The Buderus SB Series condensing boilers by Bosch are designed to reach up to 98% efficiency using stainless steel on all three flue passes of the heat exchanger.

  • High water volume and robust boiler design
  • No restrictions with respect to return water temperature, water flow or temperature rise through the boiler
  • Dual return connections for further efficiency gains
  • Perfect for any new or retrofit application


Bosch Model Buderus SB625WS Condensing Boiler

NEW for 2013! This high-efficiency condensing boiler features design flexibility for retrofit and new construction projects.

Bosch Model Buderus SB745WS Condensing Boiler

NEW for 2013! With this boiler, project costs are reduced due to simplified piping.