24
3-90-00674R28_12/13
Thismethodprovidesexcellentventingfornormaloperation.
This method also provides natural draft in the event of a
powerfailure.Ifthechimneyconditionisquestionableyou
maywanttoinstallalinerasinmethod#2.
This is the minimum allowed vent pipe using 4" stainless
steelexpipe.
Theventpipemustextendpastthedampersealingareaby
atleast12inches.
Note:Theinsulationmaterialmustnotbeallowedtoexpand
tothepointthatitcoverstheendoftheexpipe.
Thechimneyshouldbecappedwithanystylecapthatwill
notallowrainorsnowtoenter.
InsomeplacesintheUSandCanada,itisrequiredthatthe
ventpipeextendallthewaytothetopofthechimney.Check
yourlocalcodes.
Fig.51
Venting
#3 Installing into an existing chimney
Thismethodprovidesexcellentventingfornormaloperation
andinareplacewithinadequateuespace,oraheightof
over30feet.A3"or4"PLventpipeshouldbeusedwiththe
neededswiveluestub.
NOTE:Theuestubinsulationwrapmuststillbeusedwith
thismethod.Seepage14,Fig.27&29.Witha100%outside
airkittheoutsideaircanbeinstalledinthesamemanner
astheuepipe.
CAUTION
KEEP COMBUSTIBLES (SUCH AS GRASS, LEAVES,
ETC.) AT LEAST 3 FEET AWAY FROM THE FLUE
OUTLET ON THE OUTSIDE OF THE BUILDING.
Thechimneytopmustbecapped
topreventrainand/orsnowfrom
enteringthechimney.
Stainless Steel Outside Air Inlet Cover
part# 1-10-09542
3" Flex pipe
12"min
Fig.52
36"
Chimneytop
MUST BE SEALED
The damper area must be
sealedwith asteel plateandit
isrecommendedthat Kaowool,
Mineral wool or an equivalent
non combustible insulation
is used on top of the plate
to reduce the possibility of
condensation. Insulation alone
shouldnotbe usedto sealthe
damperopening.
Fiberglassinsulation
packed above the
damperopeningand
sealedplate.(Nota
Harmanproduct.)
#4 Preferred method
WARNING
CHIMNEY CONNECTOR PIPE MAY NOT PASS
THROUGH CONCEALED SPACES INCLUDING AN
ATTIC, ROOF SPACE, CLOSET, FLOOR OR CEILING.
12"min.