Product description

This low-pressure vacuum switch is an essential safety component for Enviro pellet stoves, designed to monitor the negative pressure within the combustion chamber and exhaust system. The switch acts as a failsafe, ensuring that the exhaust blower is creating sufficient draft to safely vent combustion gases before allowing the fuel delivery system to operate. If the vacuum pressure drops below a safe threshold—due to a blocked flue, a failed motor, or an unlatched door—the switch interrupts the circuit to the auger, preventing an unsafe buildup of fuel or smoke. Precision-calibrated for Enviro systems, this genuine replacement part ensures that your stove's safety protocols remain intact, providing peace of mind and reliable performance throughout the heating season.

Product highlights

• Precision-calibrated for low-pressure vacuum monitoring
• Critical safety interlock for Enviro, Regency, and VistaFlame stoves
• Prevents fuel delivery in the event of poor draft or venting failure
• Durable internal diaphragm and electrical contacts for long life
• Genuine OEM part ensures compatibility and proper safety thresholds

Specs

• Manufacturer: Enviro
• Manufacturer Part Number: 50-1390
• Component Type: Vacuum Switch

Direct replacement models

Fits Enviro M55, Maxx, Milan, and other compatible models.

You will receive the same product or an OEM-Equivalent that meets the highest standard of the OEM with warranty that will be a direct-fit. Manufactured with rigorous industry standards and certified in the USA with superior quality to the OEM.