EPSILON F – Compact pellet boiler with central pellet burner
Product overview
The EPSILON F pellet boiler combines state-of-the-art technology with a compact design, offering a future-proof alternative to fossil fuels. Thanks to its high-quality equipment and innovative features, efficient and environmentally friendly operation is ensured.
The unit is available in various output ranges (10, 15, 20, 25 kW) and meets the highest demands for energy efficiency within class A+. Optionally, the pellet storage volume can be expanded using the PLUS version.
High-quality equipment
Equipped with a central pellet burner and automatic heat exchanger cleaning, the focus is on an advanced operating concept that minimizes maintenance effort while maximizing efficiency. The integrated ash removal system supports continuous, trouble-free operation.
A BEG-compliant particulate separator and the option to retrofit a lambda sensor ensure not only a particularly clean combustion process but also environmentally friendly use.
Innovative combustion technology
The EPSILON F pellet boiler relies on state-of-the-art combustion techniques – the TSS Twin Spark System uses two alternately active ignition elements to ensure reliable and efficient combustion. This leads to optimal fuel utilization and consistently high energy yield.
Further technical highlights such as vertical fire-tube heat exchangers with turbulators and a strong induced draft throughput guarantee that heating output and safety are always in harmony.
Comfortable operation
The intuitive control via the APC Center with touchscreen makes handling the boiler simple and user-friendly. With the integrated control, up to six pumps and two heating circuit mixers are regulated, enabling precise control of all processes.
A factory-installed internet module extends operating comfort and allows connection to modern remote control systems – ideal for users who want to keep an overview even from a distance.
Safety and monitoring systems
A negative pressure sensor in the combustion chamber and a strong induced draft via the fan ensure that the required negative pressure is maintained at all times. In addition, a level sensor in the pellet container prevents empty operation of the feed screw, thus protecting the system.
These integrated safety functions not only increase operational safety, but also contribute to the longevity and reliability of the boiler.
Energy efficiency and funding
With its high energy efficiency and innovative technology, the boiler not only ensures cost-effective heat supply, but also meets modern ecological requirements. This makes it an excellent choice not only from an economic but also from an environmental perspective.
The possibility of BEG funding underscores the commitment to promoting forward-looking and sustainable technologies.
Expansion options and accessories
In addition to the standard version, there is the option to expand the boiler with additional accessories. These include, among others, modules for communication (GSM, internet, and radio modules) as well as additional control units such as various room thermostats.
The expandable PLUS version with a larger hopper also allows for a longer fuel reserve, which further increases the operating comfort and flexibility of the system.
Technical data
- Energy efficiency class A+
- Boiler class 5
- Nominal heat output 25 kW
- Efficiency 90.8%
- Draft requirement 14 Pa
- Required fuel Pellets
- Flue gas temperature 129 °C
- Flue gas mass flow rate 22 g/s
- Height 1290 mm
- Width 931 mm
- Depth 1040 mm
- Flue pipe connection 100 mm
- Weight 366.0 kg
Scope of delivery
- Pellet boiler Defro Epsilon F 25 kW
- Installation and operating instructions
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