ATMOS DC 25 S

Product detailed description

- 27 kW ecological wood gasification boiler – WOOD GAS with an exhaust fan and a cooling loop

It is designed for burning wood on the principle of generator gasification using an exhaust fan (S), which draws the flue gases out of the boiler. 
The boiler body is manufactured as a welded structure from quality steel sheets 3 to 8 mm thick. It consists of a fuel hopper (6mm), which is fitted at the bottom with a gasification nozzle with a longitudinal opening for the passage of flue gases and gases. The afterburning chamber below it is equipped with ceramic mouldings for ideal combustion of all combustible substances with high efficiency in ecologically friendly combustion. At the rear part of the boiler body there is a vertical flue gas duct, which is fitted at the top with a lighting flap. The upper part of the flue gas duct is equipped with an exhaust neck for connection to the chimney.    

Note: This type of boiler can also be purchased in an version with built-in weather-compensated control ACD04 with touch display, which can control, in addition to the boiler itself, the boiler circuit, three heating circuits, DHW heating, solar system, etc. A boiler with the control unit built into the boiler panel can be ordered here: ATMOS DC25S REG

Frequently asked questions

• How to choose the right output for a solid fuel boiler? Base your choice on the calculated heat loss of the heated building, but for wood/coal boilers also consider that the boiler burns for several hours at essentially constant output during one filling - therefore it is common practice to supplement the boiler with a buffer tank, which stores excess heat for later use instead of the boiler having to be inefficiently throttled down.
• What else do I need for the installation of this boiler? In addition to the boiler itself, the system usually requires: a buffer (balancing) tank of appropriate volume, a circulation pump (often already with a built-in Laddomat or thermoregulatory valve against low-temperature corrosion of the boiler), a safety valve, an expansion tank, and a flue/chimney with sufficient draught corresponding to the boiler output - exact draught values can be found in the technical parameters above.
• What fuel is suitable and what is not? Use only fuel recommended by the manufacturer for the given model (usually split wood of a defined length and moisture, or possibly brown coal briquettes or coal depending on the boiler type) - unsuitable or excessively moist fuel reduces efficiency, increases tar and deposit formation, and can damage the boiler.
• What about chimney inspection and legislation? Before putting the boiler into operation, as well as regularly during its use (usually once a year for solid fuels), an inspection/cleaning of the chimney by an authorized chimney sweep is required by law - without the relevant inspection certificate, an insurance claim in the event of a fire may also be disputed.
• How much maintenance does the boiler require? This usually includes regular ash removal and cleaning of heating surfaces/flue gas passages from soot (interval depending on intensity of use, usually in the order of weeks), and once a year a thorough inspection including seals and the chimney.
• Can I install the boiler myself? The actual placement and connection of the boiler to the heating system, chimney, and safety elements should be carried out or at least professionally checked by a heating technician - this is a device with an open flame, high temperatures, and pressurized elements, where a connection error can pose a safety risk.