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Ecological and fully automatic pellet boilers ATMOS
Boilers are designed in such a way that the burner is built into the left or right side of the boiler, functioning as a heat exchanger, which draws pellets from the storage tank by means of a screw conveyor. The fuel tank is located next to the boiler or in an adjacent room and can be of any arbitrary size (the standard size is 250 or 500 l). A part of the boiler room can be used for storing pellets before conveying into burner.
The burner itself operates as follows. If the burner is triggered (the need to heat arises), the conveyor gets pellets into the burners spout and ignites them using a glowing coil. Following sufficient pellet combustion, the burner is adjusted to the set output where it remains until the system is heated. Thereafter, the burner is switched off and pellets in the burners chamber are burnt out. The whole cycle is repeated again when heating is required. .
The boiler output and other burner functions are controlled electronically, which enables an adaptation of the boiler operation to specific system conditions. Addition of fuel, cleaning of the burner combustion chamber and removal of ash is performed once every 1 - 14 days, depending on the quality of pellets. You can add to the boiler automatic ash remover which assures even more comfortable operating.
A great advantage of our pellet boilers is that you can remove the burner from the boiler and replace it with a lid, and wood can be used for heating the system. These features mean that these boilers offer the same degree of operating comfort and utility value as do boilers running on gas, propane-butane or LFOs. The main advantage is that in comparison with natural gas or LTO,these boilers combust renewable energy sources which makes their prospects look very good.
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Advantages of pellet boilers ATMOS - high comfort of heating
- high efficiency 91%-93% depending on type of pellets – low consumption of fuel
- ecological burning – boilers in CSN EN 303- 5 in class 3
- possibility to get a grant from the government
- cooling loop protecting the boiler against overheating
- automatic operation
- automatic ash removing – in case of installing with ash remover
Pellets
Most of you already have some experience in using wood or wooden briquettes for heating either in boilers or fireplaces. These fuels are widely available at reasonably good prices. A new product, not yet known by all, is the so-called pellets, which are produced in a similar way as wooden briquettes by high-pressure pressing of waste wood (dry sawdust and chips) without any binder. Good quality pellets are made of soft wood without bark. So called white pellets which ensure trouble free operation of the boiler.
Pellets can be produced by the same way from hard wood or wood with bark so called dark pellets but these can cake in the burning chamber and can cause problems. The same way pellets from straw or other biological wastes are made. (e.g. poppy head pellets, rape pellets, turf pellets, etc.) The most frequently used pellet size is with a diameter of 6, 8 and 9 mm and a length of 5 to 25 mm. The heating value is approximately the same as for wooden briquettes, ranging from 14 to 19 MJ/kg. It is very important to store pellets in a dry place to prevent their deterioration.
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| IWABO 4,5 - 22 kW supplied with a pellet conveyor |
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Appropriate pellet burner for D15P, D20P pellet boilers Burner IWABO is able to burn only good quality white pellets from soft wood without bark ø 6-8mm, lenght 10-25mm with heating power 16-19 MJ.kg-1. Burners are not able to burn pellets with high caking property in the burning chamber. In such case it is needed to clean the burning chamber in period 1-3 days.
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| ATMOS A50 10 - 48 kW |
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Appropriate pellet burners for D30P, D45P pellet boilers ATMOS A50 10 - 48 kW Burner Atmos A50 is able to burn only good quality white pellets from soft wood without bark ø 6-8mm, lenght 10-25mm with heating power 16-19 MJ.kg-1. Burners are not able to burn pellets with high caking property in the burning chamber. In such case it is needed to clean the burning chamber in period 1-3 days. |
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| ATMOS A70 Petro výkon 13,5 - 60 kW |
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ATMOS A70 Petro výkon 13,5 - 60 kW Burner ATMOS A70 Petro is a newly developed modern burner able to burn poor quality wood pellets and alternative biomass pellets. The burner is built as a barrel burning chamber in which happens to ideal burning of all combustible components and with its rotation it prevents from caking. The rotating helps with better cleaning.
The burner is appropriate for boilers D45P. The nominal power output of the boiler with this burner is set to 48kW with efficiency over 92%. Connection of boiler D45P and burner Atmos A70 Petro enables continuous operation by max. power output of the boiler 60kW. By this output the boiler and burner reach the efficiency over 90%. Such cofiguration can be used for house up to 60kW heat loss. The specified fuel is white pellets. The burner is able to burn alternative pellets from cole straw, poppy head pellets, turf pellets 6-10 mm, lenght 5-20 mm. It is possible to combine different types of pellets at one moment. But for good and quality burning we recommend to burn same fuel types. It is better for setting optimal parametres of burning and increase quality of waste gasses, lifetime and efficiency of the boiler. When heating with alternative pellets we can get more ash so we recommend to fit the boiler with automatic ash cleaner/remover. Such combination gives us a possibility to heat for low heating costs with a high comfort.
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| 1. | Boiler body | 11. | Door lining - sibral |
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| 2. | Feeding door | 12. | 18x18 mm door insulation |
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| 3. | Ash pan | 13. | Closure |
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| 4. | Control panel | 14. | Refractory bricks - rear part of dome-shaped chamber |
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| 5. | Regulatory valve | 15. | Air-slide - regulation of incoming air |
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| 6. | Refractory bricks - bottom of combustion chamber | 16. | Cooling loop |
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| 7. | Refractory bricks - dome-like chamber | 17. | Burner slot |
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| 8. | Screen | 18. | Cleaning window |
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| 9. | Thermometer - thermostats and switches | 19. | Brake valve |
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| 10. | Honeywell FR 124 output regulating device | 20. | Cleaning cover |
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| | | 21. | Suction ventilator (only for the D 20 P, D 30 P, D 45 P boiler) |
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| TYPE | D 15 P | D 20 P | D 30 P | D 45 P |
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| A | 1405 | 1405 | 1405 | 1405 |
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| B | 470 | 470 | 670 | 870 |
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| C | 606 | 606 | 606 | 606 |
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| D | 1040 | 848 | 848 | 848 |
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| E | 152 | 152 | 152 | 152 |
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| G | 211 | 211 | 211 | 211 |
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| H | 1163 | 1163 | 1163 | 1163 |
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| CH | 202 | 202 | 202 | 202 |
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| J | 6/4" | 6/4" | 6/4" | 6/4" |
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TECHNOLOGICAL DATA | | D 15 P | D 20 P | D 30 P | D 45 P |
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| Pellet boiler output | KW | 4,5 - 15 | 6,5 - 22 | 8,9 - 29,8 | 13,5 - 45 / 48 (60) | | Weight of boiler | kg | 259 | 305 | 370 | 430 | | Fuel | | WOODEN PELLETS OF QUALITY, DIAMETER ø 6 – 8 mm (white pellets)
| | Reserve Fuel | | BARRELWOOD 12 TO 20 PER CENT / HEATING CAPACITY 15 – 18 MJ/kg / DIAMETER O50 – 150 mm
| | Wood charging hopper volume | dm3 | 70 | 70 | 105 | 140 | | Maximum length of wood | mm | 300 | 300 | 500 | 700 | | Volume of water in boiler | l | 65 | 82 | 91 | 117 | | Pellet burner type | | IWABO VILLA S / ATMOS ERATO GP 20 / ATMOS A 50 / A70 Petro | | Pellets container | | EXTERNAL - 250, 500, 1000 l | | Connecting voltage | V/Hz | 230 / 50 | | Power demand at the start | W | 1120 | 1170 | 535 | 535 / 2180 | | Power demand during the operation | W | 120 | 170 | 135 | 135 / 180 |
| A | tank | D | pellet supply hose |
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| B | boiler | E | burner | | C | conveyor | | |
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