Specifications

ENGLISH RAISmanualforRaisAvant
8
Chimney
Thechi mneyisthedrivingforcewhichmakesthestovefunction.Inorderforthestoveto
performsatisfactorilythechimneyheightmustbesuffi cienttoens urethecorrectdraught
of14to18Pa,soastocleartheproductsofcombustionandpreventproblemsofsmoke
leakingintotheroomwhenthestoveislit.
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BS5854:1980maybeusedasthebasis
fordecidingwhetheraparticularchimneydesignwi llprovidesufficientdraught.
PleaseNote,thisappliancehasbeentestedbythemanufacturersandworksona3m
straightflue.
Theoutletfromthechimneyshouldbeabovetheroofofthebuildi nginaccordancewith
theprovisionsoftheBuildi ngRegulationsApprovedDocumentJ.
Iftheinstall ationisintoanexi stingchimney,thenitmustbesoundandhavenocracksor
other faultswhich mayall owfumesintothehouse.Olderproperties,especially,mayhave
chimneyfaultsorthecrosssectionmaybetoolargei.e.morethan230x230mm.
Remedialactionshouldbetakenifrequired,expertadviceshouldbesoughtwhere
requi red.
Ifthechimneyrequireslining,thenasuitablesolidfuelfluelinermustbeused,in
accordancewithBuildingRegul ationsApprovedDocumentJ.
Anye xistingchimneymustbeclearofobstructionandshouldhavebeensweptclean
immediatelybeforethe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ther eisnoexi stingchimneytheneitheraprefabricatedblockchimney,inaccordance
withBuildingRegulationsApprovedDocumentJoratwinwall insul atedstainl esssteel
fluetoBS4543canbeused.Thesechimneysmustbefittedinaccordancewiththe
manufacturer’sinstructionsandtheBuildingRegulations.
Asinglewallmetal fluepipei ssuitableforconnectingthestovetothechimneybutis
notsui tableforusingforthecompletechimney.Thechimneyand
connectingfluepipemusthaveaminimumdiameterof150mmandit’s
dimensionshouldbenotlessthanthesizeoftheoutletsocketofthestovewhi chis
150mm.Anybendinthechimneyorconnectingfluepipeshouldnotexceed45°.90°
bendsshouldno tbeused.
Combustiblematerialshouldnotbelocatedwheretheheatdissipatingthroughthe
wallsoffireplacesorfluescouldigni te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Ap
provedDocumentJandalsointhesestoveinstructions.