Charging Boilers

Defro Classic

DEFRO CLASSIC boilers with manual charging are equipped with horizontal flue gas channels and are adapted for upper combustion of solid fuels. They are intended for heating of facilities with area up to 250 m2. Primary fuel - chestnut hard coal, secondary fuel: mix of chestnut coal and fine coal, seasoned wood and wooden wastes. Combustion process using natural draught does not require use of electric energy - boilers are operating using natural draught and temperature is mechanically controlled using knob on lifting flap on ash-pan doors or using draught controllers /additional equipment/.

gwarancja 4 4 years of warranty for heat exchanger tightness, 2 years for the remaining components and efficient operation of boiler
stal-6 heat exchanger made of certified boiler steel /grade P265GH/ of 6 mm thickness
sprawnosc-82.png high thermal efficiency reaching 82% thanks to increase heat recovery from flue gases
miarkownik-ciagu.png combustion process adjustment using draught regulator* or knob in ash-pan doors****;
powietrze-wtorne.png adjustment of secondary air inflow
nadmuch.png factory adapted for assembly of blowing set
ruszt-wodny.jpg water-cooled grate;
klamka.jpg adjustment of doors pressing force;
miarkownik.jpg adapted for operation with draught regulator;

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

DEFRO company reserves the right to introduce without any notice changes in technical parameters, equipment and specification of offered products. Information included on this page are not assurance within the meaning of art. 4 par 3 and 4 of the Act of 27 July 2002 on special conditions of consumer sales and change of Civil Code (hereinafter “Act”) and are not description of the product within the meaning of art. 4 par. 2 of the Act. This page is not an offer within the meaning of the art. 66 of the Civil Code.

Specification/boiler type Unit 6 10 15 20 25
Minimal power
kW 1,8 3,0 4,5 6,0 7,5
Power range kW 1,8-6 3,0-10 4,5-15 6,0-20 7,5-25
Heating area m2 0,9 1,6 1,7 2,0 2,3
Area of heated rooms* m2 to 100 to 140 to 170 to 220 to 250
Fuel tank capacity** kg ~18 ~21 ~21 ~30 ~41
Fuel consumption** kg/g 1,3 1,5 1,8 2,2 2,9
Optimum thermal efficiency % ~81,3-83,9
Max. permissible operation pressure bar 1,5
Required flue gas draught Pa 18 20 22 23 26
Max. temp. of water on supply °C 65/90
Temperature of water return min. °C 55
Range of temperature control °C 30-90 /on a draft regulator
Boiler weight kg
161 236 240 273 305
Boiler water tank capacity l 33 52 55 62 73
Chimney section cm x cm 14x14 16x16
Chimney section Ø mm 160 180
Minimum chimney height m 5,5 5,5 6 7 7
Width mm 462 550 550 600 600
Depth
mm 765 930 930 940 1010
Height
mm 1050 1260 1260 1310 1365
Dimensions of charging chamber
and charging hole
mm 258x188 308x238
Diameter of supply and return Dn   1½”
Diameter of the drain   ½”
Diameter of flue mm 127 159 178
Height of bottom edge of flue m
795 965 965 1015 1065



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

 

DEFRO company reserves the right to introduce without any notice changes in technical parameters, equipment and specification of offered products. Information included on this page are not assurance within the meaning of art. 4 par 3 and 4 of the Act of 27 July 2002 on special conditions of consumer sales and change of Civil Code (hereinafter “Act”) and are not description of the product within the meaning of art. 4 par. 2 of the Act. This page is not an offer within the meaning of the art. 66 of the Civil Code.

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