Prizma 16 water heating fireplace insert

Prisma 16 offers you an elegant and contemporary design. The prismatic shape of the door and the high-quality heat-resistant glass allows you to observe the beauty of the fire from three different sides. It is efficient and easy to use with 11 kW nominal power of the water heater and quick access to the ashtray.

Quality from Gerkand!


Technical information

Nominal power in kW16
Maximum power in kW21
Boiler nominal power in kW11
Overall dimensions (mm)750x490x800
Weight (kg)135
Efficiency (%)74
Hearth Dimension (L x P x H) mm630 x 330 x 340
Glass dimension ( L/H ) mm140 х 420 x 140 x 370 х 4
Smoke exit positionUp
Chimney (mm)200
Maximum log size (mm)580
Finishing materials / thickness (mm)Steel, 4mm
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 doorSteel
Type of handleCast iron
Emissions of CO (%)0.22
Exhaust temperature310°C
Mass flow of smoke (g/s)11,85
Dust concentration discarded in 13% СО2>53,8mg/m³
Wood consumption (kg/h)4,8
Minimum distance to adjacent materials: rear / side / front / down (mm)200 / 200 / 1200 /400
Depression chimney required12 Pa
StandardEN 13229
Heat exchanger volume ( litres)23
Optimum operating temperature of the heat exchanger (°C)60°С
Boiler connections (ø)1 ″

Product Benefits

  • prismatic door shape

  • 11 kW nominal power of the water heater

  • heat resistant glass


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

Product variations

The firebox is also available in the following versions:

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