Prizma 12 water heating fireplace insert

Prisma 12 is a firebox with a modern look and rated power of the water heater 8 kW. It is made of steel and cast iron, cast in Gerkand. Easy to use. It is characterized by a side opening door and glass, which have a prismatic shape and allow you to observe the fire from three different sides.
Beautiful and practical warming for your home.


Technical information

Nominal power in kW12
Maximum power in kW15
Boiler nominal power in kW8
Overall dimensions (mm)560/470/650
Weight (kg)88
Efficiency (%)70
Hearth Dimension (L x P x H) mm480 x 260 x 360
Glass dimension ( L/H ) mm120 х 299 х 120 x 275 x 4
Smoke exit positionUp
Chimney (mm)150
Maximum log size (mm)420
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 doorSteel
Type of handleCast iron
Emissions of CO (%)0.3136
Exhaust temperature280°C
Mass flow of smoke (g/s)10,20
Dust concentration discarded in 13% СО2>48,22 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)12.5
Optimum operating temperature of the heat exchanger (°C)60°С
Boiler connections (ø)1 ″

Product Benefits

  • prismatic door shape

  • nominal power of the water heater 8 kW

  • 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 water jacket fireplace Prizma 12 is also available in the following version:

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