RAIS 700 - Operating Instructions; Fuel

ENGLISH RAISmanualforRais700
22
ONLYUSERECOMMENDEDFUELS
Thefollowingtableshowsthecalorificvalueofdifferenttypesofwood,whichhavebeen
storedfor2yearsandwhichhavearesidualmoistureof15 17%.
Wood Kgdrywoodprm
3
comparedtobeech/oak
Hornbeam 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%
1kgofwoodyieldsthesameheatenergyirrespectiveofwoodtype.
1kgofbeechmerelytakesuplessspacethan1kgoffir.
OPER ATINGINSTRUCTIONS
PleasenotethatHETASApplianceApprovalonlycoverstheuseofdryseasonedwood
logsonthisappliance.HETASApprovaldoesnotcovertheuseofotherfuelseither
aloneormixedwiththewoodlogs,nordoesitcoverinstructionsfortheuseofother
fuels.
Fuel
ThestoveisdesignedandapprovedinaccordancewithEN13240andNS3058for
burning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,envi ronmentalpollutionandbadfuel
economy.Freshlycutwoodcontainsapprox.5070%waterandisthoroughlyunsuitable
forstoking.Allowatleast1yearofstoragetimefornewl ycutwoodbeforeusing.Wood
withadiameterofmorethan100mmshouldbesplit.Regardlessofwoodsize,itshould
alwayshaveatleastonesurfaceareafreeofbark.
Wedonotrecommendstokingwithpainted,laminatedorimpregnatedwood,woodwith
a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
recommended,thestoveissubjectedtoalargeramountofheat,whichresultsina
higherchimneytemperatureandlowerefficiency.Thiscanresultinthestoveand
chimneybecomingdamagedandwouldvoidthewarranty.
Thecalorificvalueofthefirewoodiscloselyconnectedtothemoisturelevel.
Moistfirewoodhasalowheatvalue.Themorewatert hewoodcontains,themore
energyittakesforthiswatertovaporise,resultinginthisenergybeinglost.