10
#6Installingintoanexistingfireplace
chimney(USandCanada)
Thismethodprovidesexcellent ventingfornor-
maloperation.Thismethodalsoprovidesnatural
draftintheeventofapowerfailure.
InCanadaandsomeplacesintheUSitisre-
quiredthattheventpipe extendallthewaytothetop
ofthechimney.
Inthismethodacapshouldalsobeinstalled
onthechimneytokeepoutrain.Besuretouseap-
provedpelletventpipefittings.Sealpipejointswith
siliconeinadditiontothesealingsystemusedby
themanufacturer.Pipesizeshouldbeincreasedto
4"usingthismethod.
#7Installingintoan existing
chimney(USandCanada)
Thismethodprovidesexcellent ventingfornor-
maloperation.Thismethodalsoprovidesnatural
draftintheeventofapowerfailure.
InCanadaandsomeplacesintheUSitisre-
quiredthattheventpipe extendallthewaytothetop
ofthechimney.Thepipeorlinerinsidethechimney
shouldbe4"diameter.
Inthismethodacapshouldalsobeinstalled
onthechimneytokeepoutrain.Onedisadvantage
ofthismethodisthatitishardertocleanthevent
pipe,therefore,thereisatendancynottodoitas
oftenasneeded.
Fig.12
Fig.13
Venting
Venting