Boilers with feeder for coal

AKM

Automatic boilers DEFRO AKM are equipped with heat exchanger, where components mostly endangered to action of flames are made of boiler steel of thickness 8 mm. Boilers are adapted for operation with piston fuel feeder, feeding fuel to the grate in portions. Drawer feeding fuel has reinforced structure, protected with replaceable components made of stainless steel, while components for moving it have bearings, what increases their durability and ensures quiet and uniform operation. Ceramic catalysts, ensuring afterburning of gases and more ecological combustion process, are additionally located in the furnace chamber. Additional cast iron grate allows combustion of such fuels are wood or coal of thicker assortments. It allows to use boiler in emergency situations. Arrangement of cleaning holes ensures that servicing of boiler is easy and comfortable. Ash container, set of cleaning tools and adjustable legs are included in the standard equipment.

5 lata 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 6-8mm z hut Arcelor Mittal Poland S.A.
heat exchanger made of certified boiler steel /grade P265GH/ of 6-8 mm thickness from steel mills of Arcelor Mittal Poland S.A.
sterownik K2 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 K2 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 87% dzięki zwiększonemu odzyskowi ciepła ze spalin high thermal efficiency reaching 87% thanks to increased heat recovery from flue gases
stabilna i cicha praca dzięki mimośrodowemu mechanizmowi przeniesienia napędu i pełnemu łożyskowaniu elementu podającego paliwo stable and quiet operation thanks to eccentric power transmission mechanism and bearing of fuel feeding component;
 wymienny ruszt zastępczy z wysokiej jakości żeliwa żaroodpornego
exchangeable substitute grate made of high-quality cast iron
 

(*) - 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 15 22 30 40 50 75
Power range kW 4,5-15 6,6-22 9,0-30 12,0-40 15,0-50 22,5-75
Heating area m2 1,8 2,8 3,2 4,2 5,2 7,8
Area of heated
rooms*
m2 to 200 to 280 to 360 to 440 to 600 to 800
Capacity of fuel container** kg ~89 ~117 ~130 ~200 ~262 ~282
Optimum thermal efficiency % ~87-88
Max. permissible operation
pressure
bar 1,5
Required flue gas draught Pa 24 26 30 32 34 38
Water supply temperature
max.
°C 65/80
Boiler weight ****
kg 411 526 574 717 817 1120
Boiler water tank capacity l 68 109 119 151 172 257
Chimney section cmxcm 14x14 15x15 17x17 19x19 21x21 25x25
Chimney section Ø mm 160 165 190 215 230 290
Minimum chimney height m 6 7 8 8 9 9
Width mm 625 633 670 770 820 845
Depth mm 1614 1814 1820 1820 1820 2022
Height*** mm 1346 1507 1507 1607 1707 1817
Diameter of supply and return Dn mm G1 ½” G2 ”
Flue size mm 159 159 178 194 194 245
Supply V/Hz ~230/50
Maximum power consumption W 224 273 273 290 290 345
Height to bottom edge
of flue
mm 1312 1476 1476 1577 1677 1817
Dimensions of substitute combustion
chamber and charging hole
width 258 258 308 408 454 504
  depth 210 410  410 360
 360 560
  height 300 300
300
400 400
400
  width x height.
258 x 188
258 x 238
308 x 238 408 x 238
454 x 238 504 x 338

* Maximum area of heated rooms estimated for unit heat demand q=85 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.

 

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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