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Boiler Type BT

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Wood gasifier boiler with two pressure blowers and lambda sensor controller (BT)

The KÜNZEL wood gasifier boiler BT is offered in different power levels ranging from 23 to 31 kW. It is suitable for single- or two-family homes as well as for small- to medium-sized commercial and office buildings and can be used alone or in combination with other heat generators. Its particularly finely tuned combustion air supply is particularly advantageous when dry wood scraps are primarily burned, for example in joinery workshops.

The BT in brief:

  • For untreated logs and scrap wood with a length of approx. 1/3 to 1/2 meter
  • Space-saving, cost-efficient compressed air blower for primary and secondary combustion air
  • Modulating operational mode: Boiler power is automatically regulated
  • Particularly high annual utilization level and long service life
  • Good combustion behavior even with problematic combustion properties
  • Easy installation due to compact size and flexibly adjustable components
  • Ceramic-free burner construction
  • Easy cleaning and maintenance through good accessibility and easy replacement of boiler parts
  • Different controllers are available in our range of products
  • Standard programmable automatic, electrical ignition
  • Emissions far below the legally prescribed values in Germany
  • High level of efficiency of up to 92%
  • Different system combinations possible (oil, gas, solar, pellet, electrical, heat pumps, already existing heating systems…)

Control through lambda processor control panel 621
with buffer accumulator regulation

  • Separate, stepless speed regulation of the two pressure blowers
  • Particularly good combustion results through fuzzy logic control
  • Automatic adjustment of the boiler power depending on the heat requirements
  • Buffer monitoring, burnout detection, safety features in the case of potential excess boiler temperature
  • Error message in the event of a potential sensor failure
  • Memory for callable statistic values
  • Touchscreen, full text menu
  • SD card slot for software updates
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