ATTACK SLXATTACK SLXATTACK SLXInstallation example with ATTACK SLX Preview of the comprehensive solution ATTACK


  • EfficientModern and innovative boiler design of ecological boilery
  • High efficient tubular exchanger “flue gas-water” with turbulators
  • Boiler efficiency of 91,6 %
  • Wide output range of 12,5–25 kW
  • High combustion efficiency of 90% ensured by the tubular heat exchanger with movable turbulators
  • Long time approved construction, thousands of the satisfied customers
  • Heat exchanger cleaning by turbulators, by moving the lever, clean exchanger = high efficiency = lower operating costs, fuel saving
  • The volume of the boiler´s feeding chamber is unique: 200 l and ensures longer burning on one fuel load
  • Option of the dry coat placed around the whole feeding chamber – increased protection against tar creation
  • Burns soft and hard wood and wood briquettes
  • Possibility to load big wood logs – length of the feeding chamber is 690 mm and enables to load the wood logs of half-meter, which saves time by chopping the wood
  • Minimum of ash
  • Better burning and lower fuel consumption
  • Excellent emissions and efficiency
  • Fixed position of the lever for easier cleaning
  • 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
  • Fluently modulated fan rotations (modification PROFI, LAMBDA Touch)
  • Right door version
  • Automatic boiler stop after the fuel burns-out
  • Equipped with aftercooling circuit against overheating of boiler in the water
  • Refractory pieces are resistant up to the temperature of 1 350 °C, which ensure better parameters of burning
  • The boiler fulfils criteria of the highest class under the European norm EN303-5
SLX PROFIThe new boiler line ATTACK SLX - 7000 is equipped with the more efficient tubular exchanger flue gas – water. Special movable turbulators installed inside the exchanger serve to brake and to make the turbulent flow of the flue gas through the exchanger. Thereby it comes to higher heat transfer through the steel exchanger wall into the heating water.
Turbulators also enable easy exchanger cleaning. The clean exchanger reaches the most effective operation parameters – the high efficiency.

The volume of the SLX boiler´s feeding chamber is unique: 200 – 230l and ensures longer burning on fuel load. This unique chamber also makes possible 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.

There is added 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.

From technical view it is a boiler line with high efficiency, low flue gas temperature and more effective combustion process. Achieved efficiency of the ATTACK SLX boiler is upto 91,7 %. By installation of more efficient boiler of the ATTACK SLX line it comes to significant decrease of the operating costs, projected into the fuel savings, in comparison with less efficient boilers that combust same fuel. From the social-wide view, it is an enviroment-friendly source, combusting wooden biomass, which is a kind of CO2-neutral fuel.


The ATTACK PROFI of the „PID“ generation is a kind of the advanced regulator, which enables to modulate the heat output
in the ATTACK ® wood gasifying boilers by regulation of the fan rotations. The well-readable display shows the necessary
information and makes the boiler control easier. The ATTACKSLX PROFI boiler brings the improvement of the PID regulation to control the fan rotations according to the temperature of water and flue gas and thereby to achieve the optimal efficiency.

The regulator uses the advanced Fuzzy logic system for control to regulate the wood gasification system in the optimal way – to ensure the lowest heat loss possible. The boiler equipped with the regulator ATTACK PROFI „PID” can control the heating system equipped with the following items: a pump for charging the accumulation tank, accumulation tank, circuit pump of heating circuits and room thermostat, by the lowest loss of heat energy possible. The regulator can be connected and set in the way enabling to control the pump of heating circuits and pump to charge the tank for domestic hot water.
Nominal output (STANDARD version) 25 kW
Output range (PROFI, LAMBDA version) 12,5–25 kW
Heat exchange surface 2,95 m²
Volume of feeding chmaber 200 dm³
Dimension of feeding door 235 × 445 mm
Prescribed chimney draught 23 Pa
Max. operating overpressure of water 250 kPa
Boiler weight 570 kg
Priemer odťahového hrdla 150 mm
Boiler height „A“ 1 472 mm
Boiler width „B“ 703 mm
Boiler depth „C“ 1 337 mm
Length of feeding chamber „D“ 690 mm
Diameter of flow connection G 6/4" "
Diameter of return connection G 6/4" "
Grade of protection 21 IP
El. input 42 W
Boiler efficiency 91,6 %
Boiler class
Flue gas temperature by nominal output 170 °C
Flue gas temperature by nominal output 0,020 kg/s
Max. noise level 65 dB
Fuel class and type Wood logs with relative humidity of 12 % – max. 20 %, ∅ 50–150 mm 
Average fuel consumption 6,5 kg/h
Approximate fuel consumption per season 1 kW = 1 m3 
Max. length of wood logs 650 mm
Volume of water in the boiler 117 l
Recommended volume of accumulation tank 2 000 l
Connection voltage ~230/50 V / Hz
Range for setting the temperature of heating water 65–85 °C
Range for setting the room temperature 10–27 °C
Capacity of the contacts of boiler regulator (PROFI version) 2 A/230 V 
Similar products
Customer service
Customer service