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K13 System

Combustion technology

Co-current flow furnace with moving grate, upstream recess and auger stoker

Furnace thermal output

900 to 6,800 kW


Ideal for ENplus pellets according to E14961-2, quality A1, A2 and B (industrial pellets)

Water content [% weight]: ≤ 10

Size: Length 3,15 to 40 mm, diameter 6 and 8 mm

Maximum ash content [% weight]: 3


  • Mechanical de-ashing OR automatic ash discharge to reduce operational maintenance workload and thus long run times between maintenance shut-downs
  • Applicable for all boiler systems (water, steam and thermal oil)

Supplementary equipment

  • Version also available for the mixing of specified agrarian biomass (miscanthus, corncobs, etc.) upon customer request

Your benefits by Kohlbach

  • Pellet combustion in industry-standard configuration for use with ENplus pellets and industrial pellets and wood chips for greater independence from the fuel market
  • Electrical moving grate, primarily for varying pellet qualities or pellet qualities that deviate from the standards
  • No arches thus preventing ash deposits and significantly reducing maintenance workload
  • Single or multiple auger feed for optimum infeed dosage, even with very fine grain fuel material
  • Compact furnace for optimised efficiency and lowest emissions
  • Reliable nominal power with all usable fuels and degrees of water content
  • Reliable long lifespan of combustion chamber thanks to full refractory lining and grate frame construction being cooled with boiler water and combustion chamber cooling
  • Rapid and simple installation thanks to pre-assembled modules