ATTACK SLX 20 PROFI wood gasifier 20 kW

The ATTACK SLX 20 PROFI This is a modern wood gasification boiler with a nominal output of 20 kW for the efficient and low-emission combustion of logs. It is ideally suited for single-family and two-family homes, both new builds and renovations. Its robust construction and tested emission values ​​according to EN 303-5 ensure reliable and long-lasting heating operation.

Highlights/Advantages

⭐ 20 kW nominal power – ideal for single-family homes and smaller apartment buildings
⭐ High efficiency up to 91.8% – efficient energy utilization of firewood
⭐ Certified according to EN 303-5:2012 – tested emission and performance values
⭐ Manual fuel feed – simple and robust technology
⭐ Suitable for Class A timber – optimal combustion of dry firewood

ATTACK SLX 20 PROFI wood gasifier 20 kW

Area of ​​application & Target audience

The ATTACK SLX 20 PROFI is a Hot water boiler for solid fuels (wood) With manual loading. It was specifically designed for use in residential buildings and is particularly suitable for:

• Single-family homes

• Two-family houses

• Renovation projects with existing chimney

• Systems with buffer storage

The preferred fuel type is Logs with a moisture content ≤ 25%.

Everyday benefits

The wood gasification principle involves burning the logs in two phases – first gasification, then secondary combustion of the wood gases. This results in:

• uniform heat output

• reduced emissions

• high fuel efficiency

• stable power output

Regular cleaning is taken into account in the design (turbulator levers, side cleaning openings, ash box system).

Technology & equipment

• Boiler type: Wood gasification hot water boiler

• Fuel feed: manual

• Primary/secondary air adjustable

• Turbulators for efficiency optimization

• Fan-assisted combustion

• Thermal safety device required

• Recommended chimney draft: 23–30 Pa

• Minimum chimney diameter: 150 mm (200 mm recommended)

• Maximum operating pressure: 2.5 bar

To ensure long-term boiler protection, a return temperature above 65 °C must be maintained. The manufacturer recommends a boiler thermostat setting of 80–85 °C.

Efficiency & Environment

The ATTACK SLX 20 PROFI meets the requirements of EN 303-5:2012 for boilers of fuel class A (wood).

Measurement values ​​according to certificate (rated power):

• Nominal heat output: 20 kW

• Minimum heat output: 10 kW

• Efficiency: 91.8%

• CO at 13% O₂: 150 mg/m³

• Dust at 13% O₂: 9 mg/m³

Certification was carried out by an accredited testing body in accordance with applicable European standards.

compatibility & System integration

The SLX 20 PROFI is typically equipped with:

• Buffer storage

• thermal safety device

• Expansion vessel

• Safety valve

• Mixing device for return flow boosting

combined.

For optimal integration, suitable options are recommended. Buffer storage tanks and return temperature boosts from our product range gemashop.de.

Technical data

Scope of delivery

• ATTACK SLX 20 PROFI wood gasifier

• User manual

• Assembly instructions

Assembly & Safety instructions

Installation and commissioning must be carried out exclusively by a qualified specialist company.

Important instructions:

• Installation of a thermal relief valve is mandatory.

• Return temperature boost (≥ 65 °C) to prevent condensation

• Compliance with chimney requirements

• Regular cleaning of the turbulators and the heat exchanger

Failure to comply with the installation instructions may limit the warranty.

FAQ

1. What fuel is the SLX 20 PROFI suitable for?
For logs with a maximum moisture content of 25%.

2. Is a buffer storage tank required?
A buffer storage tank is strongly recommended for efficient and compliant operation.

3. What are the chimney requirements?
Minimum 150 mm diameter, recommended tensile force 23–30 Pa.

4. What is the efficiency?
The tested efficiency is 91.8% at nominal power.

5. Is a thermal safety device necessary?
Yes, it is mandatory for safe operation.

6. How often does the boiler need to be cleaned?
Empty the ash box daily, and clean the heat exchanger and turbulators regularly according to the operating instructions.

Conclusion

The ATTACK SLX 20 PROFI 20 kW This is a high-performance, certified wood gasifier for demanding heating systems. Ideal for anyone who wants to heat efficiently and in compliance with standards using logs. Order now and modernize your heating system sustainably.