Sterling 55wj-1-4a Hydronic Baseboard Enclosure 4 Foot

Product Description

The STERLING 55wj-1-4a is a 4-foot hydronic baseboard enclosure designed for residential heating installations. This enclosure-only unit forms the outer housing for a hydronic baseboard heating system, providing the structural shell that contains the heating element and directs convective airflow into the living space. Finished in classic white, the enclosure features radius-formed end covers and a slim, low-profile silhouette suited to installations where wall space is limited. Heavy-gauge brackets snap into place without sheet metal screws, and telescoping fill-in sections eliminate the need to cut material on the job. Licensed plumbers and hydronic heating technicians are the typical installers.

This enclosure is intended for residential hydronic baseboard heating applications where a clean, low-height profile is required. The Kom-pak line is engineered for standard residential spaces, fitting along exterior walls, under windows, and in areas where conventional baseboard depth is impractical. The white finish complements standard interior trim. The 4-foot section length works as a standalone run or as part of a longer baseboard layout using telescoping fill-in sections and splice plates available separately for extended runs.

Key Features

• Radius-formed end covers provide smooth, flowing lines that blend with interior trim
• Heavy-gauge snap-in brackets eliminate sheet metal screws for faster installation
• Telescoping fill-in sections allow length adjustment without cutting or material waste
• Silent Glide Shoe lets the heating element expand and contract without noise
• Boxed and serrated aluminum fins increase radiating surface area and direct convection airflow
• Open Box fin design prevents fin edges from contacting one another, maintaining airflow integrity

Compatibility

Designed as an OEM-style enclosure for the Sterling Kom-pak hydronic baseboard heating line in residential applications. Splice plates are provided with 8-foot, 6-foot, and 5-foot lengths. Telescoping sections are available in 14-foot lengths. Confirm element and enclosure series compatibility before ordering.

Installation Notes

Installation is typically performed by a licensed plumber or hydronic heating technician. Shut off and depressurize the hydronic system before disconnecting or modifying any baseboard connections. Follow local mechanical codes and manufacturer assembly instructions when securing enclosure brackets and end caps. Do not overtighten or force snap-in brackets, as this can distort the enclosure profile.

Technical Specifications

• Length: 4 feet
• Finish: White
• Fin Type: Boxed and serrated aluminum
• Bracket Type: Heavy-gauge snap-in, no sheet metal screws required
• Telescoping Fill-In: Available in 14-foot sections
• Application: Residential hydronic baseboard heating

Standard Information

• Brand: STERLING
• Manufacturer Part Number: 55wj-1-4a