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RN — 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.

How to Purchase

Vent FAQs

RN — Increaser

Assets/Details

Submittal Data (68 KB, PDF)

HC_RN_drw

Increaser dimensions (inches)

ModelSizeDim. ADim. B
3RN43" to 4"3 3/4"5 1/4"
3RN53" to 5"3 3/4"5 1/4"
3RN63" to 6"3 3/4"5 1/4"
3RN73" to 7"3 3/4"5 1/4"
4RN54" to 5"3 3/4"5 1/4"
4RN64" to 6"3 3/4"5 1/4"
4RN74" to 7"3 3/4"5 1/4"
5RN65" to 6"3 3/4"5 1/4"
6RN76" to 7"3 3/4"5 1/4"
6RN86" to 8"3 3/4"5 1/4"
7RN87" to 8"3 7/8"5 3/8"
8RN108" to 10"3 7/8"5 3/8"
8RN128" to 12"3 7/8"5 3/8"
10RN1210" to 12"3 7/8"5 3/8"