If a steam amount greater than 560 kg/h is required, or if an almost 100% supply reliability of steam is required through redundancy, we recommend a multiple unit steam system. To do this, several steam boilers are set up in parallel and use a common water supply and a common blow down vessel. When compared with larger steam boilers, multiple unit steam systems are thoroughly competitive. Would you like an individualised sample calculation? Request one here.

  • For larger steam demands - and still cost-efficient
  • Expandable steam output; the system grows with your needs
  • Supply safety through redundant steam boilers
  • Demand-oriented steam supply for fluctuating steam consumption
  • An unlimited number of connected JUMAG steam boilers is possible
  • Capacity is adjusted to demand via a boiler sequence circuit
  • Multiple unit systems also do not require approval and monitoring

How it works

  • For multiple unit systems, several steam boilers are set up in parallel.
  • The control of the steam boilers can be set on demand.
  • Only the capacity that is currently needed is being provided.
  • To achieve an even use of the steam boilers, the priorities are regularly re-assigned.


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