5' Cast Iron Baseboard Section, Right Hand

Weil-McLain 623-900-131 – 5' Cast Iron Baseboard Radiator Section

The Weil-McLain 623-900-131 is a 5-foot right-end cast iron baseboard panel designed for use in hydronic heating systems. It provides consistent, radiant heat output with high thermal mass—ideal for projects where durability, efficiency, and quiet operation are essential. Suitable for residential and commercial applications, this section integrates seamlessly into modular baseboard configurations.

Product Overview

This panel serves as the terminal section on a baseboard run, equipped with right-end leg support and tappings for loop integration. Constructed from precision-cast iron, it provides long-lasting structural strength and thermal performance. The Baseray system is especially effective in perimeter heating zones and installations where convection and radiant output must be balanced.

Key Performance Features

• Cast Iron Body – Offers superior heat retention, uniform heat radiation, and resistance to corrosion over decades of service life.
• EDR Rating: Approx. 17 sq ft (based on Weil-McLain Baseray performance charts).
• Quiet Operation – Eliminates the pinging and ticking noises common in lighter steel or aluminum units during thermal expansion cycles.
• Low Profile Design – Sits unobtrusively against baseboards, maximizing usable floor space while delivering high heat output.
• Right-Side Termination – Includes molded foot support and end cap; may be joined with additional sections via factory couplings (sold separately).

Specifications

• Length: 5 feet
• Type: Right-hand end panel with integrated foot
• Construction: Cast iron
• Connection: 1-1/4" NPT tappings
• System: Compatible with closed-loop hydronic systems (hot water or low-pressure steam)

Installation Guidance

This unit should be installed by a licensed plumber or HVAC contractor familiar with hydronic systems and proper expansion allowance. Installation involves joining cast iron sections using appropriate couplings, ensuring correct pitch for condensate removal (for steam), and verifying loop capacity for flow balance. Weight, clearance, and leveling should be factored into jobsite prep.

Contractor Notes

• Each section arrives primed and ready for top-coat painting if desired to match project finish specs.
• Compatible with Weil-McLain Baseray series accessories for corner turns, couplings, and valve trims.
• Ideal for perimeter loop designs requiring reliable, steady-state output with minimal maintenance.