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DWS

5th grade: 12, 17, 22 kW
Ecodesign: 12, 17, 22 kW
Fuel: hard coal, pea size, 20-25 mm
Standard equipment: draft regulator, NZ version for a closed system
Optional equipment - for an additional fee: leveling feet, a set consisting of an exhaust fan and an ST-880 controller

3 years warranty for the tightness of the heat exchanger, 2 years for other elements and efficient operation of the boiler - provided that it is installed in accordance with the boiler operation and maintenance manual;

Heat exchanger made of certified, high-quality steel;

High thermal efficiency ranging from 89.8 to 91.4% thanks to increased heat recovery from exhaust gases;

As standard, the boiler is prepared for installation of a set consisting of an exhaust fan and a controller. Paid option according to the additional equipment price list;

Smoke removal system for the combustion chamber;

Mechanical regulation of the combustion process using a knob in the ash pan door and a draft regulator;

The boiler is factory equipped with a thermostatic draft regulator;

Nozzle reducing exhaust emissions (UP RP protection);

Large charging chamber;

Secondary air supply regulation;

The boiler is suitable for installation in a closed system, provided that security measures are installed in accordance with the boiler operating instructions;

DWS – A hopper boiler intended for burning hard coal of the pea type, meeting the criteria of Class 5 and Ecodesign.

 

  • Reinforced boiler structure based on the multi-pass structure of flue gas channels.
  • The horizontal and vertical arrangement of the boiler exchanger guarantees optimal thermal efficiency of 90%.
  • The fireplace is covered with ceramics made of refractory material – ceramic catalysts.
  • Gravity air supply system to the boiler, divided into: primary and secondary air supply.
  • Nozzle reducing exhaust emissions (protected by the Polish Patent Office).
  • Large charging chamber. Easy to clean.
  • Suitable for installation in a closed system, provided that fittings and protections are used to dissipate excess thermal power, in accordance with the boiler documentation.
  • It is possible to install an additional control set consisting of a controller and an exhaust fan*
  • Required operation of the boiler with an accumulation tank (so-called buffer)**.

* Option additionally paid. Additional equipment must be ordered at the ordering stage.

** The minimum capacity of the accumulation tank should be calculated in accordance with the PN-EN 303-5:2012 standard.

 

 

Boiler specification/type J.m. 12 17 22
Fuel
coal
coal
coal
Min. safe capacity of the accumulation tank
l 600 900 1200
Heating surface m2 2,4 2,7 3,1
Area of ​​heated rooms
m2 to 150 to 210 to 275
Fuel tank capacity kg ~19 ~23 ~31
Optimum thermal efficiency
% 90,1 89,8 91,4
Energy efficiency class
B B B
Max. permissible working pressure bar 1,5 1,5 1,5
Required exhaust gas draft
mbar 19 21 23
Supply water temperature min/max. °C 65/90 65/90 65/90
Boiler weight
kg ~379 ~411 ~464
Boiler water capacity l 80 87 98
Cross-section of the chimney
cmxcm 14×14 14×14 16×16
Cross-section of the chimney
Ø mm 160 160 180
Minimum height of the chimney m 5 5,5 6
Diameter of the supply/return connection cal 1 ½ ’’ 1 ½ ’’ 1 ½ ’’
Drain port diameter cal ½ ’’ ½ ’’ ½ ’’
Flue diameter mm 159 159 178
Height
mm 1010 1010 1010
Width
mm 645 695 745
Depth
mm 1335 1335 1415

As standard, the boiler is prepared for installation of a set consisting of an exhaust fan and a controller.

Paid option according to the additional equipment price list.

Spain
Michał Stachera
Export Manager Phone: +48 512 013 834
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Export Manager Phone: +48 512 013 834
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Export Manager Phone: +48 669 668 599
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Export Manager Phone: +48 783 783 218
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Export Manager Phone: +48 512 013 834
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