RAIS Q-20 User Manual

Also see for Q20: Instructions for installation, use and maintenance

Contents

RAIS Q-20 User Manual Manual pdf 14 page image

ENGLISH RAIS - manual for Q-2014Operating instructionsPlease note that HETAS Ltd Appliance Approval only covers the use of dry sea-soned wood logs on this appliance. HETAS Ltd Approval does not cover the useof other fuels either alone or mixed with the wood logs, nor does it cover instruc-tions for the use of other fuels.FuelThe stove is designed and approved in accordance with EN 13240 and NS 3058 for stok-ing split, dried firewood. The firewood must have a water content of 15-22% and its max.length should be the length of the combustion chamber minus 50-60 mm.Stoking with wet firewood causes both soot, environmental pollution and bad fueleconomy. Freshly cut wood contains approx. 50-70% water and is thoroughly unsuitablefor stoking. Count min. 1 year of storage time for newly cut wood before using.Wood with a diameter of more than 100 mm should be split. Regardless of wood size, itshould always have at least one surface area free of bark.We do not recommend stoking with painted, laminated or impregnated wood, wood witha synthetic surface, painted refuse wood, chipboard, plywood, domestic waste, paper bri-quettes and pit coal, as this will produce malodorous smoke, which could be poisonous.When firing with the above-mentioned items and amounts larger than those recommend-ed, the stove is subjected to a larger amount of heat, which results in a higher chimneytemperature and lower efficiency. This can result in the stove and chimney becoming dam-aged and would void the warranty.The calorific value of the firewood is closely connected to the moisture level of thefirewood. Moist firewood has a low heat value. The more water the wood contains, themore energy it takes for this water to vaporise, resulting in this energy being lost.ONLY USE RECOMMENDED FUELSThe following table shows the calorific value of different types of wood, which have beenstored for 2 years, and which have a residual moisture of 15-17%.Wood Kg dry wood pr. m3 compared to beech/oakHornbeam 640 110%Beech and oak 580 100%Ash 570 98%Maple 540 93%Birch 510 88%Mountain pine 480 83%Fir 390 67%Poplar 380 65%1 kg of wood yields the same heat energy irrespective of wood type. 1 kg beech merelytakes up less space than 1 kg of fir.