8English RAIS - Manual for RAIS Rina, RAIS VivaA single wall metal fluepipe is suitable for connecting the stove to the chimney but is notsuitable for using for the complete chimney. The chimney and connecting fluepipe musthave a minimum diameter of 150 mm and its dimension should be not less than the sizeof the outlet socket of the stove which is 150 mm in diameter. Any bend in the chimneyor connecting fluepipe should not exceed 45°. 90°bends should not be used.Combustible material should not be located where the heat dissipating through the wallsof fireplaces or flues could ignite it. Therefore when installing the stove in the presenceof combustible materials due account must be taken of the guidance on the separationof combustible material given in Building Regulations Approved Document J and also inthese stove instructions.If it is found that there is excessive draught in the chimney then either an adjustable fluedamper or alternatively a draught stabiliser should be fitted. The adjustable flue dampershould not close off the flue entirely but should in its closed position leave a minimumcontinuous opening free area of at least 20 % of the total cross sectional area of the flueor fluepipe.Adequate provision e.g. easily accessible soot door or doors must be provided for sweep-ing the chimney and connecting fluepipe.You should also familiarise yourself with the draught conditions for chimneys with 2 flues.The flue outlet spigot is eiter 150 (6”) mm in diameter, or 129 (5”) mm in diameter.For strong draughts, the chimney or flue should be fitted with a draught stabiliser. Inwhich case, it is important to ensure that there is a free flow-through area of minimum20 cm² when the regulating gate is shut. Otherwise, the fuel energy may not be usedoptimally. If, at any time, you are unsure about the condition of the chimney, you shouldcontact a chimney sweep.Remember that access to the access door should be kept clear.InstallationWhen installing the wood burning stove, there are some rules which MUST be followed:The stove must be set up and installed in accordance with all current national and localrules and regulations. Local authorities and a chimney specialist should be contacted priorto set up.It is prohibited to carry out unauthorised alterations to the stove.