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EIX — Increaser

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

EIX — Increaser

The increaser is used to increase vent size.AV_EIX_TBGV line art increaser

AMP B-Vent Round Increaser

Model #Inlet Size(s)Outlet SizeA
3EIX43"4"6"
*EIX53", 4"5"6"
*EIX63", 4", 5"6"6"
*EIX73", 4", 5", 6"7"6"
*EIX84", 5", 6"8"6"
7RIX87"8"6"
*EIX95", 6"9"7"
*RIX97", 8"9"7"
6EIX106"10"7"
*RIX107". 8", 9"10"7"
*RIX127", 8", 9", 10"12"7"
*RIX148", 9", 10", 12"14"7"
*RIX169", 10", 12", 14"16"6"
*RIX1810", 12", 14", 16"18"6"
*RIX2012", 14", 16", 18"20"6"
*RIX2214", 16", 18", 20"22"6"
*RIX2416", 18", 20", 22"24"6"
*RIX2618", 20", 22", 24"26"7"
*RIX2820", 22", 24", 26"28"7"
*RIX3022", 24", 26", 28"30"7"

*denotes the inlet (smaller size) to complete model number