . . . . . 4
4 Flue and Chimneys 5
5 Installing the Stove 8
5.1 Removing the door. . . . . . . . . . . . . . . . . . . . 8
5.2 Removing the throat plate and liners . . . . . . . . . 8
5.3 Assembling the grate bars . . . . . . . . . . . . . . . 9
5.4 Fitting the spigot outlet to the stove . . . . . . . . . . 10
5.5 Connecting the spigot outlet to the flue system . . 10
5.6 Sealing the stove to the fire surround . . . . . . . . . 11
5.7 Fitting the frame . . . . . . . . . . . . . . . . . . . . . 11
6 Commissioning the stove 11
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1 Warnings
It is a legal requirement that the installation of all new or
replacement, wood or solid fuel heating appliances obtain
Building Control approval from your local authority. This can
be done by using a qualified heating engineer, affiliated to
a government approved competent persons scheme such as
operated by HETAS.
If in doubt, contact HETAS Limited, telephone: [phone] or
visit www.hetas.co.uk. You can also consult your local buildings
inspector / controller.
All local regulations, including those referring to National and
European standards, need to be complied with when installing
the appliance.
This stove should not be installed into a chimney that serves
any other heating appliance.
Any manufacturer's instructions must not be taken as
overriding statutory requirements.
Arada Ltd will not be responsible for any consequential or
incidental loss or injury however caused.
Any further warnings in this document will be
marked out in a box such as this one. Ignoring the
warnings could lead to damage/injury to persons
and/or property.
2 Health and Safety
Before any installation work is undertaken consideration must
be given to the Health and Safety at Work Act 1974. Safe
working practices should be followed at all times.
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Please consult health and safety guidelines for advice on
handling heavy and/or large items.
During installation ensure that adequate precautions are
taken to avoid unnecessary risk to yourself or any householder.
The danger from the caustic nature of fire cement, should be
avoided by using these accepted methods: Wear gloves when
handling fire cement. Wear goggles when chiseling or looking
up chimneys.
This stove contains no asbestos. If there is a possibility of
disturbing any asbestos in the course of the installation then
please seek specialist guidance and use appropriate protective
equipment.
3 Installation Requirements
3.1 Hearths and Recesses
The stove should be installed on a surface with adequate load
bearing capacity. If the existing construction does not meet
this prerequisite, suitable measures (e.g. load distributing plate)
should be taken to achieve it. Please pay particular attention
when examining existing building work for suitability to meet the
following requirements.
Hearths and recesses for Cassette stoves should have a
sufficiently flat surface to allow a good seal to the stove body to
be created during its installation. Stonework, uneven bricks etc.
may need further work to ensure that this can be achieved.
Cassette stoves should be installed into a recess on a
non-combustible surface not less then 125mm thick (conforming
to Building Regulations) of suitable load bearing capacity.
Allowances should be made for the expansion and contraction
of materials which are fitted up to and near the appliance.
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Dimensions of the constructional hearth for all stoves
(including any 'hole in the wall’ type installation) should
project at least 500mm forward of the front of the appliance
and 150mm at the sides. The surface of the hearth should be
free of combustible materials. The superimposed hearth for all
installations should project at least 225mm forward from the
front of the appliance and 150mm either side of the edge of
the appliance.
In most buildings with solid concrete or stone floors, the
requirement will be met by the floor itself, but mark the hearth to
ensure floor coverings are kept well away or use different levels
to mark the hearth perimeter.
Please be aware that hot air can cause staining above the
fire in a similar fashion to walls above radiators. To help prevent
this and cracking we recommend that plastering above the fire
should be fitted with reinforcing expanding mesh for at least
220mm above, and the full width of the fire. You should also
use a suitably heat resistant plaster.
When installing the stove into a recess it is important that the
front outer jacket edges sit 5mm proud of the wall surface to
enable the trims to clip onto the fire.
3.2 Combustible Materials
Please view the product sheet which accompanied
your stove for specific minimum distances to combustible
measurements.
Ideally, adjacent walls should be of suitable non-combustible
construction, preferably brickwork.
In large fireplaces take care that any supporting beam is
protected by a 13mm sheet of heat resistant fire board spaced
12mm off the surface with strips of non-combustible material.
Make sure that there is a gap between an un-insulated flue
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system and any combustible material. This gap must be at
least 3X the outside diameter of the flue pipe, or 1.5X the flue
diameter to non combustible surfaces. Please consult the flue
manufacturers specification for insulated flues.
3.3 Air for Combustion
All stoves require ventilation to burn safely and correctly.
There are a number of requirements that need to be met when
installing a stove, for example, allowing for the permeability of
the house (air permeability is the general seepage of air into the
house via air vents, doors and windows etc.)
There must always be a permanent means of providing air
for combustion into the room in which the stove is installed. Air
starvation will result in poor flue draw and may cause smoke to
leak into the room.
For all installations it is recommended that a permanent vent
with a total free area of at least 550mm2for every kW above 5kW
should be connected directly to the outside air. Installations in
properties built after 2008 should have their vent increased by a
further 330mm2for each of the the first 5kW. Alternatively this air
can be supplied through an external wall of an adjacent room,
which itself has to be connected to the room the appliance is
installed by a permanent vent of the same size.
Note: If the appliance is fitted with a draught stabiliser (or if
one is fitted to the flue pipe or chimney in the same room as the
appliance) then the permanent air entry opening (or openings)
should be increased by 300mm2for each kW of rated output up
to 5kW and an additional 850mm2for each kW output over 5kW.
If there is more than one appliance in the property then each
appliance must be supplied with adequate combustion air so
that all appliances can be lit simultaneously.
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The positioning of any air vent must be so that it cannot
be liable to blockage or obstruction. Ideally it should also be
positioned where it is unlikely to cause a cold draught. It should
not be positioned in the fireplace recess.
The fitting of an extractor fan in the same room as
the stove, or an adjacent room is not permitted.
A spillage test will be required to determine how
any extractor fans may affect the required size of
ventilation requirements.
For more detailed guidelines on required ventilation sizes
please refer to the HETAS Guide which can be found on the
HETAS website.
If you plan to use an external air supply on a suitable stove,
and have bought the appropriate Arada External Air Supply Kit,
please refer to the instructions included with the kit on how to
install it.
The accompanying stove technical product sheet states
whether or not your appliance is compatible with a Direct Air
Supply Kit.
4 Flue and Chimneys
The stove must be connected to a suitable and efficient flue so
that products of combustion (fumes) from the stove are expelled
to the outside air. Please remember that chimney draught is
dependent on four main factors :
•Flue gas temperature
•Flue height
•Flue size
•Flue terminal
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To ensure a good up draught it is important that the flue
gases are kept warm and that the flue size suits the stove. The
termination of the outlet at the top of the flue also needs to
comply with Building Regulations. The minimum effective height
of the flue must be at least 4.5 metres from the top of the stove
to the top of the flue outlet. When warm the flue draught should
be between 0.1 to 0.2 mb.
The draw of a chimney / flue can vary in different weather
conditions and the customer should be made aware of this.
Failure to correct an over-drawing flue will invalidate the
warranty.
A chimney may comply with regulations but could still be
subject to down draught and similar problems. A chimney
terminating above the ridge level is generally less likely to suffer
such problems.
If a new chimney is being provided it should fully comply with
the relevant Building Regulations that specify the requirements
for solid fuel burning installations. Suitable types of chimney
include the following :
•Masonry Chimney : Built with clay or concrete liners, or a
chimney block system meeting Building Regulations. These
types of chimneys should be installed in accordance with
the Building Regulations and BS EN 15287-1:2007.
•Factory Made Insulated Chimney : Complying with BS
4543:Part 2 (often called Class 1 prefabricated metal
chimney). These types of chimneys should be installed
in accordance with Building Regulations and BS EN
15287-1:2007.
Due to the gradual introduction of European Chimney
Standards chimneys will be specified according to their
performance designation as defined in BS EN 1443 that
covers the General Requirements for chimneys. The minimum
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performance designation required for use with solid fuel burning
stoves is T450 N2 S D3.
The flue and chimney installation must be carefully checked
by a competent person before fitting the stove to ensure it is
suitable and will work safely.
If the chimney is old (i.e: built of brick or stone without a liner) or
being opened up for reuse additional checks and smoke testing
as described in Appendix E of the Approved Document J 2010
Edition should also be carried out to ensure the flue and chimney
are in good operating condition.
Check the existing flue is in good condition with suitable
access for collection and removal of debris.
It is also important that suitable flue pipe (recommended at
least 600mm in length) complying with the Building Regulations
is used to connect the stove to the flue in the chimney. Suitable
access should be provided into the flue for regular inspection
and sweeping of the flue ways.
The installer should comply with Building Regulations
requirements in respect of providing a Notice Plate giving
details on the chimney, flue lining, hearth and fireplace
installation.
Chimneys should be as straight as possible. Horizontal
runs should be avoided except where the rear outlet of the
appliance is used, in which case the horizontal section should
not exceed 150mm in length. If necessary a combination of 45°
and 90° bends can be used as long as the sum of their angles is
not greater then 180° in total. i.e four 45° bends, or two 45° and
a 90° bend.
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If the stove appears to be working hard but produces very
little output to the room it is likely that excess draw is present in
the chimney, and that heat is being sucked out of the appliance
and up the chimney. If this is the case we recommend the fitting
of a draught stabiliser in preference to a flue damper, in the
interest of safety and efficiency.
5 Installing the Stove
To make the stove easier to manoeuvre (thus safer) we
recommend you remove the following parts which can then be
refitted when the stove is in its final position:
•Grate Bars
•Liners
•Door (To help prevent the glass from breaking)
•Operating Tool
•Ash pan
•Throat Plate
5.1 Removing the door.
Open the door so that it’s perpendicular to the stove body
and then carefully lift the stove door upwards of its hinges. To
replace the door reverse the instructions above.
5.2 Removing the throat plate and liners
The throat plate rests on both the side liners and tertiary air bar
at the rear of the firebox.
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With the fire door removed or open push up on the throat
plate with the palm of one hand. With the other, remove the
side liners and then lower the throat plate forward. It is easier to
lower one side of the throat plate first to help remove it from its
position and to allow it to fit through the opening of the stove.
Once the throat plate has been removed you can also remove
the rear liner(s).
To replace the liners/throat plate follow the steps above in
reverse.
5.3 Assembling the grate bars
In a multi fuel stove the grate comprises of a series of cast iron
grate bars, seated on a pair of combs. All bars in the grate are
identical.
Figure1: Flexfuel Grate Bars shown seated on their comb outside
the stove.
In stoves with a riddling grate system the bars should be seated
with every other bar rotated 180 degrees, so the ends marked
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'H' and 'L' alternate on each comb. When assembling the grate,
fit bars to the low sections of the comb first by seating the ends
marked 'L' onto the low part of the comb, whilst the ends marked
'H' should then be seated on the high sections.
In stoves with non-riddling grate systems the grate is
assembled with the ends of the bars marked 'H' sitting on the
front comb, and the ends marked 'L' sitting on the rear comb.
5.4 Fitting the spigot outlet to the stove
Please refer to the separate sheet (included) which details the
installation of the spigot to the stove body.
5.5 Connecting the spigot outlet to the flue system
Figure2: Fitting the flue pipe inside the spigot collar.
The flue pipe must be fitted inside the outlet spigot as shown
in Figure 2. Failure to do so could result in the spillage of
condensation running down the flue.
Fire cement should be used to create an airtight seal between
the flue and spigot.
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5.6 Sealing the stove to the fire surround
In order for the stove to operate correctly and at maximum
efficiency it is necessary to achieve a good seal between the
back face of the stove convector section, the stove back base
sections and the decorative fire surround and recess.
This should be achieved using fire cement. Any void
surrounding an inset stove when installed should be filled with
fire cement in the interest of safety and efficiency.
5.7 Fitting the frame
Please refer to the instructions included with the frame for
information on how to fit them.
6 Commissioning the stove
Before handing over the installation to the customer it is a
requirement under Document J (of the Building Regulations for
England and Wales) that the appliance is lit and the functioning
of the chimney system is checked for satisfactory operation.
•Be sure that the chimney is operating and all smoke and
fumes are vented to the atmosphere through the chimney
terminal.
•Check all joints and seals.
•Clean the outside of the cold appliance with a lint free
cloth or shoe brush to prevent any stains becoming burnt
on.
•Check the flue draught which should read 10 - 20pa, or
0.1 - 0.2 mbar. Consult a suitably qualified person who will
have the knowledge and equipment to perform a test.
•For a registered competent persons scheme, such as
HETAS, please complete a Certificate of Compliance,
which is used for checking and reporting the installation
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as imposed by the Government. Otherwise please ensure
the installation is approved by your local building control
officer.
•Ensure a Carbon Monoxide alarm is fitted. This must be
between 1m to 3m from the appliance, and approximately
150mm below the ceiling level.
•A fireguard conforming to BS 8423:2002 should be used in
the presence of children or infirm people.
•A notice plate should be provided containing information
on the performance characteristics of the hearth,
fireplace, flue or chimney.
•Explain the following to the customer:
How to operate the riddling mechanism and air control
lever.
The importance of an adequate air supply to the room.
The importance of regularly having the chimney swept
/ inspected.
That a protective glove should be used when
operating the stove.
How changes in the weather can effect the
performance of the stove.
Using the correct fuels.
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Manual last updated: June 2014
© Arada Ltd 2014
T: [phone]
[email protected] - www.aradastoves.com
Arada Ltd - Weycroft Avenue - Axminster - Devon - EX13 5HU
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