Charging Boilers
Defro Classic Plus

DESCRIPTION
DEFRO CLASSIC PLUS 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, fine coal, secondary fuel: mix of chestnut coal and fine coal, seasoned wood and wooden wastes. Combustion process with forced air blowing, controlled by an electronic controller, what allows more precise adjusting of temperature and improvement of operation comfort. Multi-point air supply system to the fuel charging zone increases stability and efficiency of boiler operation.
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4 years of warranty for heat exchanger tightness of heat exchanger; 2 years for the remaining components and efficient operation of the boiler; |
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Heat exchanger made of certified high-grade steel; |
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high thermal efficiency up to 82% thanks to increased recovery of heat from flue gases - multidraught system of horizontal flue gas ducts; |
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multipoint air supply system; |
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electronic control of boiler servicing of two pumps; |
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water-cooled grate; |
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adjustment of doors pressing force; |
Name of the boiler | DEFRO Classic Plus | |||||
Specification/boiler type | Unit | 6 | 10 | 15 | 20 | 25 |
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 1 |
m2 |
to 100 | to 140 | to 170 | to 220 | to 250 |
Single fuel charging | kg | ~12 | ~19 | ~19 | ~23 | ~31 |
Optimum thermal efficiency | % | ~80 | ||||
Energy efficiency class | - | D | D | D | D | D |
Max. permissible operation pressure |
bar | 1,5 | ||||
Required flue gas draught | Pa | 18 | 20 | 22 | 23 | 26 |
Max. temp. of water on supply | °C | 65/85 | ||||
Boiler weight 2 |
kg | 168 | 241 | 245 | 280 | 310 |
Boiler water tank capacity | l | 33 | 52 | 55 | 62 | 73 |
Chimney section | cmxcm | 14x14 | 14x14 | 14x14 | 14x14 | 16x16 |
Chimney section |
Ø mm |
160 | 160 | 160 | 160 | 160 |
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 | 1225 | 1435 | 1260 | 1310 | 1365 |
Diameter of supply and return Dn |
mm |
G1 ½” |
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Diameter of flue | mm | 127 | 159 | 159 | 178 | 178 |
Dimensions of charging chamber and charging hole |
width depth height width x height |
258 253 236 258 x 188 |
258 368 251 258 x 188 |
258 368 251 258 x 188 |
308 368 251 308 x 238 |
308 438 288 308 x 238 |
Height to bottom edge of the flue |
mm | 795 | 965 | 965 | 1015 | 1065 |
1 Maximum area of heated rooms estimated for unit heat demand q=80 W/m².
2 Boiler weight depends on the equipment.
We would like to inform the DEFRO LOGISTIC company is the exclusive distributor of the
DEFRO Classic Plus on the Polish market.