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COMBINED BOILERS FOR GASIFYING - WOOD, NATURAL GAS, EXTRA LFOs AND PELLETS
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The new series of combo boilers ATMOS DC 15EP(L), DC 18SP(L), DC 25SP(L), DC 32SP(L) facilitates the burning of wood on the principle of generator gasification in combination with a burner for pellets, natural gas, or extra LFOs. The boiler enables changing of fuels; we heat by pellets, natural gas, or extra LFOs depending on which burner is built into the boiler. If needed, there is naturally the option to buy a boiler without a burner and select one later or to use a burner from the last boiler.
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REGULATION
- HONEYWELL thrust regulator
- Regulation thermostat
- Combustion gases thermostat
- Thermostat for a pump
- Switch
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Boilers for pellets and gasification wood ATMOS DC 15EP, DC 18SP, DC 25SP, DC 32SP |
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BOILER CONSTRUCTION
The boiler proper is constructed as a body of three chambers situated one above another. The two upper chambers serve for the gasification of the wood, as you are familiar with from the classical gasification boilers that we produce as the standard. In the third, lowest chamber, is installed the required burner at the front, inlaid by ceramics to ensure the optimal quality of burning. Both the systems are separated by a water jacket so that they do not interfere with each other and, thanks to that, the boiler achieves high effectiveness when heating by the individual fuels. The combustion gases exhaustion is handled by one outlet and therefore only one flue is needed.
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Boilers for extra LFOs, natural gas, or ATMOS gasification wood DC 15EPL, DC 18SPL, DC 25SPL, DC 32SPL |
ADVANTAGES OF ATMOS BOILERS
- Possible combination of the individual types of fuel - fuels changing without modifications in the boiler
wood + pellets, wood + natural gas, wood + extra LFOs
- Possible substitution of the individual burners - at any time, it is possible to choose a different medium
- High effectiveness in the individual fuels - for all practical purposes identical as in the special boilers for extra LFOs, natural gas, or pellets (up to 92.3% at the nominal output)
- Cheaper solution - adding the costs for the purchase of two boilers, their installation and smoking, we find that one boiler, though more expensive, is more economical.
- Less built-up area compared to a greater number of boilers
- One chimney and flue
- Ecological operation in all the versions of heating
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| Dimensions |
DC 15EP |
DC 18SP |
DC 25SP |
DC 32SP |
| A |
1695 |
1695 |
1695 |
1772 |
| B |
694 |
757 |
957 |
957 |
| C |
643 |
643 |
643 |
678 |
| D |
1375 |
1375 |
1375 |
1448 |
| E |
152 |
152 |
152 |
152 |
| F |
65 |
65 |
65 |
70 |
| G |
207 |
207 |
207 |
183 |
| H |
1436 |
1436 |
1436 |
1505 |
| CH |
212 |
212 |
212 |
256 |
| I |
212 |
212 |
212 |
240 |
| J |
6/4" |
6/4" |
6/4" |
6/4" |
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1. Boiler body
2. Charging door - wood
3. Ashpan door - wood
4. Gas exhaust ventilator (except for DC 15EP)
5. Heatproof pipe fitting - nozzle
6. Control panel
7. Safety thermostat
8. Regulatory valve
9. Heatproof pipe fitting - extension of the ball space (Kombi)
10. Heatproof pipe fitting - ball space (Kombi)
11. Sealing - nozzles - 12 x 12
12. Door for the pellet burner
13. Heating valve
14. Heatproof pipe fitting - back side of the ball space (Kombi)
15. Cleaning lid
16. Screen
17. Heating valve rod
18. Thermometer
19. Burning space screen |
20. Switch
22. Output regulator - Honeywell FR 124
23. Cooling loop
24. Regulatory thermostat
25. Door filling - Sibral
26. Door sealing
27. Ceramics - roof
28. Burner for pellets, natural gas, or extra LFOs
29. Heatproof pipe fitting - ball space (D 15)
30. Heatproof pipe fitting - inlay of the ball space (DC 15E)
31. Heatproof pipe fitting - ball space - wood
32. Heatproof pipe fitting - back side of the ball space - wood
33. Pump thermostat (only in DC 15EP)
34. Fuse (3,6 A)
35. Combustion gases thermostat (except for DC 15EP)
36. Switch
37. End switch with a button
39. Pump thermostat (DC 18-32 SP)
40. Measurement point for the combustion gases analyzer |
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TECHNOLOGICAL DATA: Type |
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DC 15EP (L) |
DC 18SP (L) |
DC 25SP (L) |
DC 32SP (L) |
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Wood boiler output |
KW |
14,9 |
20 |
25 |
35 |
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Pellet boiler output |
KW |
4,5 - 15 |
4,5 - 15 |
6 - 20 |
6 - 20 |
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Oil or natural gas boiler output |
KW |
15 - 20,5 |
15 - 20,5 |
15 - 30 |
15 - 30 |
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Fuel - wood |
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BARRELWOOD 12 TO 20 PER CENT / HEATING CAPACITY 15 - 18 MJ/k / DIAMETER 70 - 150 mm |
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Fuel - pellets |
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WOODEN PELLETS OF QUALITY, DIAMETER 6 - 8 mm / white pellets / |
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Fuel - natural gas, extra LFOs |
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NATURAL GAS WITH HEATING CAPACITY OF 34 MJm3, EXTRA LFOs WITH HEATING CAPACITY OF 42 MJ/kg |
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Maximum length of wood |
mm |
330 |
330 |
530 |
530 |
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Wood consumption during the season Ø |
m3 |
7 |
9 |
14 |
19 |
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Wood charging hopper volume |
dm3 |
66 |
66 |
100 |
140 |
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Weight of boiler |
kg |
424 |
429 |
506 |
571 |
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Volume of water in boiler |
l |
78 |
78 |
109 |
160 |
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Pellet burner type |
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IWABO VILLA S or ATMOS ERATO GP20 |
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extra LFOs or natural gas burner type |
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ANY BURNER EQUIPPED WITH A MECHANICALLY CONTROLED AIR VALVE |
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Pellets container |
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EXTERNAL - 250, 500, 1000 l |
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Connecting voltage |
V/Hz |
230 / 50 |
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Power demand at the start for pellets |
W |
1120 |
1120 |
1120 |
1120 |
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Power during the operation |
W |
120 |
120 |
120 |
120 |
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Boilers designated for heating with wood in combination with natural gas or extra LFOs have the "L" suffix in their name (e.g. DC 18SPL). |

Boiler with a burner, worm conveyor, and container of pellets. |
Recommended connection with Laddomat 21 and a compensating
The recommended installation is the connection of the boiler with Laddomat 21 or a thermoregulatory valve with a compensating tank with the volume of 500 to 1000 l. Another option is to install a boiler with accumulation tanks with the necessary volume (e.g. 2,000 l), which in addition enable the heating by accumulation electricity, or the connection of solar panels. If needed, the boilers may of course be also connected into the system without the accumulation tanks, especially if we choose natural gas (propane) or extra LFOs as the second medium.
The construction of Laddomat 21 replaces the classical installation of the individual parts. It consists of a cast iron body, thermoregulatory valve, pump, back flap, round valves, and thermometer. The thermoregulatory valve opens up at the temperature of 78 or 72 °C depending on the type of the thermo-cartridge.
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