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8. Operateheaterthrough1heatcycletoensurecombustion-airand
ventpipesareproperlyconnectedtoconcentricventtermination
connections.
fIGure G.
MultI-concentrIc vent terMInatIons
Whentwoormoreappliancesaredirectedventedwithconcentric
ventterminationsnear each other, each appliance must be
individuallyvented.NEVERcommon ventthisappliance.When
twoormore appliances are direct vented using concentric vent
terminations,theappliances maybevented asshownin FigureH
andFigureI.
figure h.
ConcentricVentTerminations
forHorizontalDirectVenting.
figure I.
ConcentricVentTerminationsforVertical
DirectVentingthrougharoof.