The best-selling Drevoplyn boilers are characterized by a large upper combustion chamber. Primary air supplied in the upper part of the upper combustion chamber. A gasification nozzle with openings for the supply of highly preheated secondary air, through which flames go from the upper combustion chamber into the lower combustion chamber. A rear flue gas duct with a heat exchanger ensuring good boiler efficiency and an exhaust fan which function is to blow flue gases into the chimney. The ATMOS Drevoplyn boiler body is made as a weldment from high-quality steel sheets with a thickness of 3 to 8 mm.
Wood gasification (reverse combustion) with subsequent combustion of wood gas at temperature between 900 and 1200 °C in a ceramic combustion chamber guarantees high-quality wood combustion with high efficiency and a minimum of harmful exhalations.
The air supply and combustion process controlled by the exhaust fan, together with simple or electronic controller according to the customer’s needs, allow the boiler to heat up quickly and burn well from the ignition.
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* ESTO only in Estonia, Latvia, Lithuania
Wood gasification boiler ATMOS DC 25 S, 27kW
Wood gasification boilers – Drevoplyn
Boiler efficiency according to type 86.3 - 92 %
Advantages of Wood Gasification Boilers ATMOS
- Option to burn large pieces of wood
- Large space for wood – long burning time – up to 12 hours, depending on boiler type
- High efficiency 87 – 92 % – primary and secondary air is preheated to a high temperature
- Ceramic combustion chamber
- Ecological burning – boiler class 5 – EN 303-5:2012, ECODESIGN 2015/1189
- Exhaust fan – dust-free ash removal, smokeless boiler room
- Cooling loop protecting against overheating – without risk of boiler damage
- Automatic shutdown of the boiler after the fuel has burned out – flue gas thermostat
- Comfortable ash removing – large space for ash (when burning wood, clean it 1x / week)
- Boiler without tube heat exchanger – easier cleaning
- Small size and low weight
- Possibility of choosing a door R / L (right/left) for selected types
- Possibility of connection without accumulation tank
- High quality
Boilers regulation
Electromechanical regulation – boiler performance is regulated by an air regulating valve controlled by a draft regulator, FR 124 type, which automatically opens or closes the air valve according to the set water outlet temperature (80 – 90 °C). In addition to performance regulation, the draft regulator helps protect the boiler against overheating. Its advantage is a quick ignition and firing up to the required output when the air valve is fully open. The boilers are equipped with a control thermostat on the instrument panel, which controls the exhaust fan according to the set water outlet temperature (80 – 85 °C) and a flue gas thermostat, which is used to shut down the boiler and turn off the exhaust fan after the fuel has burned out. In the case of connecting a boiler with accumulation tanks, the flue gas thermostat also controls the operation of the pump in the boiler circuit.
The advantage of regulation and design of ATMOS boilers is that the boilers work with a good chimney draft up to 70 % of the nominal power even without a fan.
- Regulating air flap
- Draught regulator FR 124
- Boiler control panel with standard regulation
Panel composition:
Main off switch, safety thermostat, thermometer, regulator thermostat and combustion thermostat
Electro-mechanical regulation is an optimum solution for easy management of the operation of the boiler (ventilator). The design of the panel with standard regulation is a basic design for all produced boilers.
Technical details
| Description of the boiler drawing | |||
| 1. | Boiler body | 23. | Cooling loop protecting against overheating |
|---|---|---|---|
| 2. | Filling door – upper | 24. | Fan control thermostat (boiler) |
| 3. | Ashtray door – lower | 25. | Door panel – Sibral |
| 4. | Exhaust fan (S) | 26. | Door seal – cord 18 x 18 |
| 5. | Heat-resistant fitting – nozzle | 27. | Heat-resistant fitting – ceramic roof |
| 6. | Control panel | 29. | Capacitor for exhaust fan – 1μF |
| 7. | Safety thermostat | 33. | Flue gas brake (DC22SX, DC30SX, DC40SX, DC50S, DC70S) |
| 8. | Control flap | 35. | Waste gas thermostat |
| 10. | Heat-resistant fitting – spherical space L + R | 36. | Safety thermostat (Caution – when overheating push on) |
| 11. | Nozzle seal | 37. | Air braker under the ceramic roof |
| 12. | Heat-resistant fitting – half-moon | 39. | Air braker along spherical space (DC18S) |
| 13. | Firing up valve | 42. | Primary air regulation |
| 14. | Heat-resistant fitting – rear part of spherical space | 43. | Secondary air regulation |
| 15. | Cleaning lid | ||
| 17. | Fire valve stem | K | – the flue-gas duct neck |
| 18. | Thermometer | L | – the boiler water outlet |
| 19. | Frame screen | M | – the boiler water inlet |
| 20. | Switch with an indicator light | N | – filling valve pipe sleeve |
| 22. | Draught regulator – HONEYWELL FR124 | P | – sleeve for a sensor of the valve which regulates the cooling loop |
