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Manafacture: Aarrow Fires File size: 583.26 kb File name: cef1d389-d0a7-46bd-b073-17a894c50f3e.pdf Language of manual:

If the flue size is more than 225mm (9 inches) diameter or 200 x 200mm square, a suitable lining of 150mm (6 inches) diameter should be fitted, or if the flue length is over 5.5 metres one size larger than the appliance outlet should be fitted. This should be a double skin stainless steel flexible flue liner that is independently certified for use with solid fuel. Details of suitable linings for use with solid fuel are given in the Official HETAS guide that can be viewed on their website at It is also important that suitable flue pipe complying with the Building Regulations is used to connect the stove to the flue in the chimney and that suitable access is provided into the flue for regular inspection and sweeping of the flueways. The installer should comply with the Building Regulation requirements in respect of providing a Notice Plate giving details on the chimney, flue lining, hearth and fireplace installation. Approved Document J of the Building Regulations for England and Wales is available from The Stationery Bookshops and can also be viewed at the ODPM website at: Details on the relevant Building Regulations and BS British Standards are given in the "General Precautions" section page 8 of these instructions. 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 (6'') in length. If the fire appears to be working hard but produces very little output to the room it is likely that excessive 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. We do not recommend the use of a damper when burning solid fuel. FOR ALL APPLIANCES Access for cleaning the flue should be incorporated in the system other than through the appliance (e.g. a soot door or access through register plate). Purpose-made soot doors and inspection lengths are available from manufacturers of all systems. Ensure that the whole length of the flue can be reached from the soot door. 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 300mm2 for each kW of rated output. For advice on flues and chimneys contact; NACE (National Association of Chimney Engineer): telephone 0800 0924019 or NACS (National Association of Chimney Sweeps): telephone 01785 811732 Acorn Multifuel Stoves INSTALLATION TYPICAL REAR FLUE OUTLET Acorn Multifuel Stoves INSTALLATION TYPICAL METAL INSULATED CHIMNEY SYSTEM TO BE INSTALLED TO THE CHIMNEY MANUFACTURERS INSTRUCTIONS IN COMPLIANCE WITH BUILDING REGULATIONS AND BS7566 PTS 1-4 A is minimum clearance for non-insulated flue = 1.5 x D to a non-combustible surface/material or 3 x D to combustible surface/material PLAN VIEW OF REGISTER PLATE AND CLEARANCES FOR NON INSULATED FLUES Acorn Multifuel Stoves INSTALLATION INSTRUCTIONS ADD IN BOILERS Acorn 4 & 5 multifuel stoves offer the option of a slab boiler, which occupies the position of the rear firebox liner panels. Fitting: •Remove the fuel retainers, rear firebox liner panels and throat plate. •Knock out the blanking discs in the back plate corresponding to the terminals on the boiler. •Introduce the boiler to the appliance through the main fire door and locate the terminal pipes through the back plate holes and seal around boiler terminals with fire cement. •Engage locking nuts to the thread of the terminals and tighten to secure the boiler in position, ready for connection to flow and return pipes. •Replace throat plate (slab boilers only) and fuel retainers. Do not fit a throat plate with a cantilever boiler. Note: On boilers the terminal which is approximately flush with the edge of the boiler must be fitted uppermost, to prevent "Kettling". WATER CONNECTIONS Heating systems The size of the heating system which can be run, will depend on the output rating of the appliance. It will be necessary to work out heat loss calculations for the system proposed in order to establish the kW/hr rating. An appliance that will meet this figure can then be chosen; (for boiler outputs please refer to the brochure). The constructional requirements of installing and connecting the appliance also need to be taken into account when selecting. Design and calculations for individual heating systems should be carried out by a qualified heating engineer. In many cases your supplier will be able to offer advice and assistance. Direct Systems Stainless steel boilers, either factory fitted or retro-fitted as add-in boilers enable connection to direct systems to be made without the need to change the cylinder or to f...

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