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EVC/RVC — Vent Collar

How to Specify

Using tables from the National Fuel Gas Code or our Sizing & Application Guide, determine the diameter of venting required. The Sizing & Application Guide also offers tips on good design including multi-appliance system sizing and design. The System Design and Installation Guide is an additional resource.

Amerivent FAQs

EVC/RVC — Vent Collar

The vent collar provides a cover for a rough wall opening, and fits doublewall pipe only.

Available sizes (inches)

ModelSize
3EVC3"
4EVC4"
5EVC5"
6EVC6"
7RVC7"
8RVC8"
9RVC9"
10RVC10"
12RVC12"