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Home » Categories » HVAC » Commercial Products » Heating » Boilers » Gas » Bosch Thermotechnology

Bosch - SB625WS Commercial Boiler

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



With inputs ranging from 563 to 2200 MBH, the new SB625WS Series has an increased maximum operating pressure to 80 psi, and a 10 year non-prorated limited warranty. A full three-pass flue design extracts latent heat and maximizes overall efficiency.



Advantages at a Glance 

  • Ultra High Efficiency - Up to 98%
  • Multi-fuel options available: NG, LP, ultra low sulfur oil and heating oil type 2
  • Pressure rating up to 80 psi
  • Full-swing openings of the main combustion chamber and fire tube heating surface assure easy inspection and service


  • High mass design for new construction and retrofit applications
  • Titanium infused stainless steel fire tubes for long life
  • Dual returns provide unique design opportunities
  • No restriction on return temperature and flow rates
  • 544 to 2,190 MBH Output
  • Top water connections for easy access and serviceability



SB Series Brochure - (PDF 2.4 MB)

Engineering Submittal Sheets

Model 160 - PDF 1.0 MB 

Model 220 - PDF 0.7 MB 

Model 290 - PDF 0.7 MB 

Model 370 - PDF 0.7 MB 

Model 480 - PDF 0.7 MB 

Model 640 - PDF 0.7 MB 

Series - Recommended Burners - PDF 0.2 MB 


Installation Manual - PDF 3.9 MB 

Operations Manual - PDF 0.6 MB 


SBWS Specification - DOC 0.1 MB 

REVIT Drawings

 REVIT File - ZIP 0.9 MB 


For additional information visit Bosch - SB625WS Commercial Boiler  Product Page.

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