The Weil-McLain 623-900-126 is a 3-foot right-hand cast iron baseboard panel designed for hot water or low-pressure steam heating systems. Built for consistent thermal performance and longevity, this section integrates as the terminal component on right-end runs in Baseray installations. Its cast iron construction ensures high heat retention and reliable radiant and convective output.
Professional-Grade Heating Performance
This panel features solid cast iron sections that deliver efficient, quiet, and steady heating, especially in perimeter and zone loop systems. Designed to match Weil-McLain's modular Baseray series, it supports uniform heat distribution with minimal thermal fluctuation. Its high thermal mass allows for longer heat release cycles even after the boiler stops firing.
Key Advantages
Consistent Output – Designed to maintain room temperature by radiating heat evenly across the baseboard run.
Cast Iron Body – Withstands mechanical wear, corrosion, and high operational temperatures over decades of service.
Quiet Operation – No expansion noise or pinging, unlike lighter sheet metal alternatives.
Modular Integration – Fully compatible with other Baseray components and end sections for streamlined field installation.
Specifications
Length: 3 feet
Type: Right-hand end panel with foot support and closed-end cap
Connection Size: 1-1/4" NPT
Material: Cast iron (primed, field-paintable)
EDR Rating: Approximately 10.2 sq. ft.
System Compatibility: Hot water and low-pressure steam hydronic systems
Installation Considerations
This component should be installed by licensed professionals. Field assembly involves connecting sections with push nipples and compression couplings, sealing tappings, and aligning for pitch when installed on steam systems. Due to its weight and rigidity, installation requires structural support planning and accurate pipe layout.
Contractor-Focused Features
Standardized Section Sizing – Matches existing Baseray assemblies for easy retrofits or system extensions.
Paintable Finish – Factory-primed to accept topcoat in the field per project requirements.
Right-End Configuration – Includes molded foot and end closure; no additional trim required for termination.