GK 12 water heating fireplace insert

The GK12 is a classic firebox made of steel and cast iron, cast entirely in Gerkand. It has a nominal power of the water heater 10 kW, side opening door and high quality heat resistant glass. Simple and elegant design fits into any interior.

Quality Gerkand!


Technical information

Nominal power in kW12
Maximum power in kW15
Boiler nominal power in kW10
Overall dimensions (mm)695x400x720
Weight (kg)90
Efficiency (%)68
Hearth Dimension (L x P x H) mm630x300x250
Glass dimension ( L/H ) mm595х370х4
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 mm
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 (%)0.3136
Exhaust temperature310°C
Mass flow of smoke (g/s)19,15
Dust concentration discarded in 13% СО2>49,15 mg/m³
Wood consumption (kg/h)3,6
Minimum distance to adjacent materials: rear / side / front / down (mm)200 / 200 / 1200 /400
Depression chimney required12 Pa
StandardEN 13229
Heat exchanger volume ( litres)18
Optimum operating temperature of the heat exchanger (°C)60°С
Boiler connections (ø)1 ″

Product Benefits

  • heat resistant glass

  • Easy to use

  • nominal power of the water heater 10 kW

  • side opening of the door


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

Product variations

The water jacket fireplace GK 12 is also available in the following version:

Quick Request

Scroll to Top