fiberglass insulation, or equivalent, to prevent freezing of condensate within the pipe.
13.No clearance is required from the outer surface of the thermoplastic piping to combustible materials for fire hazard prevention. No clearance is required from the outer surface of the ventor assembly either.
14.When attaching the 3” PVC to the burner combustion air inlet collar, first apply a bead of RTV sealant to the burner inlet collar only to ensure an airtight seal. Next, affix the PVC to the collar with a ¾ x #8 sheet metal screw. This can be driven right into the collar and may protrude into the airway.
B.INSTALLATION OF VENTOR:
Fig-2
7
