Wood Log Fireboxes & Built-in Fireplaces

The Kratki closed-combustion built-in fireplaces and fireboxes are manufactured with 4mm thick steel and their combustion chambers are lined with a highly-refractory Acumotte ceramic. Each unit is designed and manufactured to conform to very strict European standards and regulations and is covered by a 5-year warranty. As a result, all the wood burning fireboxes and built-in fireplaces below are built to last.

Kratki JAS

Built-in | Wood burning | 10kW output

  • Heat output: 10kW
  • Heating Capacity: 150 – 250m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 82kg
  • Efficiency: 71%
  • CO Emissions: 0.15%
  • Flue pipe diameter: 150mm
  • WxDxH: 711 x 346 x 543
  • Primary and secondary combustion, with control.
  • Air wash glass cleaning system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Modern, minimalist design
  • A wide view of the fire.
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Kratki BASIA

Built-in | Wood burning | 17kW output

  • Heat output: 17kW
  • Heating Capacity: 235 – 390m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 128kg
  • Efficiency: 70%
  • CO Emissions: 0.15%
  • Flue pipe diameter: 200mm
  • A wide view of the fire.
  • Improved strength and performance with ceramic Acumotte lined combustion chamber and baffle plate.
  • Primary, secondary and tertiary combustion.
  • Air wash glass cleaning system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Modern, minimalist design.
  • Removable ash box for easy cleaning.
  • Flue damper control.
  • Adjustable feet for easy installation.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5-year warranty.
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Kratki ARKE 80

Built-in | Wood burning | Steel

  • Heat output: 16kW
  • Heating Capacity: 300 – 400m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 132kg
  • Efficiency: 75%
  • CO Emissions: 0.1%
  • Flue pipe diameter: 200mm
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Primary and secondary combustion, with control.
  • Air wash glass cleaning system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Removable ash box for easy cleaning.
  • Minimalist frame with blackened glass edge for modern design.
  • Thermostatically controlled fans provide forced ventilation up to 280m3 per hour.
  • Control for fan speed.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5 Year warranty.
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Kratki ARKE 95

Built-in | Wood burning | Steel

  • Heat output: 16.5kW
  • Heating Capacity: 240 – 415m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 154kg
  • Efficiency: 83%
  • CO Emissions: 0.1%
  • Flue pipe diameter: 200mm
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Primary and secondary combustion, with control.
  • Air wash glass cleaning system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Removable ash box for easy cleaning.
  • Minimalist frame with blackened glass edge for modern design.
  • Thermostatically controlled fans provide forced ventilation up to 280m3 per hour.
  • Control for fan speed.
  • Includes frame.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5-year warranty.
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Kratki ZIBI 12 LBS

BUILT-IN | WOOD BURNING | CORNER UNIT

  • Heat output: 14kW
  • Heating Capacity: 150 – 330m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 157kg
  • Efficiency: 80%
  • CO Emissions: 0.1%
  • Flue pipe diameter: 180mm
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Ceramic Acumotte for maximum intense heat output and attractive flame effect.
  • Primary and secondary combustion, with control.
  • Air-wash glass cleaning system.
  • The option of the complete hermetic exterior air intake system.
  • Heat resistant glass that withstands temperatures of 800°C.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5-year warranty.
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Kratki ZIBI 12 PBS

BUILT-IN | WOOD BURNING | CORNER UNIT

  • Heat output: 14kW
  • Heating Capacity: 150 – 330m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 157kg
  • Efficiency: 80%
  • CO Emissions: 0.1%
  • Flue pipe diameter: 180mm
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Ceramic Acumotte for maximum intense heat output and attractive flame effect.
  • Primary and secondary combustion, with control.
  • Air-wash glass cleaning system.
  • The option of the complete hermetic exterior air intake system.
  • Heat resistant glass that withstands temperatures of 800°C.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5-year warranty.
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Kratki NADIA 9

BUILT-IN | WOOD BURNING |  RECTANGULAR VERTICAL DOOR

  • Heat output: 11kW
  • Heating Capacity: 120 – 270m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 128kg
  • Efficiency: 80%
  • CO Emissions: 0.1%
  • Flue pipe diameter: 200mm
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Ceramic Acumotte for maximum intense heat output and attractive flame effect.
  • Primary and secondary combustion, with control.
  • Air-wash glass cleaning system.
  • The option of the complete hermetic exterior air intake system.
  • Heat resistant glass that withstands temperatures of 800°C.
  • A modern design with a minimalist frame and blackened glass edges.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5-year warranty.
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Kratki LUCY 15

BUILT-IN | WOOD BURNING | 18,5KW UNIT

  • Heat output: 18,5kW
  • Heating Capacity: 200 – 430m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 205kg
  • Efficiency: 81%
  • CO Emissions: 0.1%
  • Flue pipe diameter: 200mm
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Ceramic Acumotte for maximum intense heat output and attractive flame effect.
  • Primary, secondary and tertiary combustion, with control.
  • The option of the complete hermetic exterior air intake system.
  • Minimalist frame with blackened glass edges for modern design.
  • Moveable grate and ashpan for easy cleaning.
  • Heat resistant glass withstands temperatures of 800°C.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5-year warranty.
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Kratki AB/S

Freestanding | Wood burning | Steel

  • Heat output: 10.5kW
  • Heating Capacity: 160 – 275m3
  • Strength of materials: 4mm steel with Acumotte
  • Weight: 108kg
  • Efficiency: 78%
  • CO Emissions: 0.08%
  • Flue pipe diameter: 150mm
  • Dimensions WxDxH: 528 x 422 x 1052
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Primary, secondary and tertiary combustion, with control.
  • Panoramic glass with air wash glass cleaning system.
  • Direct air intake to combustion chamber for option of external fresh air system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Removable ash box for easy cleaning.
  • Meets requirements of EU Ecodesign 2022.
  • 5-year warranty.
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Kratki Nadia 14 LBSG

Built-in | Wood burning | Corner unit

  • Heat output: 17kW
  • Heating Capacity: 190 – 430m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 255kg
  • Efficiency: 80%
  • CO Emissions: 0.09%
  • Flue pipe diameter: 200mm
  • Rise-and-fall glass door – conveniently opening on a smooth pulley system.
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Ceramic Acumotte for maximum intense heat output and attractive flame effect.
  • Primary and secondary combustion, with control.
  • Weight setting on door allows for setting, on installation, of its automatic closing function.
  • Air wash glass cleaning system.
  • The option of complete hermetic exterior air intake system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Minimalist frame with blackened glass edge for modern design.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5 Year warranty.
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Kratki Nadia 14 PBSG

Built-in | Wood burning | Corner unit

  • Heat output: 17kW
  • Heating Capacity: 190 – 430m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 255kg
  • Efficiency: 80%
  • CO Emissions: 0.09%
  • Flue pipe diameter: 200mm
  • Rise-and-fall glass door – conveniently opening on a smooth pulley system.
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Ceramic Acumotte for maximum intense heat output and attractive flame effect.
  • Primary and secondary combustion, with control.
  • Weight setting on door allows for setting, on installation, of its automatic closing function.
  • Air wash glass cleaning system.
  • The option of complete hermetic exterior air intake system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Minimalist frame with blackened glass edge for modern design.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5 Year warranty.
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Kratki Nadia 14 G

Built-in | Wood burning | 17 kW

  • Heat output: 17kW
  • Heating Capacity: 190 – 430m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 281kg
  • Efficiency: 80%
  • CO Emissions: 0.09%
  • Flue pipe diameter: 200mm
  • Rise-and-fall glass door – conveniently opening on a smooth pulley system.
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Ceramic Acumotte for maximum intense heat output and attractive flame effect.
  • Primary and secondary combustion, with control.
  • Weight setting on door allows for setting, on installation, of its automatic closing function.
  • Air wash glass cleaning system.
  • The option of complete hermetic exterior air intake system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Minimalist frame with blackened glass edge for modern design.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5 Year warranty.
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Kratki NBC 8

Built-in | Wood burning | Three sided

  • Heat output: 10kW
  • Heating Capacity: 190 – 315m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 238kg
  • Efficiency: 83.5%
  • CO Emissions: 0.1%
  • Flue pipe diameter: 200mm
  • Dimensions WxDxH: 576 x 732 x 1470
  • 3-sided glass door slides up and down on smooth pulley system.
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Drop-in ceramic Acumotte firebox base for increased heating performance.
  • Primary, secondary and tertiary combustion with control.
  • Weight setting on the door allows for the automatic closing function (setting done during installation).
  • Air wash glass cleaning system.
  • Option of complete hermetic exterior air intake system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Removable ash box for easy cleaning.
  • Minimalist frame with blackened glass edge for modern design.
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Kratki NBC 10

Built-in | Wood burning | Three-sided unit

  • Heat output: 13kW
  • Heating Capacity: 235 – 390m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 275kg
  • Efficiency: 81%
  • CO Emissions: 0.1%
  • Flue pipe diameter: 200mm
  • The 3-sided glass door slides up and down on a smooth pulley system.
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Drop-in ceramic Acumotte firebox base for increased heating performance.
  • Primary, secondary and tertiary combustion, with control.
  • Weight setting on the door allows for the automatic closing function (setting done during installation).
  • Air wash glass cleaning system.
  • The option of complete hermetic exterior air intake system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Removable ash box for ease of cleaning.
  • Minimalist frame with blackened glass edge for modern design.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5-year warranty.
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Kratki NBU 11

Built-in | Wood burning | Three sided

  • Heat output: 14kW
  • Heating Capacity: 235 – 390m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 299kg
  • Efficiency: 83%
  • CO Emissions: 0.09%
  • Flue pipe diameter: 200mm
  • Dimensions WxDxH: 578 x 1050 x 1471
  • 3-sided glass door slides up and down on a smooth pulley system.
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Drop-in ceramic Acumotte firebox base for increased heating performance.
  • Primary, secondary and tertiary combustion with control.
  • Weight setting on the door allows for the automatic closing function (setting done during installation).
  • Air wash glass cleaning system.
  • Option of complete hermetic exterior air intake system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Removable ash box for easy cleaning.
  • Minimalist frame with blackened glass edge for modern design.
Get A Quote

Kratki MB 120 G

Built-in | Wood burning | 31 kW Unit

  • Heat output: 31kW
  • Heating Capacity: 280 – 700m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 396kg
  • Efficiency: 80%
  • CO Emissions: 0.1%
  • Flue pipe diameter: 200mm
  • 1,2m wide, rise-and-fall glass door – conveniently opening on a smooth pulley system.
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Ceramic Acumotte for maximum intensity heat output and attractive flame effect.
  • Primary, secondary and tertiary combustion, with control.
  • Weight setting on door allows for setting, on installation, of its automatic closing function.
  • Air wash glass cleaning system.
  • The option of a complete hermetic exterior air intake system.
  • Heat resistant glass withstands temperatures of 800°C.
  • Minimalist frame with blackened glass edge for modern design.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5-year warranty.
Get A Quote

Kratki LUCY 14 T

BUILT-IN | WOOD BURNING | DOUBLE SIDED

  • Heat output: 17kW
  • Heating Capacity: 200 – 415m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 189kg
  • Efficiency: 81%
  • CO Emissions: 0.1%
  • Flue pipe diameter: 200mm
  • Double-sided fireplace with a large view of the fire
  • The door opens on both sides.
  • Improved strength and performance with ceramic Acumotte lined combustion chamber
  • Ceramic Acumotte for maximum intense heat output and attractive flame effect
  • Primary, secondary combustion, with control
  • The option of the complete hermetic exterior air intake system
  • Heat resistant glass withstands temperatures of 800°C
  • Minimalist frame with blackened glass edge for modern design
  • Compliance with German BImSchV 2 standard
  • Compliance with Ecodesign 2022 EU standard
  • 5-year warranty
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Kratki MILA 16 TG

BUILT-IN | WOOD BURNING | DOUBLE SIDED

  • Heat output: 22kW
  • Heating Capacity: 210 – 550m3
  • Strength of materials: Steel with highly refractory ceramic Acumotte
  • Weight: 370kg
  • Efficiency: 71%
  • CO Emissions: 0.26%
  • Flue pipe diameter: 200mm
  • Double-sided rise-and-fall glass doors that conveniently open on a smooth pulley system.
  • Improved strength and performance with ceramic Acumotte lined combustion chamber.
  • Ceramic Acumotte for maximum intense heat output and attractive flame effect.
  • Primary, secondary combustion, with control.
  • Weight settings on the doors allow for setting (on installation) on the automatic closing function.
  • Air-wash glass cleaning system.
  • The option of the complete hermetic exterior air intake system.
  • Heat resistant glass that withstands temperatures of 800°C.
  • Minimalist frame with blackened glass edges for modern design.
  • Compliance with German BImSchV 2 standard.
  • Compliance with Ecodesign 2022 EU standard.
  • 5-year warranty.
Get A Quote

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