The Series 24 is a cast-iron water or steam boiler designed for use with light oil, gas, or a light oil-gas combination. The Series 24 is designed for installation with either a standard chimney or a pressurized vent system. The boiler has a swing-open front door for easy service and inspection.

The Series 24 is available in 10 sizes, with heating capacities ranging from 342,000 to 1,852,000 BTU/hr.

This boiler is easily assembled with draw rods, and all the maintenance access areas are located on the left side, simplifying servicing.