Venting a gas stove into an existing masonry or steel chimney requires a transition piece that adapts the appliance outlet to a B vent or natural vent run. The Enviro Westport B Vent Adapter (part 50-4176) replaces the starter vent connector used on Enviro Westport and Ascot gas stoves.

Purpose

This adapter serves as the starter piece linking the stove's flue outlet to a pre-existing masonry or steel chimney. It is built for MV and Dexen valve configurations and includes the jumper wires Dexen valves require to complete the circuit.

Key Benefits

• Genuine Enviro part built to the same specification as the original equipment
• Constructed for long-term service in the vent path rather than a short-term fix
• Includes the jumper wires needed for Dexen valve wiring, so nothing extra to source
• Direct-fit for listed Westport and Ascot models — no fabrication needed

Other Notes

Confirm which gas valve your stove uses before ordering, since the wiring configuration differs between MV and Dexen setups. Installation and venting connections on gas appliances should be performed by a licensed gas technician in accordance with local codes.

If you are replacing this adapter, it is worth inspecting the gas valve, pilot assembly, and any related gasket or seal at the vent connection for wear at the same time.

Not sure it fits your unit? Contact us with your model number and we'll confirm before you order.