Boilers with feeder for coal

Komfort Eko PZ


gwarancja_5_lat 5 years warranty for heat exchanger tightness, 2 years for the remaining components and efficient operation of boiler;
stal_6mm Heat exchanger made of certified high-grade boiler steel;
sprawnosc_94.jpg High thermal efficiency reaching 94% due to increased heat recovery from flue gases;

Controller ST 483K servicing four pumps /central heating, domestic hot water, circulation, floor pump/.  Possibility to control using GSM or INTERNET - extra paid option; adjustable angle of position of control panel;

NZ Boiler adapted for installation in the closed system provided that protections were installed in accordance with the operation and maintenance manual of the boiler.
czopuch.jpg horizontal or vertical outlet of flue gas
ceramika Ceramic catalysts stabilising combustion process;
palnik_retortowy Combustion chamber with highly effective retort burner;
drzwiczki Change of direction of boiler door’s opening (not applicable to internal glow doors);
slimak Coil of endless screw in the fuel feeder made of one piece;
bar Pressure equalisation system in fuel container;
Specification / boiler type J.m. 15 20 25
Power range kW 4,5-15 6,0-20 7,8-26
Heating area


1,9 2,3 2,87

Area of heated rooms 1


do 190 do 250 do 325

Capacity of fuel container 2

kg ~150 ~150 ~171
Optimum thermal efficiency % ~92,8-94,7
Energy efficiency class   B B B
Max. permissible work pressure bar 1,5
Required flue gas draught Pa 24 26 28
Water temperature on supply max °C 65/80

Boiler weight 3

kg 414 444 495
Pojemność wodna kotła l 75 91 105
Chimney section cmxcm 14x14 16x16 16x16
Chimney section

Ø mm

160 180 180

 Minimum chimney height





Supply and return socket diameter


1 ½ ’’ 

Release socket diameter cal

½ ’’

Diameter of the exhaust gas socket mm 159 159 178


1 Maximum area of heated rooms estimated for unit heat demand q=70 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.


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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