Specifications

ENGLISH RAISmanualforRais2:1
9
Ifitisfoundthatthereisexcessivedraughtinthechimneytheneitheranadjustable
fluedamperoralternativelyadraughtstabilisershouldbefitted.Theadjustableflue
dampershouldnotcloseofftheflueentirely,butshouldinitsclosedpositionleavea
minimumcontinuousopeningfreeareaofatleast20%ofthetotalcrosssectional
areaoftheflueorfluepipe.
Adequateprovisione.g.easilyaccessiblesootdoorordoorsmustbeprovidedfor
sweepingthechimneyandconnectingfluepipe.
Youshouldalsofamiliariseyourselfwiththedraughtconditionsforchimneyswith2
flues.
Forstrongdraughts,thechimneyorflueshouldbefittedwithadraughtstabiliser.In
whichcase,itisimportanttoensurethatthereisafreeflowthroughareaofminimum
20cm
2
whentheregulatinggateisshut.Otherwise,thefuelenergymaynotbeused
optimally.
If,atanytime,youareunsureabouttheconditionofthechimney,youshouldcontact
achimneysweep.
Rememberthataccesstothesootdoorshouldbekeptclear.