Contura C 780 User manual

USER MANUAL FOR STOVES WITHOUT BOILERS

SUPPLEMENTARY INSTALLATION INSTRUCTIONS FOR THE UK MARKET

TO BE READ IN CONJUNCTION WITH THOSE IN THE INSTRUCTION BOOKLET

READ THE INSTRUCTION BOOKLET AND THESE SUPPLEMENTARY INSTRUC-

TIONS CAREFULLY BEFORE INSTALLATION

These instructions together with those in the instruction booklet cover the basic principles to ensure the

satisfactory installation of the stove, although detail may need slight modification to suit particular local site

conditions.

In all cases the installation must comply with current Building Regulations, Local Authority Byelaws and other

specifications or regulations as they affect the installation of the stove.

It should be noted that the Building Regulations requirements may be met by adopting the relevant recom-

mendations given in British Standards BS 8303, BS EN 15287-1:2007 as an alternative means to achieve an

equivalent level of performance to that obtained following the guidance given in Approved Document J.

Should any conflict apply between these instructions and the original manufacturers instructions then the

most stringent advice must apply.

Please note that it is a legal requirement under England and Wales Building Regulations that the installation

of the stove is either carried out under Local Authority Building Control approval or is installed by a Competent

Person registered with a Government approved Competent Persons Scheme. HETAS Ltd operate such a Scheme

and a listing of their Registered Competent Persons can be found on their website at www.hetas.co.uk.

CO Alarms:-

Building regulations require that when ever a new or replacement fixed solid fuel or wood/biomass appliance is

installed in a dwelling a carbon monoxide alarm must be fitted in the same room as the appliance. Further gui-

dance on the installation of the carbon monoxide alarm is available in BS EN 50292:2002 and from the alarm

manufacturer’s instructions. Provision of an alarm must not be considered a substitute for either installing

the appliance correctly or ensuring regular servicing and maintenance of the appliance and chimney system.

811142 BAV GB-7 March 2014

HEALTH AND SAFETY PRECAUTIONS

Special care must be taken when installing the stove such that the requirements of the Health and Safety at Work

Act are met.

Handling

Adequate facilities must be available for loading, unloading and site handling.

Fire Cement

Some types of fire cement are caustic and should not be allowed to come into contact with the skin. In case of

contact wash immediately with plenty of water.

Asbestos

This stove contains no asbestos. If there is a possibility of disturbing any asbestos in the course of installation then

please seek specialist guidance and use appropriate protective equipment.

Metal Parts

When installing or servicing this stove care should be taken to avoid the possibility of personal injury.

STOVE PERFORMANCE

Refer to the manufacturer’s main instruction manual for details of the stove’s performance.

PREPARATORY WORK AND SAFETY CHECKS

IMPORTANT WARNING

This stove must not be installed into a chimney that serves any other heating appliance.

There must not be an extractor fan fitted in the same room as the stove as this can cause the stove to emit fumes

into the room.

811142 BAV GB-7 March 2014

Chimney

In order for the stove to perform satisfactorily the chimney height must be sufficient to ensure an adequate

draught of approximately 15 Pa so as to clear the products of combustion and prevent smoke problems into the

room.

NOTE: A chimney height of not less than 4.5 metres measured vertically from the outlet of the stove to the top of

the chimney should be satisfactory. Alternatively the calculation procedure given in EN 13384-1 may be used as the

basis for deciding whether a particular chimney design will provide sufficient draught. BS EN 15287-1:2007 gives

additional details.

The outlet from the chimney should be above the roof of the building in accordance with the provisions of Building

Regulations Approved Document J.

If installation is into an existing chimney then it must be sound and have no cracks or other faults which might allow

fumes into the house. Older properties, especially, may have chimney faults or the cross section may be too large

i.e. more than 230 mm x 230 mm. Remedial action should be taken, if required, seeking expert advice, if necessary.

If it is found necessary to line the chimney then a flue liner suitable for solid fuel must be used in accordance with

Building Regulations Approved Document J.

Any existing chimney must be clear of obstruction and have been swept clean immediately before installation of the

stove. If the stove is fitted in place of an open fire then the chimney should be swept one month after installation to

clear any soot falls which may have occurred due to the difference in combustion between the stove and the open

fire.

If there is no existing chimney then any new system must be to the designation described above and in accordance

with Building Regulations Approved Document J.

A single wall metal fluepipe is suitable for connecting the stove to the chimney but is not suitable for use as the com-

plete chimney. The chimney and connecting fluepipe must have a minimum diameter of 150 mm and its dimension

should be not less than the size of the outlet socket of the stove.

Any bend in the chimney or connecting fluepipe should not exceed 45°. 90° bends should not be used.

811142 BAV GB-7 March 2014

Combustible material should not be located where the heat dissipating through the walls of fireplaces or flues could

ignite it. Therefore when installing the stove in the presence of combustible materials due account must be taken of

the guidance on the separation of combustible material given in Building Regulations Approved Document J and also

in these stove instructions.

If it is found that there is excessive draught in the chimney then a draught stabiliser should be fitted. Fitting of a

draught stabiliser will affect the requirement for the permanent air supply into the room in which the stove is fitted

in accordance with Approved Document J (see also combustion air supply).

Adequate provision e.g. easily accessible soot door or doors must be provided for sweeping the chimney and con-

necting fluepipe where it is not intended for the chimney to be swept through the appliance.

Hearth

The hearth should be level and able to accommodate the weight of the stove and its chimney if the chimney is not

independently supported. The weight of the stove is indicated in the brochure.

The stove should preferably be installed on a non-combustible hearth of a size and construction that is in accor-

dance with the provisions of the current Building Regulations Approved Document J.

The clearance distances to combustible material beneath, surrounding or upon 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 combustible floor surface, it must be covered with a non-combustible material at

least 12mm 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.

811142 BAV GB-7 March 2014

Combustion air supply

In order for the stove to perform efficiently and safely there must be an adequate air supply into the room in which

the stove is installed to provide combustion air. The provision of air supply to the stove must be in accordance with

current Building Regulations Approved Document J. Special attention should be taken in newer build properties

where the design air permeability is less than 5m3/h.m2. Approved Document J gives more information on this. An

opening window is not appropriate for this purpose.

The fitting of an external air kit direct to outside air must not be considered substitute for installing the appli-

ance with a permanently open air vent in compliance with ventilation requirements stated in Approved Document

J. Please reference ADJ for further guidance.

Connection to chimney

Stoves may have a choice of either a rear or top flue gas connector that allows connection to either a masonry chim-

ney or a prefabricated factory made insulated metal chimney in accordance with their instructions. In some cases

it may be necessary to fit an adaptor to increase the diameter of the flue to the minimum required 150 mm section

of the chimney or liner. All joints in the connection between the stove and the chimney must be made gastight using

fire cement and where necessary fire-proof rope infill. Means should be made for sweeping the entire length of the

flue, be that through the appliance or by suitable sweeping hatch in the flue.

Commissioning and handover

Ensure all parts are fitted in accordance with the instructions.

On completion of the installation allow a suitable period of time for any fire cement and mortar to dry out, before

lighting the stove. Once the stove is under fire check all seals for soundness and check that the flue is functioning

correctly and that all products of combustion are vented safely to atmosphere via the chimney terminal.

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 and warn them to use only the

recommended fuel 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 (Replaces BS 6539) in the presence of children, aged and/or infirm persons.

811142 BAV GB-7 March 2014

HETAS Ltd Approval;

These appliances have been approved by HETAS Ltd as an intermittent operating appliance for burning wood logs

only.

WARNING NOTE

Properly installed, operated and maintained this stove will not emit fumes into the dwelling. Occasional fumes from

de ashing and re fuelling may occur. However, persistent fume emission is potentially dangerous and must not be

tolerated. If fume emission does persist, then the following immediate action should be taken:

(a) Open doors and windows to ventilate the room and then leave the premises.

(b) Let the fire go out.

(d) Do not attempt to relight the fire until the cause of the fume emission has been identified and corrected.

If necessary seek expert advice.

The most common cause of fume emission is flueway or chimney blockage. For your own safety these must be kept

clean at all times.

IMPORTANT NOTES

General

Before lighting the stove check with the installer that the installation work and commissioning checks described

above have been carried out correctly and that the chimney has been swept clean, is sound and free from any

obstructions. As part of the stoves’ commissioning and handover the installer should have shown you how to operate

the stove correctly.

811142 BAV GB-7 March 2014

CO Alarm

Your installer should have fitted a CO alarm in the same room as the appliance. If the alarm sounds unexpectedly,

follow the instructions given under “Warning Note” above.

Air Controls

Manually operated air control can be managed by adjusting the air control valve to increase/decrease the air flow to

the stove.

Use of ﬁreguard

When using the stove in situations where children, aged and/or infirm persons are present a fireguard must be

used to prevent accidental contact with the stove. The fireguard should be manufactured in accordance with BS

8423:2002.

Chimney cleaning

The chimney should be swept at least twice a year. It is important that the flue connection and chimney are swept

prior to lighting up after a prolonged shutdown period.

If the stove is fitted in place of an open fire then the chimney will require sweeping after a month of continuous

operation. This is a precaution to ensure that any “softer” deposits left from the open fire usage have not been

loosened by the higher flue temperatures generated by the closed stove.

In situations where it is not possible to sweep through the stove the installer will have provided alternative means,

such as a soot door. After sweeping the chimney the stove flue outlet and the flue pipe connecting the stove to the

chimney must be cleaned with a flue brush.

Periods of Prolonged Non-Use

If the stove is to be left unused for a prolonged period of time then it should be given a thorough clean to remove

ash and unburned fuel residues. To enable a good flow of air through the appliance to reduce condensation and

subsequent damage, leave the air controls fully open.

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.

811142 BAV GB-7 March 2014

Aerosol sprays

Do not use an aerosol spray on or near the stove when it is alight.

Use of operating tools

Always use the operating tools provided when handling parts likely to be hot when the stove is in use.

Chimney Fires

If the chimney is thoroughly and regularly swept, chimney fires should not occur. However, if a chimney fire does oc-

cur turn off the stove immediately and isolate the mains electricity supply (if applicable), and tightly close the doors

of the stove. This should cause the chimney fire to go out. If the chimney fire does not go out when the above action

is taken then the fire brigade should be called immediately. Do not relight the stove until the chimney and flueway

have been cleaned and examined by a professional.

Permanent air vent

The stove requires a permanent and adequate air supply in order for it to operate safely and efficiently.

In accordance with current Building Regulations the installer may have fitted a permanent air supply vent into the

room in which the stove is installed to provide combustion air. This air vent should not under any circumstances be

shut off or sealed.

USER OPERATING INSTRUCTIONS

Please read the important notices given above before referring to the main instruction book for detailed operating

instructions.

Recommended fuels:

Please note that HETAS Ltd Appliance Approval only covers the use of wood logs on this appliance. HETAS Ltd Appro-

val does not cover the use of other fuels either alone or mixed with the recommended fuels listed above, nor does it

cover instructions for the use of other fuels. The stoves have a refuelling interval of 0.75h to achieve the nominal

rated output. Wood logs should be seasoned with a moisture content of around 20%.

811142 BAV GB-7 March 2014

Refuelling on to a low ﬁre bed:

If there is insufficient burning material in the firebed to light a new fuel charge, excessive smoke emission can

occur. Refuelling must be carried out onto a sufficient 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 fire bed, add suitable kindling to prevent exces-

sive smoke.

Fuel overloading:

The maximum amount of fuel specified in this manual should not be exceeded, overloading can cause excess smoke.

Operation with door left open:

Operation with the door open can cause excess smoke. The appliance must not be operated with the appliance door

left open except as directed in the instructions.

THE CLEAN AIR ACT 1993 AND SMOKE CONTROL AREAS

Under the Clean Air Act local authorities may declare the whole or part of the district of the authority to be a smoke

control area. It is an offence to emit smoke from a chimney of a building, from a furnace or from any fixed boiler if

located in a designated smoke control area. It is also an offence to acquire an ”unauthorised fuel” for use within a

smoke control area unless it is used in an ”exempt” appliance (”exempted” from the controls which generally apply in

the smoke control area).

The Secretary of State for Environment, Food and Rural Affairs has powers under the Act to authorise smokeless

fuels or exempt appliances for use in smoke control areas in England. In Scotland and Wales this power rests with

Ministers in the devolved administrations for those countries. Separate legislation, the Clean Air (Northern Ireland)

Order 1981, applies in Northern Ireland. Therefore it is a requirement that fuels burnt or obtained for use in smoke

control areas have been ”authorised” in Regulations and that appliances used to burn solid fuel in those areas (other

than ”authorised” fuels) have been exempted by an Order made and signed by the Secretary of State or Minister in

the devolved administrations.

Further information on the requirements of the Clean Air Act can be found here : http://smokecontrol.defra.gov.uk/

Your local authority is responsible for implementing the Clean Air Act 1993 including designation and supervision of

smoke control areas and you can contact them for details of Clean Air Act requirements

811142 BAV GB-7 March 2014

Appliance Exemption:

The Contura 500, 700, i4, i5, i30 and i40 series are recommended as exempt appliances under the Clean Air Act

1993 when burning dry seasoned wood logs in accordance with the instructions and when fitted with the permanent

stops detailed below:

The Contura 500 series must be fitted with a mechanical stop to prevent closure of the air control vent beyond the

20% open position when sold into smoke control areas.

The Contura 700 series must be fitted with a mechanical stop to prevent closure of the air control vent beyond the

28% open position when sold into smoke control areas.

The Contura i4 series must be fitted with a mechanical stop to prevent closure of the air control vent beyond the

30% open position when sold into smoke control areas.

The Contura i5 series must be fitted with a mechanical stop to prevent closure of the air control vent beyond the

30% open position when sold into smoke control areas.

The Contura i30 and i40 series must be fitted with a mechanical stop to prevent closure of the air control vent

beyond the 27% open position when sold into smoke control areas.

811142 BAV GB-7 March 2014

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