B³ Keramik

Design: Sebastian Herkner

The heat sorting ceramic stove from Bullerjan was designed by the internationally acclaimed designer Sebastian Herkner.
Despite its – for its modest size – considerable overall weight of 217 kg, Sebastian Herkner’s design gives the B³ a light and elegant appearance. The slender but extremely robust cast-iron pedestal contributes to this effect. The ceramic weighs 110 kg and as such provides enough additional mass for storing the fire’s heat for a considerable time.
Due to its deferred heat release, its 3.9 to 6 kW output range, and its small footprint, the B³ is excellently suited to small or particularly well insulated rooms. But it also stands out as additional heating and a beautiful design statement in larger living areas.
Along with the glaze colours which Sebastian Herkner specially selected for the B³ Keramik, we offer a wide range of other surfaces. With the appropriate notice we can often even produce colours to individual wishes.



  • Elegant timeless design by Sebastian Herkner
  • Compact radiation stove with significant storage capacity
  • Nominal heat output of 5 kW without catalytic converter and 9 to 6 kW with catalytic converter
  • Highly economical through extremely high efficiency factors of up to 88 percent
  • Fireclay filled storage tiles hand made in Germany
  • Individual design options through wide choice of ceramic glazes
  • Stable cast-iron feet with four height adjusters for levelling on uneven floors
  • Small footprint: W: 52 cm, D: 37 cm, H: 140 cm
  • Flue connection either at the rear or on the top


  • Self-closing and -locking door with large viewing window
  • Effective integrated window washing system
  • Intuitive control of the fire using a precisely coordinated inflow of air
  • Extremely solid combustion chamber of 4 mm thick, edged steel
  • Firebox lining made of high-quality vermiculite and special robust fireclay
  • Potential wear parts, in part of heat-resistant premium steel, can be replaced even after years if necessary
  • Warranty extension (total 5 years) to the stove body on registering the product
  • Comprehensive service offering by the Bullerjan specialist dealers or Bullerjan customer service


  • Optional complete independence of room air (Raumluftunabhängig RLU) in accordance with DIBt at no extra cost, making it principally suitable for low energy and passive Please always clarify conditions in advance with your chimney sweep.
  • Optional fitting with ChimCat® catalytic converter (can also be easily retrofitted) extends the clean output range from 5 kW to 9 to 6 kW. This in combination with significantly reduced emissions levels make this option the right choice for the environment.

ModellB³ Keramik
catalytic converter
B³ Keramik
with catalytic converter
B² Keramik
with catalytic converter
Performance5,0 kW3,9 kW6,0 kW
Depth36,8 cm36,8 cm36,8 cm
Width52,0 cm52,0 cm52,0 cm
Height139,8 cm139,8 cm139,8 cm
Weight with equipment
ceramic+ (heat storage)
217,0 kg217,0 kg217,0 kg
Depth of combustion chamber25,5 cm25,5 cm25,5 cm
Exhaust gas nozzleØ 15 cmØ 15 cmØ 15 cm
Air supply nozzleØ 10 cmØ 10 cmØ 10 cm
Height centre exhaust
gas nozzle
114,3 cm114,3 cm114,3 cm
Height centre air
supply nozzle
51,0 cm51,0 cm51,0 cm
Exhaus gas mass flow rate
(nominal heat output)
4,11 g/s4,66 g/s5,13 g/s
Delivery pressure12 Pa12 Pa12 Pa
Mean exhaust gas temperature223 °C252 °C277 °C
CO content
(13 % O 2 )
0,094 Vol.-%0,034 Vol.-%0,021 Vol.-%
CO content (13 % O 2 )
1172,9 mg/m³419,9 mg/m³260,0 mg/m³
NOx (13 % O 2 )79,3 mg/m³90,0 mgm³95,4 mg/m³
Dust (13 % O 2 )36,9 mg/m³29,9 mg/m³28,9 mg/m³
Efficiency88 %84 %86 %
Safety distance to combustible material:
Side15 cm15 cm15 cm
to the rear30 cm30 cm30 cm
Front80 cm80 cm80 cm
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