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Our Loos brand industrial boilers, now Bosch, frequently operate reliably for more than 30 years. In most cases, however, boiler systems that have been in use for over 15 years have significant potential for increased efficiency.

Our modular system components enables modernising your existing system quick and easy. In many cases, the modernisation measures are amortised within 1 to 2 years.

Heat recovery

  • A flue gas heat exchanger (economizer) reduces flue gas losses by up to 7 %
  • Condensing heat exchangers for low-temperature heat recovery, up to 7 %
  • Utilisation of condensate reduces fuel consumption by up to 12 %


  • Switching from oil to gas operation, use of multi-fuel burner systems, up to 40 %
  • Combustion control optimises the fuel-air mixture continuously
  • System control to minimise cold starts and pre-ventilation losses
  • Speed control reduces the electricity consumption of the burner by up to 75 %

Level of automation

  • Conductivity measurement reduces desalting losses
  • Automatic desalting and blow-down as needed
  • Condensate monitoring for safe utilisation of condensate

System availability

  • Remote service interface for immediate digital help by Bosch experts
  • Preventive condition monitoring signals unusual situations before they occur
  • Automatic cold start function optimises warm-up time and minimises wear
  • Remote monitoring and SMS notifications for the operator reduce supervision of the plant


  • Systematic recording and analysis of consumption data permits use of incentives
  • Depending on the country, up to 50 % lower investment costs for operators

You can find further information in our brochure

Modernisation of boiler systems (PDF 1.2 MB)

Modernisation examples from practice:

Sutter achieves significant energy savings

Increasing efficiency by modernisation (PDF 0.2 MB)

Smart data analysis facilitates future optimisation

Octapharma upgrades steam boiler system (PDF 0.7 MB)