If a pellet stove or insert won't ignite, shuts down mid-cycle, or throws an exhaust-related error code, a failed pressure switch is a common cause. The Enviro Pressure Vacuum Switch (EF-017) replaces the worn vacuum switch component in compatible Enviro, Envirofire, and Hudson River Stove Works pellet appliances.

Purpose

This switch monitors exhaust pressure in the pellet stove or insert, ensuring the venting system maintains proper draft before allowing normal operation.

Key Benefits

• Direct-fit replacement for the original EF-017 switch — no modification required
• Genuine Enviro part number, matched to factory specifications
• Restores proper exhaust pressure monitoring and normal ignition cycling
• Ships new in original packaging
• Fits 9 compatible models on record across the Enviro, Envirofire, and Hudson River Stove Works lines

Other Notes

Before disconnecting the switch, unplug the stove or insert from its power source and take a picture of the wire connections so they can be reattached in the correct positions.

When replacing this switch, it's worth inspecting the exhaust blower, gaskets, and vacuum tubing for wear, since pressure-related fault codes can also stem from those components.

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