GK 13 firebox with air jacket

The firebox GK13 has a clean design and is made of steel and cast iron, cast in Gerkand. With its 11 kW nominal power of the air jacket, the GK13 offers comfort and warmth at an affordable price. The high-quality heat-resistant glass lets you enjoy touch with live fire.

Technical information

Nominal power in kW16
Maximum power in kW20
Air jacket nominal power in kW11
Overall dimensions (mm)695 x 450 x 1120
Weight (kg)135
Efficiency (%)72
Hearth Dimension (L x P x H) mm630 x 300 x 370
Glass dimension ( L/H ) mm595 х 370 х 4
Smoke exit positionUp
Chimney (mm)180
Maximum log size (mm)580
Finishing materials / thickness (mm)Steel, 4mm and cast iron
Type of cast ironGray Cast iron
Thickness of cast iron (mm)From 5 to 12
Gasket sealing materialsISO GLASS
Glass resistance and typeCeramic 750°C
Surface coatingHeat resistance to 600°C
Type of doorcast iron
Type of handlecast iron
Emissions of CO (%)0.22
Exhaust temperature290 C
Mass flow of smoke (g/s)11,9
Dust concentration discarded in 13% СО2>57,4 mg/m³
Wood consumption (kg/h)5
Minimum distance to adjacent materials: rear / side / front / down (mm)200 / 200 / 1200 /400
Depression chimney required12 Pa
StandardEN 13229
Air flow850 m3/h
Fan powerMin 80w/h max 120w/h
Number of nozzles6 on the upper side
Air duct diameter100 mm

Product Benefits

  • heat resistant glass

  • Easy to use

  • nominal power of the air jacket 11 kW


  • 3 years warranty
  • Hand welded seams and assemblies
  • Cast iron foundry into the Gerkand factory
  • Business and individual high value service

Product variations

The GK 13 fireplace with air jacket is also available in the following version:

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