In Leinefeld-Worbis, in the centre of Germany, three wood waste-fired boilers of each 4 MWt have been realised in 2014. About 35,000 MWh is produced annually from 16,000 tonnes demolition wood with A2 classification (including paint, construction foam, plastic insulations and other residues which are extracted before infeeding) to provide district heating in the area of Leinefelde-Worbis.

A well-planned maintenance program avoids unnecessary down time or costly repairs. When one of the three boilers requires maintenance, the other two boilers remain active. This allows the plant to be as efficient as possible. This project is part of a larger renewable energy project to optimise the district heating supply in Leinefelde-Worbis and create a regenerative and highly efficiency energy production facility.


Start-up / first fire 2014


Input 16,000 tons demolition wood with A2 classification, moisture 20-45%, chlorine level 600 mg/kg, caloric value 14 MJ/kg, dust content 5%, melting point 1100 cº.
Wood supply system Bunker, moving floor, belt conveyor and hydraulic push infeeder
Fire tube hot water boiler 3 x 4 MWt
Efficiency 86%


  • High efficiency;
  • High availability;
  • Effective, dedicated, flue gas cleaning for each boiler;
  • 3x Multicyclone;
  • 3x Bag house filter;
  • Combined collection of bottom ash;
  • Combined collection of fly ash.

More information

Do you want to receive more information about this project or you want to learn more about our biomass boilers? Don’t hesitate to contact us through [email protected] or call us at +31 (0)53 – 460 90 80.