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Oncethechimneypipeisinstalled,placetheboxontopofthereplacearoundthechimneypipeandattachthetwohalvesofthe
CAKtogether.SeeFigure1and2.Installationonasee-throughreplacewillrequirebendingthetabsdowntomatchtheangleof
thetoppan/smokeshield.SeeFigure3.
Usethepre-punchedholesinthetabsasguidesanddrill3/32in.holesthroughthereplacetop.
Securetheboxwiththescrewsprovided.
Connecta4in.Class1ducttothecollarontheCAKbyusingoneofthewiretiesprovided.
Routetheducttoanoutsidewall.Theinletventhoodmustbeinstallednolowerthansixfeetabovegroundlevelsoitwillnotbe
blockedbydriftingsnow,etc.IftheCAKisinstalledinachase,theinletventhoodmustbeatleastthreefeetbelowthechimneytop.
Cutaholethroughtheoutsidewallfortheinstallationoftheductinletventhood.A4¾in.diameterholeissufcient.
Feedthelooseendoftheductthroughthehole.
Attachittotheinletventhoodwiththewiretieprovided.
Pushtheventhoodintotheholeandsecureitinplace.
Theductmustneverbecompressedordeformed!Reducingthecrosssectionalareaoftheductwillreducetheamountofairow.When
additionalductingisneeded,useClass1metallicductmaterialtoconnectsectionsoftheClass1ductreferredtoinStep3.
Bend tabs down
to install.