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The technology of KÜNZEL-wood gasifier boilers

All KÜNZEL wood gasifier boilers are particularly light and compact. Handling is also facilitated through many practical details such as:

  • Carry bushings and lifting brackets under the cover for easy transport into buildings
  • All boilers can be transported through doors that are 80 cm wide
  • Standard automatic electrical ignition
  • The alternating smoke connection is easy to adapt to structural conditions.
  • Different blower types (pressure or ID fan) available, in order to be able to optimally adapt it for the different structural conditions of the chimney
  • Many extras and components such as automatic ignitions, blower type, control system can also be replaced or updated later on
  • Combinations with other heating systems (oil, gas, solar…) possible
  • Installation in already existing heating systems usually possible without incident
  • The most important spare parts can be replaced by the operator without incident
The fill door opening
A lot of room for easy filling
Swirl chamber burner
Particularly effective
and ceramic-free
Combustion chamber shell
High-quality, fire-resistent stainless steel 
Easily accessible
Space-saving pressure blower and automatic ignition
ID-fan
Recommended for problematic
chimney flues
Alternating smoke connection
Installation alternatives for different structural conditions



Wood gasifier boiler with pressure blower (Type HV) ->
Wood gasifier boiler with ID fan (Type HV-S) ->
Wood gasifier boiler with lambda sensor controller (Type BT) ->
Double boiler wood-oil/gas (Type HV-RL) ->

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