25
8. Operateheaterthrough1heatcycletoensurecombustion-airand
ventpipesareproperlyconnectedtoconcentricventtermination
connections.
fIGure G.
MultI-concentrIc vent terMInatIonsWhentwoormoreappliancesaredirectedventedwithconcentric
ventterminations near each other,each appliance must be
individuallyvented.NEVERcommon ventthisappliance. When
twoor more appliances are direct vented using concentric vent
terminations,theappliances maybe ventedasshown inFigureH
andFigureI.
figure h.
Concentric Vent Terminations
forHorizontalDirectVenting.
figure I.
Concentric Vent Terminations for Vertical
DirectVentingthrougharoof.