Heating using exhaust air

JUMAG waste heat boilers utilise hot flue gases from an upstream process to generate steam. These boilers are: compact, efficient, robust, modular and not subject to monitoring in many countries.

The JUMAG waste heat boiler need not fear comparisons with large steam boilers:

  • High heat exchanger output on a small area
  • Modular setup – cost-efficient adjustment to many different systems
  • No TÜV monitoring required – no boiler attendant
  • High operating and service friendliness
  • Robust pressure vessel in the design of a small shell boiler


  • High heat exchanger output on a small area
  • Feedback to CHP, for example, for adjusting the motor's load based on the steam demand
  • Three to four-strand flue gas routing
  • Energy-efficient JUMAG accessories for minimum loss
  • Combines the benefits of a large capacity steam boiler with those of a quick steam boiler
  • Minimal space required due to compact design


Robust and low-maintenance

  • Pressure vessel in accordance with water chamber principle with up to 9 mm material thickness
  • No pipe coil
  • Low-maintenance circulation pump
  • High operating safety, due to the simple and compact overall setup
  • High quality standards due to the use of standard industrial parts


  • Not subject to approval or monitoring in many countries
  • Simple operation with self-explanatory full text touch-screen control in many languages
  • Adjustable manually, automatically or via control centres
  • Good accessibility for maintenance
  • Alternatively with automatic blow down or desalination

How it works

In contrast to the traditional steam generator (water tube boiler with pipe coil and piston pump), JUMAG steam boilers work as follows:

  • The feed water in the pressure vessel is topped up by the boiler pump through the economiser depending on the water level in the pressure tank.
  • The burner is controlled depending on the steam pressure. Multi-lane flue gas routing transfers the heat from the flue gas through the pressure vessel to the water.
  • In the economiser, additional heat from the flue gas is transferred to the fresh water in the counter flow. The steam is dried in the inner system of the pressure vessel.

Do you have questions?

Your JUMAG team is happy to assist you!

About us

For more than 40 years, we have been developing, producing and selling oil and gas-fired steam boilers.

JUMAG steam systems represent efficiency and user-friendliness.


Jumag Dampferzeuger GmbH
Badener Str. 8a
69493 Hirschberg

+49 6201 84603-0



We are happy to advise you