Boilers with feeder for coal


Sigma is a boiler that is very convenient in use, is equipped with retort burner and is intended for combustion of eco pea coal. The highest quality of materials used for manufacturing of the burner ensure its long-term operation, while suitable design of the heat exchanger ensures optimum fuel combustion conditions, high efficiency and low pollutant emissions. Intuitive and user-friendly controller with colour touch display, with adjustable angle of inclination allows simple programming of the equipment and is responsible for control of system’s operation. Boiler meets the power-emission requirements of class 5 acc. to  PN EN 303-5:2012.

** Boiler in DiR version with additional grate for manual combustion - DOES NOT MEET THE CO-FINANCING REQUIREMENTS. Ordering DiR boiler please mark DiR on the order - deflector and grate

pik_5 klasa.jpg 5 acc. to the standard 303-5:2012
5 lat gwarancji na szczelność wymiennika ciepła, 2 lata na pozostałe elementy i sprawne działanie kotła 5 years of warranty for heat exchanger tightness, 2 years for the remaining components and efficient operation of boiler;
wymiennik ciepła wykonany z atestowanej stali kotłowej /gat. P265GH/ o grubości 6 mm z hut Arcelor Mittal Poland S.A. heat exchanger made of certified boiler steel /grade P265GH/ of 6 mm thickness from steel mills of Arcelor Mittal Poland S.A.
sterownik K1v2 z kolorowym panelem dotykowym obsługującym 4 pompy /c.o.,c.w.u., obiegowa, podłogowa/. Możliwość obsługi zaworu mieszającego, sterowanie poprzez GSM lub Internet*, regulowany kąt położenia panelu sterującego controller K1v2 with colour touch panel servicing 4 pumps /central heating, hot utility water, circulation, floor pump/. Possibility to operate mixing valves, control using GSM or INTERNET*; adjustable angle of control panel
wysoka sprawność cieplna sięgająca 88% dzięki zwiększonemu odzyskowi ciepła ze spalin; high thermal efficiency reaching 88% thanks to increased heat recovery from flue gases
 *przystosowany do montażu w układzie zamkniętym
*adapted for installation in closed system
 śruba podajnika paliwa wykonana w całości z jednego elementu
screw of fuel feeder made of one piece
duża komora spalania z wysokoefektywnym palnikiem retortowym large combustion chamber with highly effective retort burner

(*) - extra payable equipment, installed on Customer’s request


Specification / boiler type Unit 16 20 24 36
Power range kW 4,8-16 6-20 7,2-24 10,8-36 14,4-48
Heating area m2 2,1 2,3 2,4 3,8 4,7
Area of heated
m2 to 250 to 270 to 290 to 400
to 520
Capacity of fuel container kg  ~165  ~165  ~165  ~191  ~266
Optimum thermal efficiency % ~87-88,5
Max. permissible operation
bar 1,5
Required flue gas draught Pa 24 26 28 31
Water supply temperature
oC 65/80
Boiler weight ****
kg 449
Boiler water tank capacity l 97
Chimney section cmxcm 14x14 14x14 15x15 17x17 19x19
Chimney section Φ mm 160 160 170 195 225
Minimum chimney height m 6 7,5 7 9
Width mm 1220 1220 1220 1320 1320
Depth mm 1080 1170 1170 1259 1259
Height mm 1365 1365 1420 1480 1700
Diameter of supply and return Dn  
G1 ½”
Flue size mm 159 178 178 178
Supply V/Hz ~230/50
Maximum power consumption W 123 123 123 140 140
Height to bottom edge
of flue
mm 900 882 1030 1077 1290

* Maximum area of heated rooms estimated for unit heat demand q=80 W/m2..
** Fuel tank capacity for charging density 0.8 kg/dm3
*** Height of boiler can be additionally adjusted by means of provided levelling legs. Legs regulation varies from 38 to 50 mm.

**** Boiler weight depends on the equipment.

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