M&g Duravent, Inc.

Duravent, Inc.

Matthew L Bertler

Ryan Lemon Devine

Erik Pettitt

A throttled vent termination or cap for use in conjunction with a direct vent appliance and venting system is provided. The direct vent termination includes an inner pipe and a concentric outer housing surrounding the inner pipe to form a void between the inner pipe and the outer housing. The void adapted to provide intake air to the air intake section of the vent system. An end cap is provided at a first end of the outer pipe, the inner pipe to the end cap and having an exhaust opening therein. An intake region is formed in the outer housing providing access to the void. A throttle cover which is configured to be movably positioned and thereafter secured at one of a number of positions over the intake region using a throttle guide is provided to thereby regulate air flow into the void.

Throttled direct vent termination

A venting system includes a venting installation cap assembly for a venting system having at least an outer wall and an inner exhaust tube. The assembly includes an exhaust cap having an exhaust path coupled to the inner exhaust tube defined by a pipe section. A planar support ring having an annulus through which the pipe section passes rests on the outer tube or an adapter to the outer tube. The ring annulus surrounds the pipe section and has a diameter greater than a diameter of the outer wall. The planar support ring includes a plurality of airflow regions, surrounds the exhaust path and providing an airflow path between an exterior and a region between the outer wall and the inner exhaust tube.

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Vacaville, CA, United States of America

Matthew L Bertler