The ROJEK PK BIO 25 is a powerful wood gasification boiler with a nominal output of 25 kW for single- and two-family homes. It enables efficient, low-emission combustion of log wood up to 530 mm in length and complies with EN 303-5 Class 5 and Ecodesign.
Highlights / Benefits
⭐ 25 kW nominal output – ideal for larger single-family homes
⭐ 130-liter loading chamber – long burn times
⭐ Top loading – convenient filling
⭐ Electronic control – controlled wood gasification
⭐ EN 303-5 Class 5 & Ecodesign compliant
Application area & target group
Suitable for residential buildings and smaller commercial units with medium heat demand. Particularly economical in combination with a buffer tank.
Everyday benefits
Top loading allows for quick refilling. The generous fuel chamber volume enables long burn times. Cleaning is conveniently carried out via externally accessible controls.
Technology & Equipment
Nominal output: 25 kW
Fuel chamber volume: 130 liters
Max. log length: 530 mm
Max. wood moisture: 20%
Calorific value of fuel: 14–18 MJ/kg
Electronic control
Efficiency & Environment
Meets EN 303-5 Class 5 for firewood.
Ecodesign-compliant in accordance with EU 2015/1189.
Technical data
| Feature |
Value |
| Manufacturer |
ROJEK |
| Model |
PK BIO 25 |
| Boiler type |
Wood gasification boiler |
| Rated output |
25 kW |
| Fuel |
Log wood |
| Loading chamber volume |
130 l |
| Max. log length |
530 mm |
| Standard |
EN 303-5 Class 5 |
| Ecodesign |
Yes |
Scope of delivery
FAQ
What wood length is permissible?
Up to 530 mm.
Is the boiler eligible for funding?
It meets Class 5 and Ecodesign standards; national funding conditions must be checked.
How long does one fill burn?
Approximately 5–9 hours, depending on the fuel.
Is a buffer tank required?
Recommended for standard-compliant operation.
What wood moisture content is permissible?
Maximum 20%.
Where is cleaning carried out?
Via cleaning levers and the maintenance door from the outside.
Conclusion
The ROJEK PK BIO 25 is an efficient solution for medium heat demands, combining robust technology with modern emission compliance.