The ROJEK PK BIO 40 is a high-performance wood gasification boiler with a nominal output of 40 kW for the efficient and low-emission heating of larger residential buildings, apartment buildings, or commercial properties. It is designed for logs up to 530 mm in diameter and meets the requirements of EN 303-5 Class 5 as well as the Ecodesign Regulation.

Highlights/Advantages

⭐ 40 kW nominal power – suitable for larger buildings
⭐ 180 liter combustion chamber – long burn time of 5–9 hours
⭐ Top loading – convenient and quick reloading
⭐ Electronic control – stable and efficient combustion control
⭐ EN 303-5 Class 5 & Ecodesign compliant – standards-compliant and future-proof

Area of ​​application & Target audience

The ROJEK PK BIO 40 is designed for larger single-family homes, apartment buildings, agricultural buildings, or commercial applications. Its robust construction makes it suitable for continuous operation in central heating systems.

For efficient and standards-compliant operation, combination with a sufficiently sized buffer storage tank is recommended.

Everyday benefits

The generous combustion chamber volume of 180 liters allows for long burning times and reduces refueling intervals.

The top loading system significantly simplifies filling. The heat exchanger can be cleaned via an external cleaning lever, making maintenance work convenient.

Technology & equipment

The ROJEK PK BIO 40 operates according to the proven wood gasification principle with electronic control to optimize combustion.

Maximum log length: 530 mm
Permissible wood moisture content: maximum 20%
Recommended calorific value: 14–18 MJ/kg

The boiler meets the requirements of EN 303-5 Class 5 for firewood and is Ecodesign compliant according to Regulation (EU) 2015/1189.

Efficiency & Environment

Rated power: 40 kW

The ROJEK PK BIO 40 meets the emission requirements of class 5 according to EN 303-5 and complies with the European Ecodesign requirements for solid fuel boilers.

Technical data

Scope of delivery

• ROJEK PK BIO 40 wood gasification boiler

• Electronic control

• User manual

• Assembly instructions

Accessories/Recommendation

For efficient operation, we recommend:

• Buffer storage with sufficient storage volume

• Return flow increase

• Thermal safety device

• Safety group for solid fuel boilers

Assembly & Safety instructions

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

Only untreated firewood with a maximum moisture content of 20% may be used. Operation must comply with national regulations and EN 303-5.

FAQ

What is the permissible length of wood?
Up to 530 mm.

Is the boiler eligible for funding?
It meets EN 303-5 Class 5 and Ecodesign standards. National funding requirements must be checked separately.

How long does a filling burn?
Approximately 5–9 hours, depending on fuel quality and load.

Is a buffer storage tank necessary?
A buffer storage tank is recommended for efficient and standards-compliant operation.

What wood moisture content is permissible?
Maximum 20%.

How is the cleaning done?
Via an external cleaning lever and a maintenance door.

Conclusion

The ROJEK PK BIO 40 is a high-performance wood gasification boiler for larger heating requirements. It combines a robust design with modern emission compliance and efficient wood gasification technology.