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 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, m² *

B class premises 602…1470
C class premises 322…700

Fuel used

wood logs **

Efficiency (firing wood logs), %

82

Combustion chamber volume, dm³ (l)

467

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

4…8

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

 

* Energy efficiency according STR 2.01.02:2016.
** It is also possible to use wood waste, sawdust and peat briquettes.
   It is not recommended to burn firewood with a moisture content greater than 25%.

*** The burning time of the fuel boiler depends on the type of fuel, humidity, 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

 

A part of recommended boiler connection circuit, execution of which ensures long-term boiler operation,
  prevents from condensate formation inside the boiler.
Circuit shows no auxiliary technology equipment (valves, expansion vessel etc.)

© 2016 UAB KALVIS
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