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Nominal heating power:
- coal: 22 kW,
- pellets: 17 kW.
Efficiency: 89,1%
Fuels: black coal (5 – 25mm), pellets (6-20mm)
Additional fuels: wood and other solid fuels
Warranty: 5 years for welded connections, 2 years for other elements, 1 year for the feeding screw
EKO-TECH boilers with an automatic fuel supply system are meant to be used in central heating installations as well as for warm utility water preparation in housing such as detached houses, stores, garages and utility buildings.
DUO means an automatic retort boiler with full function of the classical (normal) boiler. The boiler has an additional cast iron grate and an extra large combustion chamber which allows burning of all solid fuels. If necessary, the boiler can burn coal or wood, for a long, not limited time.
Advantages of the Tech DUO boilers:
- high efficiency,
- automatic functioning,
- quick and easy maintenance,
- economical fuel burning,
- smoke free and ecological burning,
- possibility to steer CH and DHW pumps,
- possibility to install a warm water exchanger.
The boiler is equipped with a safety thermostatic valve Danfoss BVTS. It protects against backfire in the feeding screw tube and fuel hopper. The valve is connected to the fresh water supply system. The sensor is fixed on the feeding screw tube. If the temperature in the feeding screw should increase above 95 oC , the valve is going to open and the tube is going to be filled with water.
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Technical parameters |
Unit |
Value |
|
For coal |
|
Size of heated surface |
m2 |
230 |
|
Slow combustion |
h |
160 |
|
Hopper capacity |
kg |
80 |
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For pellets |
|
Size of the heated surface |
m2 |
180 |
|
Slow combustion |
h |
140 |
|
Hopper capacity |
m3 |
0,15 |
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Other parameters |
|
Max. water temperature |
oC |
90 |
|
Max. water pressure |
MPa |
0,15 |
|
Required chimney draught |
Pa |
20 |
|
Minimum chimney section |
cm2 |
225 |
|
Weight |
kg |
360 |
|
Power supply |
V |
230 |
|
Power consumption |
W |
74 |
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Width |
mm |
1130 |
|
Depth |
mm |
880 |
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Depth with exhaust gas pipe |
mm |
1040 |
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Height |
mm |
1110 |
|
Exhaust gas pipe section (inner size) |
mm |
188x188 |
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Exhaust gas pipe section (external size) |
mm |
192x192 |
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Distance from exhaust gas pipe lower edge to the floor |
mm |
860 |
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Outlet and inlet diameter |
inch |
G 3/2 |
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Dimensions of the combustion chamber |
|
Height |
cm |
47,5 |
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Width |
cm |
32 |
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Depth |
cm |
41,5 |
| Available Options: |
| Coal for burning on the boiler: |
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| Connection to the chimney: |
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| Side of box: |
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