Hamlet DEFRA User manual

DEFRA Stove Installation and User Guide
DEFRA Stove Installation and User Guide
December 2015
BS EN 13240:2001 +A2:2004 CE
BK575 Rev03

DEFRA Stove Installation and User Guide
Arada Ltd
December 2015
Congratulations on the purchase of your new Arada stove!
More than 30 years of experience has been put into the development of
your stove to ensure ultimate performance and years of trouble free use and
enjoyment. Every detail of your stove has been carefully designed and engineered
which is why we are so condent in the reliability of our products.
Your Arada stove is built to the highest standard of craftsmanship using the
best materials and the most modern equipment available. It is a highly ecient
and sophisticated piece of machinery and when properly installed and operated
it should provide a lifetime of heating satisfaction.
Should you have any questions about your stove which are not covered by this
manual, please contact the Arada retailer in your area, call our technical support
department on [phone] or visit our website www.aradastoves.com
which oers a wealth of information on how to care for, and get the best from
your stove.
Please ensure that you read these instructions in full and understand them
before operating your stove.
Arada has a policy of continuous product development and therefore we
reserve the right to amend specications 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.

DEFRA Stove Installation and User Guide
Contents
1 Warnings 1
1.1 HealthandSafety ........................... 1
2 Installation 2
2.1 HearthsandRecesses......................... 2
2.2 Combustible Materials . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.3 AirforCombustion .......................... 3
2.4 Fitting the ue outlet . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.5 Fireboxlinerpanels .......................... 6
2.6 Fitting the throat plate . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.7 Assembling the grate bars . . . . . . . . . . . . . . . . . . . . . . . 6
3 Flue and Chimneys 8
4 Commissioning the stove 9
5 Before using your stove 10
5.1 Warning - Fume / Smoke emissions . . . . . . . . . . . . . . . . . 12
5.1.1 Refuelling on to a low re bed . . . . . . . . . . . . . . . . 12
6 Advice on fuel types 12
6.1 Wood .................................. 12
6.2 Clean burning of wood . . . . . . . . . . . . . . . . . . . . . . . . . 13
7 Air controls 13
8 Lighting your stove 14
8.1 Ignition Sequence (Lighting from cold) . . . . . . . . . . . . . . . . 14
8.2 Re-fuelling (Normal use after the ignition sequence) . . . . . . . . 16
9 Further information for all stove owners 16
9.1 Doorglass ............................... 16
9.2 Reducedburning............................ 17
9.3 Periods of non-use (summer months) . . . . . . . . . . . . . . . . 17
9.4 Replacementparts........................... 17
9.5 Ashremoval .............................. 18
10 How heat is delivered by your stove 19
10.1 Radiantheat .............................. 19
10.2 Convectedheat ............................ 19
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DEFRA Stove Installation and User Guide
11 Ongoing care for your Arada stove 19
11.1 Adjusting the door hinges . . . . . . . . . . . . . . . . . . . . . . . 20
11.2 Liners/rebricks ........................... 20
11.3 Throatplate .............................. 20
11.4 Firedoorseal.............................. 21
11.5 Crackedglass.............................. 21
12 Further resources / reading 21
13 Guarantee 23
13.1 Guarantee ............................... 23
13.2 Terms and Conditions . . . . . . . . . . . . . . . . . . . . . . . . . 23
13.3 General................................. 25
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DEFRA Stove Installation and User Guide
1 Warnings
Pure Petroleum coke or Bituminous house coal must not be burned in this
appliance. The use of these fuels will invalidate the appliance guarantee.
Arada recommends the use of HETAS approved smokeless fuels which have
been deemed suitable for use on closed appliances, including multi fuel stoves.
If in doubt, contact The Solid Fuel Association, telephone: [phone] / 01773
835400 or visit www.solidfuel.co.uk.
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 qualied heating engineer, aliated
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.
A reguard conforming to BS 8423:2002 should be used in the presence of
children or elderly people. Do not use aerosol sprays or any other ammable
materials near the appliance when in use.
Arada Ltd will not be responsible for any consequential or incidental loss or
injury however caused.
Any manufacturer’s instructions must not be taken as overriding statutory
requirements.
Please Note: Classication of these appliances is for intermittent use.
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.
1.1 Health and Safety
Please consult health and safety guidelines for advice on handling heavy and/or
large items.
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2 Installation
2.1 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.
When installing an inset stove, hearths should have a suciently at 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.
Any voids behind an inset stove should be lled with vermiculite or similar.
The stove should be installed on a non-combustible surface not less then
125mm thick (conforming to Building Regulations unless otherwise specied) of
suitable load bearing capacity and heat resistance. Allowances should be made
for the expansion and contraction of any materials which are tted up to and
near the appliance.
Dimensions of the constructional hearth for all stoves 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 oors, the requirement will be
met by the oor itself, but mark the hearth to ensure oor coverings are kept
well away or use dierent levels to mark the hearth perimeter.
Please be aware that hot air can cause staining above the re in a similar fashion
to walls above radiators. To help prevent this and cracking we recommend that
any plaster above the re should be tted with reinforcing expanding mesh for at
least 220mm above, and the full width of the re. You should also use a suitably
heat resistant plaster which should be allowed sucient time to fully dry before
using the stove or cracking is likely to occur.
2.2 Combustible Materials
Please view the product sheet which accompanied your stove for specic
minimum distances to combustible measurements.
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Ideally, adjacent walls should be of suitable non-combustible construction,
preferably brickwork.
In large replaces take care that any supporting beam is protected by a 13mm
sheet of heat resistant re board spaced 12mm o the surface with strips of
non-combustible material. Make sure that there is a gap between an un-insulated
ue system and any combustible material. This gap must be at least 3X the
outside diameter of the ue pipe, or 1.5X the ue diameter to non combustible
surfaces. Please consult the ue manufacturers specication for insulated ues.
2.3 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 ue 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 rst 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 tted with a draught stabiliser (or if one is tted to
the ue 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.
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 replace recess.
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DEFRA Stove Installation and User Guide
The tting 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 aect 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.
2.4 Fitting the ue outlet
The ue outlet spigot may be tted onto the stove, but will not be fully
tightened.
Figure 1: Fitting the ue outlet for a rear ue conguration.
The ue outlet assembly can be orientated for top or rear ue exit as shown
in gure 1 and 2 on the following page.
The outlet pipe ange is pre tted with a gasket rope seal. Additional re
cement may be added if required.
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DEFRA Stove Installation and User Guide
Figure 2: Fitting the ue outlet for a top ue conguration.
The ue pipe assembly is secured in place with four M5 bolts (supplied). Tighten
bolts diagonally and evenly to ensure full compression of the gasket but do not
over tighten.
Place appliance on the hearth and make sure that it is level and does not rock.
Connect the chimney ensuring all joints are sealed with re cement.
Figure 3: Fitting the ue pipe inside the spigot.
Note : The ue pipe must be tted inside the outlet spigot. Failure to do so
could result in the spillage of condensation running down the ue, (see gure 3)
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2.5 Firebox liner panels
Arada DEFRA stove uses rebox liner panels at both sides of the stove. The
throat plate is not supported by these liners, however the throat plate must be
installed before the liners can be tted, and the liners removed before the throat
plate can be removed.
To remove / tting the liners:
•Open the re door.
•Remove the wood burning tray
•Remove the lower side liners, carefully allowing the upper side liners to slide
down to the landing plate
2.6 Fitting the throat plate
This must be carried out with the wood burning tray and side liners removed.
All images below are cut-away for clarity
•Insert throat plate assembly into the re box and manoeuvre so that the
throat plate drops into the landing plate cut- outs.
•Raise the throat plate assembly vertically out of the landing slots ensuring
the front edge remains behind the front edge of the air wash lip, see g 4
on the following page.
•Hook the throat plate "T" cut-out onto the support hanger and push back
to slide onto the secondary air tube; the wood tray will hold the bottom
edge into the correct position.
2.7 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.
In stoves with a riddling grate system the bars should be seated with every
other bar rotated 180 degrees, so the ends marked ’H’ and ’L’ alternate on each
comb. When assembling the grate, t bars to the low sections of the comb rst
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.
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DEFRA Stove Installation and User Guide
Figure 4: Throat plate support and secondary air pipe.
Figure 5: Bars shown seated on their comb outside the stove.
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.
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DEFRA Stove Installation and User Guide
3 Flue and Chimneys
The stove must be connected to a suitable and ecient ue 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
To ensure a good up draught it is important that the ue gases are kept warm
and that the ue size suits the stove. The termination of the outlet at the top of
the ue also needs to comply with Building Regulations. The minimum eective
height of the ue must be at least 4.5 metres from the top of the stove to the
top of the ue outlet. When warm the ue draught should be between 0.1 to 0.2
mb.
The draw of a chimney / ue can vary in dierent weather conditions and the
customer should be made aware of this.
Failure to correct an over-drawing ue 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 suer 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.
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DEFRA Stove Installation and User Guide
Due to the gradual introduction of European Chimney Standards chimneys will
be specied according to their performance designation as dened in BS EN 1443
that covers the General Requirements for chimneys. The minimum performance
designation required for use with solid fuel burning stoves is T450 N2 S D3.
The ue and chimney installation must be carefully checked by a competent
person before tting 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
ue and chimney are in good operating condition.
Check the existing ue is in good condition with suitable access for collection
and removal of debris.
It is also important that suitable ue pipe (recommended at least 600mm in
length) complying with the Building Regulations is used to connect the stove to the
ue in the chimney. Suitable access should be provided into the ue for regular
inspection and sweeping of the ue ways.
The installer should comply with Building Regulations requirements in respect
of providing a Notice Plate giving details on the chimney, ue lining, hearth and
replace 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.
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 tting of a draught stabiliser in preference to a ue damper, in the interest
of safety and eciency.
4 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
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DEFRA Stove Installation and User Guide
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 ue draught which should read 10 - 20pa, or 0.1 - 0.2 mbar.
Consult a suitably qualied person who will have the knowledge and
equipment to perform a test.
•For a registered competent persons scheme, such as HETAS, please
complete a Certicate of Compliance, which is used for checking and
reporting the installation as imposed by the Government. Otherwise please
ensure the installation is approved by your local building control ocer.
•Ensure a Carbon Monoxide alarm is tted. This must be between 1m to 3m
from the appliance, and approximately 150mm below the ceiling level.
•A reguard conforming to BS 8423:2002 should be used in the presence of
children or inrm people.
•A notice plate should be provided containing information on the
performance characteristics of the hearth, replace, ue 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 eect the performance of the stove.
Using the correct fuels.
5 Before using your stove
Arada stoves are designed to be operated with the re door(s) closed at all
times, apart from refuelling (when alight) or cleaning (when cold).
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Never leave the appliance unattended for an extended length of time with the
door(s) open.
Prior to lighting the stove for the rst time, please check with the installer that:
•Installation and all building work is complete. (Refer to the installation guide.)
•The chimney is sound, has been swept and is free from obstruction.
•Building Regulations and any local by-laws have been followed during
installation.
•All rebox liner panels and throat plate are in place.
•The chimney draw has been checked and is within specication (between
0.1mb to 0.2mb, or 10-20 pascals). This ensures your stove will operate
predictably and eciently.
•A Carbon Monoxide detector is correctly installed in the same room as the
appliance.
Ensure that you have read and understood these instructions before lighting
the re.
Our YouTube channel
www.youtube.com/user/aradastoves features a collection of videos designed to
help you get the best from your Arada stove.
Always wear suitable protective re gloves when refuelling your stove, such as
the Arada glove supplied with your stove.
We recommend that you light a small re for the rst few days of use to cure
the paint and allow the castings to relax. During this process the paint surface
may smoke briey, and you may smell a slight odour for an hour or so. The
vapour is harmless and should not be confused with fume emissions, however, it
is advisable to keep the area well ventilated until the vapour disperses.
You may hear your stove produce clicking or ticking noises whilst it heats up
or cools down. This is completely normal and is produced by the expansion and
contraction of the steel components in your stove when its temperature changes.
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5.1 Warning - Fume / Smoke emissions
Warning: Properly installed, with a suitable ue or chimney,
operated and maintained correctly, this appliance will not emit
fumes into the dwelling.
Occasional fumes when de-ashing and refuelling may occur.
However, persistent fume emission is potentially dangerous and
must be investigated by a HETAS registered installer.
Stop using the appliance if you smell fumes or see smoke
escaping.
If fume emission does persist, the following immediate actions
should be taken:
•Open doors and windows to ventilate room.
•Let the re die or extinguish and safely dispose of fuel from
the appliance.
•Check for ue or chimney blockage, and clean if required.
Seek expert advice from your HETAS registered installer. Do not
attempt to re-light the re until the cause of the fume emission
has been identied and corrected.
5.1.1 Refuelling on to a low re bed
If there is insucient burning material in the rebed to light a new fuel charge,
excessive smoke emission can occur. Refuelling must be carried out onto a
sucient quantity of glowing embers and ash that the new fuel charge will ignite
in a reasonable period. If there are too few embers in the re bed, add suitable
kindling to prevent excessive smoke
6 Advice on fuel types
6.1 Wood
As a natural and renewable fuel, wood is the rst choice for burning, however
burning wood requires a little eort and planning.
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Any type of wood is suitable (though hardwood is preferable) provided it is
well seasoned and has a moisture content below 20%. This usually implies that
the timber has been suitably stored to allow moisture to evaporate for at least
9 months in the case of soft wood, and at least 24 months in the case of hard
wood. We recommend that for general burning, wood should be split into logs of
no more than 100mm (4 inches) diameter.
If, when burning wood, you see signs of sticky tar inside the appliance or
chimney, your wood is ‘green’or too wet and requires further seasoning. An
electronic moisture meter can be obtained in order to determine the moisture
content of your wood fuel.
Paper will burn successfully. Burn dry paper only or chimney damage will occur.
Wet wood must not be used as this will greatly contribute to the
creation of tar and creosote which may, in extreme cases, run
down the chimney in liquid form. This will seriously damage both
the chimney and the appliance and increase the risk of a chimney
re.
6.2 Clean burning of wood
In order to burn wood cleanly, in accordance with the DEFRA exception
certicate applicable to this stove, it is important that the Ignition and Re-fuelling
instructions are followed carefully.
7 Air controls
Our DEFRA stoves have one air inlet control for easy operation.
The air inlet provides air through the base of the stove, via the control slider
located under the base of the door.
The air passes from the base of the stove, through a sealed airway, around the
back and top of the re box providing a very hot air ow over the re bed.
Secondary air also enters the re box through a pre-set bleed at the rear of
the stove, and is heated and distributed through the throat plate arrangement.
The air control is fully adjustable but has two main settings in normal use.
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Figure 6: The ow of air through your stove.
8 Lighting your stove
8.1 Ignition Sequence (Lighting from cold)
Place a relighter and a large handful (0.5-0.6 kg) of dry kindling in the stove.
With the air control set to maximum (fully to the left) light the relighter and push
the door up to a point where it is 10mm ajar.
After 8-10mins the kindling will die down, now add four small split logs (approx
0.75kg in total) once again leaving the door ajar 10mm and the air control still at
maximum. Once these small logs are well alight, and with the burn starting to
slightly recede (depending on ue draw etc. this may be up to 20 mins) add the
normal fuel load (approximately 1.3kg or two small logs). After approximately 3
minutes shut the door fully but leave the air control set to maximum. When the
logs have burnt down to embers the Ignition Sequence is complete and re-fuelling
for normal use can commence.
The purpose of these ignition instructions (lighting from cold) is to ensure that
both the stove and chimney are heated to full running temperature as quickly as
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Figure 7: Air control positions.
possible so avoid smoke emissions during subsequent re-fuelling.
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8.2 Re-fuelling (Normal use after the ignition sequence)
When the stove requires re-fuelling (i.e. the previous fuel load has died down
to a glowing ember bed), add two small logs with a total weight of approximately
1.3kg. Leave the door ajar 10mm and set the air control to maximum. After 3
minutes close the door fully but leave the air control to maximum. After a further
1 minute the air control may be moved to the desired running position (to the
right). This procedure should be followed on any subsequent re-fuelling.
Important Information
When rst lighting the stove always follow the lighting sequence above to heat
the stove and ue/chimney as quickly as possible, never over load the rebox.
Always re-fuel onto a hot bed of glowing embers. Always ensure the re is well
alight after re-fuelling before leaving the stove unattended.
The average fuel load of the stove is 1.3kg per hour of dry well seasoned
hardwood providing approximately 4.5kWh of heat with the air control set fully to
the right stop.
In order to avoid overloading the rebox it is recommended that a fuel load no
greater than 1.5 kg is used during re-fuelling.
The recommended log size is approximately 250mm long and 90-100mm in
diameter, of which two would normally constitute one full load for 1 hour burning
at 4.5kw output.
Please Note: The high temperature paint requires durability by being cured
during the initial rings of the appliance. It will give o fumes which are non toxic,
but certain persons may nd they have an unpleasant or irritant eect. Ensure
that the surrounding area is well ventilated during this time.
9 Further information for all stove owners
9.1 Door glass
The door glass should remain clear during normal burning. However under
certain conditions, such as burning at a low rate, using damp wood or overnight
burning, the glass may become somewhat blackened. To remedy this, operate
the appliance at a fast rate. Alternatively when the stove is cold, open the door
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