Skip to navigation
OBPWS — Hold-down Plate

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

OBPWS — Hold-down Plate


  • The Type BW hold-down plate is required for connecting Type BW vent to a wall furnace outlet.

Hold-Down Plate dimensions (inches)

ModelSizeDim. ADim. BDim. C
4OBPWS4"9"9 5/8"2 5/16"