ATTACK DPInstalation example ATTACK DPPreview of the comprehensive solution ATTACK


  • 85% efektivitaModern and innovative design of the ecological boiler
  • Flat rib heat exchanger
  • Long time approved construction, thousands of the satisfied customers
  • High combustion efficiency – low fuel consumption – low emissions
  • Boiler efficiency of 85,3–86,2 %
  • Output of 25kW
  • 2 modifications – STANDARD, PROFI
  • Extraordinary voluminous feeding chamber of the boiler, which ensures longer burning by one fuel load
  • Burns soft and hard wood and wood pellets
  • Possibility to load big wood logs - length of the feeding chamber is 580 mm (by 25 kW and higher outputs) and enables to load the wood logs of half-meter, which saves time by chopping the wood
  • Minimum of ash
  • User comfort, reliability of operation, easy use and maintenance
  • Manufactured from the special boiler steel of 6 mm to ensure long life-time
  • Suction fan for balanced and effective burning and dustless operation
  • Automatic boiler stop when fuel burns out
  • Controlled rotations o f the fan – the PROFI version
  • Left and right door version
  • Possibility to burn alternative fuel types like olive pits and pit crumb in the automatic burners with of 30 and 50 kW output – the COMBI Pellet modification
  • Refractory pieces are resistant up to the temperature of 1 350 °C, which ensure better parameters of burning

DP Standard

The ATTACK DP 25 STANDARD wood gasifying boiler is intended for economical and ecological heating of the family houses, small plants, work stations and similar objects. Wood is the main fuel for the ATTACK boilers. By full utilization of the feeding chamber there is possibility of the continual burning for 8- 12 hours.

The wood gasifying boiler ATTACK DP Standard is controlled by the boiler and the flue gas thermostat.

The wood gasifying boiler ATTACK DP is a modern boiler that gets maximum from wood thanks to its technology and saves the environment by ecological combustion. The wood is a favourite fuel, as it produces comfortable warmth and grows right outside your door. The boiler body cooled by water is the basic part of the boilers ATTACK DP. The welded part is made from steel plates of 6 mm thickness. The exchanger can be reached by opening the feeding door, in order to enable easier cleaning.

Main Advantages of ATTACK DP Boilers
The manufacturer basically adjusts the flap for primary and secondary air. The primary air comes into the feeding chamber, the secondary air flows into the nozzle. Gasification of wood and the following combustion of the wood gas ensures optimal burning of all combustible contents. The combustion is regulated by the flue gas fan. Boiler body is isolated by a mineral wool. The boiler covering is treated by a powder paint.

Nominal output (Standard version) 25 kW
Output range (Profi version) - kW
Heat exchange area 1,52 m²
Volume of the feeding chamber 125 dm³
Dimension of the feeding door 235 x 445 mm
Prescribed chimney draught 23 Pa
Max. operating overpressure of water 250 kPa
Pressure loss of water (ΔT 10K) 2,1 kPa
Pressure loss of water (ΔT 20K) 0,6 kPa
Boiler weight 370 kg
Diameter of the flue gas outlet 150 mm
Boiler height „A“ 1 240 mm
Boiler width „B“ 700 mm
Boiler depth „C“ 1 090 mm
Length of the feeding chamber „D“ 590 mm
Diameter of the flow connection G 6/4" "
Diameter of the return connection G 6/4" "
Grade of protection 21 IP
Electrical input 38 W
Boiler efficiency 85,3 %
Boiler class
Flue gas temperature by nominal output 230 °C
Flue gas flow by nominal output 0,019 kg/s
Max. noise level 65 dB
Fuel type Wood logs with relative humidity 12 % – max. 20 %, Ø 50–150 mm 
Average fuel consumption 7,75 kg/h
Approximate wood consumption per season 1 kW = 0,9 m3 
Max. length of wood logs 550 mm
Time of operation by max. output 3 h
Volume of water in the boiler 68 l
Recommended volume of the accumulation tank 625 l
Connection voltage ~ 230 / 50 V / Hz
Range to set the heating water temeprature 65 – 90 °C
Range to set the room temperature 10 – 27 °C
Capacity of the contacts of the boiler regulator (Profi version) ~ 230 V / 2 A 
Customer service
Customer service