Central heating solid fuel bottom combustion boiler K-2-70

  • Multipurpose bottom combustion solid fuel boiler
  • High efficiency (82%)
  • Large fuel load (467 dm³). Logs length 0,5 m
  • Fuel is loaded from the front or top
  • Automatic adjustment of boiler temperature
  • Secondary air supply
  • Secondary burning chamber with refractory concrete catalyst
  • Ingnition and draught dampers
  • Removable turbulators
  • Heat exchanger cleaning from both boiler’s sides
  • Possibility to install an emergency cooling coil
  • Possibility to install smoke exhauster
  • Possibility to mount pellets burner
  • Housing inner wall steel plate thickness – 6 mm
  • Warranty for boilers frame 4 years

Description

Characteristic

Nominal output, kW

70

Heated area (when thermal resistance ratio of the building is 2,5), m²

450…800

Fuel used

wood logs*

Efficiency (firing wood logs), %

82

Combustion chamber volume, dm³ (l)

467

Fuel load combustion duration, up to, h.**

16

Logs size, not greater than, cm

50

Water volume in the boiler, l

198

Flue diameter, mm

Ø250

Minimum chimney draught, Pa

35

Overall dimensions, HxBxL, mm

1660x985x1675

Mass (brutto), (± 10 %), kg

1066

 

* Coal, pieces of waste wood, peat and saw dust briquettes may be used as a substitute fuel. It is not recommended to fire wood logs with moisture content exceeding 25 %.
** The duration of fuel load burning depend on fuel type, moisture content, outdoor temperature and other factors.

  1. Emergency cooling coil place
  2. Ignition damper
  3. Flue and draught damper
  4. Turbulators
  5. Secondary air supply inlet
  6. Soot cleaning covers
  7. Burning chamber’s refractory bricks
  8. Ashtray’s drawer
  9. Fire grates
  10. Thermometer and manometer
  11. Draught regulator

Recommended solid fuel boiler room installation diagram (for closed heating system) with a four way mixing valve, boiler, solar energy collector and an expansion tank with a membrane. Boiler has an emergency cooling coil installed.

Recommended solid fuel boiler room installation diagram (for opened heating system) with three way mixing valves, boiler, solar energy collector and an open expansion tank.

 

Recommended solid fuel boiler room installation diagram (for opened heating system) with three way mixing valves, boiler, solar energy collector, accumulation tank and an open expansion tank.

Recommended solid fuel boiler room installation diagram (for closed heating system) with three way mixing valves, boiler, solar energy collector, accumulation tank and an expansion tank with a membrane.

* – Installation equipment shown on the diagram is not included with the boiler. When utilizing a chosen installation diagram it is necessary to install all of the equipment provided on the diagram.

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