Wood gasifying boiler ATMOS DC 70GSX with extraction ventilator

Wood gasifying boiler ATMOS DC 70GSX with extraction ventilator

NN: 63462



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ATMOS DC 70GSX wood gasification boiler:

The ATMOS DC 70GSX boiler is constructed for burning wood on the principle of generator gasification for high fuel burning efficiency.

The boiler body is produced as a weldment of 3-8 mm thick steel sheets. ATMOS DC 70GSX boiler consists of two chambers, one placed upon another. The first upper chamber makes up the fuel container, and the lower one combustion chamber and ash collector. The grate ensures perfect combustion of wood and provides as simple cleaning access.

Advantages of the ATMOS DC 70GSX wood gasification boiler:

  • Possibility to burn large pieces of wood
  • Primary and secondary air is also preheated to a high temperature - higher effectiveness
  • Simple access
  • Easy servicing and cleaning
  • Ceramic combustion space - high effectiveness
  • Large chamber for solid fuel
  • Boiler without pipes (easy cleaning)
  • Large space for ash
  • Small size and weight
  • Gas exhaust ventilator - dust-free removal of ash, no smoke and dust in boiler room and premises
  • Water cooling loop to prevent overheating
  • Ecological burning – the gasification boiler fulfilles the European Standard EN 303-5 class 3 boiler standards for low emission
  • Automatic boiler shutdown after the burning process is completed - built-in flue thermostat
  • High quality


steel boiler


- 3 years for the boiler installed with Laddomat 21 or mixing valve and accumulation tank
- 2 years without accumulation tank and Laddomat 21


The ATMOS DC 70GSX wood gasification boiler must be connected via the LADDOMAT 21 or mixing valve to achieve keeping to maintain a minimum temperature of returning water to boiler at constant 65°C. The temperature of water exiting the gasification boiler must be permanently kept between 80-90°C. The default configuration of all ATMOS DC series boilers includes a cooling circuit to prevent overheating. It's recommend to install a boiler with an accumulation tank.


ATMOS DC 70GSX wood gasification boilers are certified in testing laboratories for the individual countries of destination. State Testing Laboratory Brno, TÜV Munich - Germany, Lithuania, Ukraine, Sweden, Poland, Austria, Slovakia, Hungary according to current standards - EN 303-5. Product protected by patent.

Picture 1 lower chamber of ATMOS DC 70GSX gasification boiler Picture 2 upper chamber of ATMOS DC 70GSX gasification boiler Picture of the cooling circuit, ATMOS DC 70GSX cool ATMOS DC 70GSX Exhaust vent and ventilator


ATMOS DC 70GSX gasification boiler scheme with dimensions, side view

Schemat kotła ATMOS DC 70GSX

1 Boiler drum 14 Fireproof and heat-resisting fitting - GS - rear face of round space
2 Filling door 15 Cleaning cover
3 Ash pan door 16 Orifice plate
4 Exhaust ventilator 17 Firing safety valve pull rod
5 Fireproof and heat-resisting fitting - nozzle 18 Thermometer
6 Control panel 19 Furnace orifice plate
7 Safety thermostat 20 Switch
8 Regulating safety valve 22 Power regulator - Honeywell FR124
9 Fireproof and heat-resisting fitting - furnace side - GS 23 Cooling loop
10 Fireproof and heat-resisting fitting - GS - round space L+P 24 Fan thermostat
11 Sealing - nozzles 25 V. Door panel - Sibrall
12 Fireproof and heat-resisting fitting - half-moon 26 Door sealing - cord 18 x 18
13 Firing safety valve 27 Waste gas thermostat

ATMOS DC 70GSX scheme


  DC 70GSX   DC 70GSX
A 1558 mm B 1042 mm
C 678 mm D 997 mm
E 150 (152) mm F 70 mm
G 184 mm H 1287 mm
CH 256 mm I 256 mm
J 2"    

Product specification

Power output 70 kW
Exhaust gas pipe diameter 180 mm
Weight 571 kg
Efficiency 81-90 %
Boiler class (303-5:2012) 4
Water capacity 132 L
Height 1648 mm
Width 678 mm
Exhaust pipe distance measured from the floor to its axis. 1054 mm
Depth with exhaust pipe 1068 mm
Max. length of wood 530 mm
Required chimney draught 30 Pa
Outlet and inlet size 2 inch
Min. incoming water temperature 65 °C


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