Steam boilers

Steam boilers in diverse formats and configurations have been a Callens speciality for more than 55 years. By now, we are the proud design, installation and maintenance partner for more than 1,000 steam systems that guarantee a reliable process temperature, day and night.

Contact us

Steam boilers as part of a customised system

No two steam systems are alike. Just like your production environment. For that reason, all our steam systems are fully customised with quality and sustainability in mind.

Stoomketel aardappelproducten Callens

Our range of industrial steam boilers

We have the most extensive range of steam generators to fire-tube boilers to ensure the reliability and security of your production process: with an output of 25 kg/h to 55,000 kg/h saturated steam.

Vlampijpketel Callens

Fire-tube boilers

  • Output: 150 kg to 55,000 kg steam/h
  • Operating pressure: 0.5 to 30 barg
  • Fuel: (bio)gas or heating oil
Elektrische stoomketels Callens

Electric boilers

  • Output: 25 kg to 10,000 kg steam/h
  • Operating pressure: 0.5 to 30 barg
Afgassenketels Callens

Waste heat boilers

  • Output: up to 25,000 kg steam/h
  • Operating pressure: 0.5 to 30 barg

Rental steam boilers

Even if you’re urgently or temporarily in need of steam, you will find a solution in our offer. We continuously carry a stock of steam boilers from which we select the one best suited to your needs and fit it with all the auxiliary equipment. Our technicians can have your plant fully operational again within 24 hours.

Discover our rental service

Callens stoom huurketel

Steam system maintenance and assistance

We don’t only assist you with engineering and design but remain by your side long after, 24/7. Our dedicated service team takes the burden off your shoulders with timely and meticulous maintenance. Besides, the Callens crew love nothing better than getting to the bottom of any unforeseen malfunction. 

Read more about our services

Callens onderhoud industriële stoomketel


To give you an idea of the extent of our expertise in steam boilers, we thought it might be nice to offer you a selection of our most impressive projects. Hot off the press!