JUMAG steam boilers combine the advantages of a compact quick steam boiler with those of a robust large capacity steam boiler.

  • Outputs from 100 kg/h to 560 kg/h
  • Higher output as multiple unit system possible, e.g. >2000 kg/h as a four-unit system
  • Oil or gas-heated with standard industrial burners
  • Not subject to approval in Germany and many other countries
  • No monitoring requirement in Germany by ZÜS (TÜV) (up to boiler type DG560), also for multiple unit systems
  • Robust pressure vessel in the design of a small shell boiler, no pipe coil
  • Circulation pump integrated as boiler pump
  • Easy to operate, highly effective touch screen control – via JUMAG Connect Connection to PC, mobile end devices or control centres possible


  • Highly cost-effective as a result of high efficiency.
  • Condensing boiler technology with use of the exhaust condensation optional, with firing efficiencies in excess of 100%.
  • Three to four-strand flue gas routing
  • Low water entrainment
  • Energy-efficient JUMAG accessories for minimal loss


Robust and low-maintenance

  • Pressure vessel in accordance with water chamber principle with up to 9 mm material thickness
  • No pipe coil / no water tube boiler principle
  • Low-maintenance circulation pump
  • High operational reliability as a result of the simple and compact overall design
  • High quality standards due to the use of standard industrial parts


  • Not subject to approval in Germany and many other countries
  • Simple operation with self-explanatory full text touch-screen control in many languages
  • Adjustable manually via automatic timer or control centres (optional)
  • Good accessibility for maintenance
  • Alternatively with automatic blow down or desalination
  • 365 days, 24 h accessibility of our customer service

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.

Technical data

Boiler type DG160 DG260 DG360 DG460 DG560 FLO
PED 2014/68/EU Kategorie III PS * V < 1.000 PS * V < 3.000
Steam output up to 160 kg/h
(2,6 kg/Min.)
260 kg/h
(4,3 kg/Min.)
360 kg/h
(6,0 kg/Min.)
460 kg/h
(7,6 kg/Min.)
560 kg/h
(9,3 kg/Min.)
1060 kg/h
(17,7 kg/Min)
Heat load 110 kW 175 kW 245 kW 315 kW 400 kW 760 kW
Heat output 105 kW 170 kW 235 kW 300 kW 380 kW 720kW
Max. operating pressure 13 barÜ (discharge pressure of the safety valve) 13 barÜ
Working pressure 6 bis 11 barÜ (lower pressures possible via JUMAG pressure reduction station) 11 barÜ
Heat up time in min 5 8 10
Max. oil throughput (11,8 kWh/kg) 9,3 kg/h 14,8 kg/h 20,7 kg/h 26,7 kg/h 33,9 kg/h 64,4 kg/h
Max. gas flow rate (10,35 kWh/m3) 10,6 m3/h 16,9 m3/h 23,7 m3/h 30,4 m3/h 38,6 m3/h 73,4 m3/h
Power supply 400 V / 50 Hz
Power supply value 2,4 kW 3,2 kW 3,2 kW 4,0 kW 4,0 kW 6,0 kW


Legend dimensions (exemplary illustration DG560)


Boiler type DG160 DG260 DG360 DG460 DG560 FLO
Total height A 1.521 mm 1.764 mm 2049 mm 2.044 mm 2.142 mm 2.620 mm
(oil burner)
2.794 mm
(gas burner)
Total width B 815 mm 829 mm 936 mm 1.130 mm
Total depth C1
(at backwards bend)
1.411 mm 1.631 mm 1.756 mm 2.033 mm
Total depth C2
(at bend turned by 90° or straight up)
1.206 mm 1.370 mm 1.484 mm 1.753 mm
Charging height D 1.130 mm 1.368 mm 1.568 mm 1.565 mm 2.071 mm
Charging depth E
812 mm 856 mm 981 mm 1.196 mm
Height F exit flue gas 795 mm 1.437 mm 2.234 mm
Minimum height setup space G 1.771 mm 2.014 mm 2.299 mm 2.294 mm 2.392 mm 3.271 mm
Minimum width setup space H 1.315 mm 1.329 mm 1.436 mm 1.630 mm
Minimum depth setup space I1
(at backwards bend)
2.081 mm 2.301 mm 2.426 mm 2.703 mm
Minimum depth setup space I2
(at bend turned by 90° or straight up)
1.876 mm 2.040 mm 2.154 mm 2.423 mm



We have compiled a number of documents in our Download Centre that provide you with important information about JUMAG's products and services.

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