Weil McLain, 623900123, Baseboard Right Sub Assembly, 2 ft, 9-3/4 in, Cast Iron

Weil-McLain 2-Foot Cast Iron Hydronic Baseboard Leg Panel – Model 623900123

The Weil-McLain Snug series 2' leg panel is part of a modular cast iron baseboard system designed for hydronic heating applications. Constructed from durable cast iron, this panel provides long-term thermal mass and even heat distribution suitable for both residential and light commercial systems. The leg panel serves as one of the terminal sections of a complete baseboard run, typically installed in conjunction with intermediate panels and matched trim components.

Product Overview

This unit is manufactured from gray cast iron and configured for floor-mount perimeter installation. Its thermal inertia makes it especially effective in gravity or pumped hot water systems where heat retention and silent operation are priorities. With integrated flow paths and radiation fins cast as a single unit, this leg panel is engineered for both performance and structural integrity.

Key Specifications

• Length: 24 inches nominal
• Construction: Cast iron, precision molded
• Connection: Threaded (NPT), field-adaptable to system piping
• Mounting Type: Floor-supported
• Operating Pressure: Up to 50 psi
• Application: Closed-loop hydronic heating (gravity or forced circulation)

Installation Guidance

This panel should be installed in conjunction with appropriate intermediate and end panels using Weil-McLain alignment hardware. Ensure level support across the floor and correct alignment with adjacent cast iron elements. Use approved sealants or gaskets at connection points, and torque fittings to manufacturer-recommended specifications. Professional installation is advised to ensure code compliance, pressure integrity, and performance consistency across the system.

Use Cases

• Perimeter heating zones in historic renovations or retrofit projects
• Gravity or low-flow hydronic systems requiring high thermal mass
• Residential and institutional buildings requiring long-life heat emitters with quiet operation

Performance Considerations

Cast iron baseboard systems deliver balanced radiant and convective output. The high mass of this panel allows for slower temperature fluctuations, reducing system cycling and maintaining comfort over extended periods. Panel spacing and layout should follow design load calculations and take into account building envelope characteristics.