UnicPel
Pellet boiler

Eco-friendly
central heating and DHW with only one device
Find out our UnicPel pellet boiler
UnicPel – High-Efficiency Pellet Boiler by Mareli Systems
The UnicPel pellet boiler is the latest innovation in the range of pellet heating systems developed by Mareli Systems. Designed for maximum comfort and reliability, UnicPel combines a modern, functional design with high energy efficiency and exceptional build quality.
Engineered with years of experience in pellet heating technology, Mareli’s specialists have created a pellet boiler that is easy to install, operate, and maintain. Every detail of UnicPel is designed for user convenience and long-lasting performance.
The integrated pellet hopper provides a high level of autonomy, reducing the need for frequent refilling. In addition, the manual cleaning mechanism for the turbulators allows users to maintain optimal combustion efficiency with minimal effort.
Choose UnicPel – where simplicity meets perfection in modern pellet heating.
Main features

Automatic combustion management with a HUBA sensor
UnicPel is equipped with a HUBA sensor for automatic management of the combustion process. The system monitors various indicators in real time and, based on the results, automatically adjusts the fan speed and pellet feeding. This allows for a customized combustion process recipe, tailored to the specific characteristics of each system.
Easy mechanism for manual cleaning of the turbulators
UnicPel is equipped with a user-friendly manual cleaning mechanism for the turbulators. It helps maintain consistently high heat exchange efficiency between the combustion chamber and the water jacket. With just a few simple movements, the user can easily remove soot buildup, ensuring optimal boiler performance and sustained high efficiency.
An additional advantage is that the mechanism is designed to minimize dust and debris dispersion during cleaning, keeping the area around the boiler clean and tidy.


Easy to use display
UnicPel is equipped with an easy to use display, allowing user-friendly operation with just few clicks.
High-Efficiency Insulation
The combustion chamber of the UnicPel boiler is insulated with a new generation of high-efficiency thermal insulation. This material—a blend of safe, natural components—is precisely marked and cut using modern technology, ensuring exceptional craftsmanship and minimal production waste. Thanks to this insulation, the boiler exhibits minimal radial heat loss, with nearly all of its power focused on the heating hydraulic system.

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