LGB Commercial Gas Boiler Series 3

Product Overview
The Weil-McLain LGB Series 3 Commercial Gas Boiler is a durable, high-performance solution for light commercial and institutional heating needs. Offering 14 models with up to 84% thermal efficiency, it features a rugged cast iron design, easy installation options, and user-friendly controls. Ideal for schools, municipal buildings, and large residences, the LGB Series 3 delivers reliable and efficient heating.

Key Features

• Rugged cast-iron section heat exchanger with time-proven horizontal design and wide open waterways for forgiving system water conditions. Weil-McLain+1
• Designed for ease of installation & service: available in knock-down, assembled block or fully packaged shipments; includes upgraded controls and quick-connect draft inducer. Weil-McLain+1
• Certified high efficiency: delivers approx. 84% thermal efficiency (water mode) for the models listed. Weil-McLain+1
• Applications include large residential, multi-family, educational, institutional, municipal, and more. Weil-McLain+1
• Durable design: heavy-duty construction offers extended service life and the trust of a leading brand. Weil-McLain+1

Typical Applications
Ideal for large residential buildings, multi-unit housing, schools, hospitals, municipal facilities — any setting where dependable heating and efficient operation matter.

Why It Stands Out
This boiler combines the trusted cast-iron reliability of Weil-McLain with modern features that streamline installation and operation. With its compact form, easy service access, and high efficiency, it delivers value both during installation and throughout its service life.