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ENGLISH RAISmanualforRais600&Rais80
Ifitisfoundthatthereisexcessivedraughti nthechimneytheneitheran
adjustablefluedamperoralternativelyadraughtstabilisershouldbefitted.The
adjustablefluedampershouldnotcloseofftheflueentirely,butshouldinits
closedpositionleaveaminimumcontinuousopeningfreeareaofatleast20%of
thetotalcrosssectionalareaoftheflueor fluepipe.
Adequateprovisione.g.easilyaccessiblesootdoorordoorsmustbeprovidedfor
sweepingthechimneyandconnectingfluepipe.
Youshouldalsofamiliariseyourselfwiththedraughtconditionsforchimneyswith
2flues.
Forstrongdraughts,thechimneyorflueshouldbefittedwithadraught
stabiliser.Inwhichcase,itisimportanttoensurethatt hereisafreeflowthrough
areaofminimum20cm
2
whentheregulatinggateisshut.Otherwise,thefuelen
ergymaynotbeusedoptimally.
If,atanytime,youareunsureabouttheconditionofthechimney,youshould
contactachimneysweep.
Rememberthataccesstothesootdoorshouldbekeptclear.