Boilers with feeder for coal

Sigma E

Zobacz produkt w 360°
gwarancja_5_lat.jpg 5 years warranty for heat exchanger tightness, 2 years for the remaining components and efficient operation of boiler;
stal.jpg Heat exchanger made of certified high-grade steel;
sprawnosc sigma e High thermal efficiency in the range from 90,0 to 90,7% due to increased heat recovery from flue gases;
NZ version - adapted for installation in closed system, reinforced design, built-in cooling coil - extra paid option. NZ version available in power range 12-48 kW;
NZ NZ version - adapted for installation in closed system, reinforced design, cooling coil pipe installed - extra paid option;
palnik_retortowy Combustion chamber with highly effective new-generation retort burner (invention submitted to the Patent Office of the Republic of Poland);
ceramika.jpg Ceramic catalysts stabilising combustion process;
czujnik_pokrywy.jpg Sensor indicating opening container’s cover;
Coil of endless screw in the fuel feeder made of one piece;
Change of direction of boiler door’s opening (not applicable to internal glow doors);
adaptive_control.jpg ADAPTIVE CONTROL control - adjustment of boiler operation based on air flow through the heat exchanger;
abm Energy-saving motoreducer with high efficiency with automatic reverse in case of locking of fuel feeder;
system_automatycznego_czyszczenia System for mechanical cleaning of heat exchanger;
Pressure equalisation system in fuel container;

Specification / boiler type


36 48 69

Power range


10,8-36 14,4-48 17,9-69

Heating area


4,3 5,2 6,5

Area of heated rooms 1





Capacity of fuel container 2

kW ~191 ~266 ~258

Nominal thermal efficiency

% 90,1 90,9 90,0

Energy efficiency class

- B B B

Max. permissible work pressure


1,5 opened sytem;

2,5 closed system

Required flue gas draught


0,31 0,34 0,34
Water temperature on supply max. °C 65/80

Boiler weight 3

kg 657 728 880

Boiler water tank capacity


170 200 230

Chimney section

cm x cm

18x18 22x22 24x24

Chimney section

Ø mm

200 250 270

 Minimum chimney height





Supply and return socket diameter


G1 ½”

 Release socket diameter


178 194 245





1 Maximum area of heated rooms estimated for unit heat demand q=80 W/m2.

2 Fuel tank capacity for bulk density of eco-pea coal equal to 0,8 kg/dm3.

3 Boiler weight depends on its additional equipment.


Height of boiler can be additionally adjusted by means of provided levelling legs. The regulation of legs varies from 38 to 50 mm.


ATTENTION! When ordering the SIGMA E boiler the customer should specify on which side the container should be located (right or left).


Additional equipment components shall be added during ordering of the boiler because there is no possibility of installation in the future.

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