Weil McLain 381-800-476 6″ Vent Damper Kit with Motor

Description

The Weil McLain 381-800-476 is a complete 6″ vent damper kit with motor, engineered to work seamlessly with compatible Weil McLain boilers. By automatically closing the flue when the boiler is not firing, this vent damper kit significantly reduces standby heat loss — one of the most common sources of energy waste in hydronic heating systems.

Designed as a direct OEM replacement, this kit includes everything needed for a straightforward installation, including the motorized damper blade and all necessary hardware. The integrated motor provides reliable, automatic operation that opens the damper on a call for heat and closes it once the burner shuts off, helping to maintain system efficiency throughout the heating season.

Key Features

• 6″ vent damper sized for compatible Weil McLain boiler flue connections
• Includes motorized actuator for fully automatic open/close operation
• Reduces standby flue heat loss to improve overall boiler efficiency
• OEM replacement kit designed for precise fit and reliable performance
• Complete kit includes damper assembly, motor, and installation hardware
• Helps lower fuel consumption and operating costs

Application

This vent damper kit is intended for use with select Weil McLain boiler models requiring a 6″ flue connection. Always verify compatibility with your specific boiler model before installation. Installation should be performed by a qualified HVAC or plumbing professional in accordance with all applicable local codes and the manufacturer’s installation instructions.