SRB Series – Rectangular Non-Condensing Economizer

SRB Series economizers are rectangular, non-condensing heat recovery units engineered for use with larger firetube and watertube boilers firing natural gas, light oil, or combination fuels. Designed to recover sensible heat from flue gas and preheat boiler feedwater, SRB units increase thermal efficiency by 4–6%, depending on system parameters. Their rectangular configuration allows for greater heat transfer surface area and supports both vertical and horizontal gas flows. Built with durable carbon steel or stainless steel tubes, they are field-assembled, scalable, and fully customizable to suit high-capacity steam systems.

Specifications:

Application: Firetube & watertube boilers

Fuel types: Natural gas, light oil, dual fuel

Heat recovery: Sensible only

Efficiency gain: 4–6%

Design: Rectangular coil, non-condensing

Materials: Carbon steel or stainless steel

Installation: Field-assembled

Gas flow: Horizontal or vertical

Water circuit: Boiler feedwater

Size range: Custom-engineered for 100+ HP systems