Central heating solid fuel boiler KALVIS K-2-20 (NAUJAS) 20kw

1,550.00

 

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Description

Kalvis K-2-20

  • Multipurpose bottom combustion solid fuel boiler
  • High efficiency (82%)
  • Large fuel load (136 dm³). Logs length 0,4 m
  • Fuel is loaded from the front or top
  • Automatic adjustment of boiler temperature
  • Secondary air supply
  • Secondary burning chamber with refractory concrete catalyst
  • Smoke exhaust, ignition and draught dampers
  • Fire grates shaking mechanism
  • Heat exchanger cleaning from both boiler’s sides
  • Emergency cooling coil
  • Possibility to mount electric heating element
  • Possibility to install smoke exhauster
  • Possibility to mount pellets burner
  • Housing inner wall steel plate thickness – 6 mm
  • Warranty for boilers frame 4 years
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Technical Information

Description

Characteristic

Nominal output, kW

20

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

150…250

Fuel used

wood logs*

Efficiency (firing wood logs), %

82

Combustion chamber volume, dm³ (l) 136

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

16

Logs size, not greater than, cm

40

Water volume in the boiler, l

72

Flue diameter, mm

Ø160

Minimum chimney draught, Pa

19

Overall dimensions, HxBxL, mm

1350x770x1210

Mass (brutto), (± 10 %), kg

360

 

* 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.

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