The ThermoFlux Pelling ECO 25 is a modern pellet boiler with automatic combustion and integrated control for efficient central heating. With up to 25 kW of power, it is ideal for single-family homes and smaller multi-family buildings.
Thanks to the large pellet hopper with a capacity of up to 135 kg and the high efficiency, the boiler provides comfortable and economical heat supply.
⭐ Highlights / Advantages
- ⭐ 25 kW pellet boiler for single-family homes and smaller buildings
- ⭐ Efficiency of over 91% for efficient operation
- ⭐ Pellet hopper up to 135 kg for long refill intervals
- ⭐ Automatic control with flame temperature sensor
- ⭐ Boiler class 5 according to EN 303-5 for low emissions
Application area & target group
The ThermoFlux Pelling ECO 25 is designed for use in:
- Private households (single-family homes)
- smaller multi-family buildings
- renovation and new construction projects
- HVAC contractors as a reliable biomass heating solution
Everyday benefits
The automatic pellet feed and ignition ensure a high level of operating comfort. Thanks to intelligent control, the output continuously adapts to the heat demand. The large storage container reduces maintenance effort and refill intervals.
Cleaning is easy thanks to the accessible combustion chamber and heat exchanger. Regular maintenance ensures long-lasting and safe operation.
Technology & equipment
The pellet boiler operates with automatic ignition and controlled combustion via a flame temperature sensor. The control system dynamically adjusts the pellet feed and fan output.
- integrated electronic control
- automatic power adjustment (10 levels)
- flame temperature monitoring
- buffer sensor connection possible
- room thermostat can be connected
Operation is carried out with wood pellets according to EN ISO 17225-2.
Efficiency & Environment
The Pelling ECO 25 achieves an efficiency of up to 92% in partial load operation and over 91% at nominal output.
With boiler class 5 according to EN 303-5, it meets high requirements for emissions and energy efficiency.
Compatibility & System Integration
The pellet boiler can be integrated into classic heating systems:
- Buffer tank (recommended)
- Radiator systems
- Underfloor heating
- Systems with room thermostat
The use of a buffer tank is recommended by the manufacturer, but is not mandatory.
Technical data
| Manufacturer |
ThermoFLUX |
| Model |
Pelling ECO 25 |
| Product type |
Pellet boiler |
| Nominal output |
8 – 25 kW |
| Efficiency |
up to 92% |
| Pellet consumption |
1.6 – 5.2 kg/h |
| Pellet container |
75 / 135 kg |
| Weight |
267 kg |
| Water content |
60 liters |
| Max. operating pressure |
3 bar |
| Max. temperature |
80 °C |
| Voltage |
230 V |
| Frequency |
50 Hz |
| Power consumption |
max. 340 W |
| Boiler class |
Class 5 |
| Flue gas temperature |
82.5 – 155 °C |
| Flue gas connection |
Ø 120 mm |
| Connection flow / return |
1 inch |
| Dimensions (H x W x D) |
1245 x 410 x 948 mm |
Scope of delivery
- Pellet boiler ThermoFlux Pelling ECO 25
- Cleaning tool
- Operating instructions
Accessories & system recommendation
For optimal and safe operation, we recommend the following components:
Matching system components
Installation and safety instructions
Installation may only be carried out by qualified specialist personnel. All national regulations as well as requirements for the flue gas system and hydraulic system must be observed.
A suitable chimney with sufficient draft (approx. 5–12 Pa) is required.
FAQ
For which buildings is the 25 kW pellet boiler suitable?
The boiler is suitable for single-family homes and smaller multi-family homes with corresponding heat demand.
How high is the pellet consumption?
Depending on the output level, consumption is between approx. 1.6 and 5.2 kg per hour.
Is a buffer tank necessary?
A buffer tank is recommended, but not strictly required for operation.
Which pellets may be used?
Only wood pellets according to EN ISO 17225-2 may be used.
How is the control carried out?
Control is automatic via an electronic controller with flame temperature sensor.
How often does the boiler need to be cleaned?
Cleaning depends on the quality of the pellets, but is carried out at regular intervals (several times a month).