Solid fuel boiler with automatic loading DEFRO KOMFORT EKO LUX 12 kW

Automated Solid Fuel Boiler DEFRO Komfort Eko Lux – A Worthy Alternative to Gas and Liquid Fuel Heating Systems

The DEFRO Komfort Eko Lux automated solid fuel boiler is an excellent alternative to gas and liquid fuel heating systems, combining ease of use and cost-effectiveness. It is equipped with an automatic fuel delivery mechanism to the combustion chamber and a retort burner made of heat-resistant cast iron.

The high-efficiency heat exchanger of this boiler is made of durable, heat-resistant P265GH Arcelor Mittal steel, 6–8 mm thick, achieving an efficiency of up to 88%. The thermal insulation layer is made of mineral stone wool, which prevents the risk of burns when touching the metal parts of the casing.

The Komfort Eko Lux is equipped with an advanced retort burner made of heat-resistant cast iron and a spacious hopper designed for use with bulk fuel materials (pellets, coal with a fraction of 5–25 mm). Thanks to the automatic fuel delivery by a screw conveyor and forced primary air supply, stable and even combustion is ensured. Secondary air is supplied through special channels, promoting complete fuel combustion and efficient ash removal.

To enhance the boiler's efficiency, a multi-point air supply system has been implemented, complemented by a nozzle cleaning function. This solution ensures uniform combustion and optimizes the device's performance.

Exhaust gases are removed through a flue pipe at the rear of the unit. The draft of the chimney is regulated using a built-in damper, allowing control over the combustion intensity. The boiler's design simplifies the cleaning of the heat exchanger and flue channels.

The modern K1 controller manages four pumps (heating, hot water supply, and two additional ones), a mixing valve, and supports the connection of GSM and internet modules, as well as the SPK Lux room thermostat. The controller's firmware can be updated via USB by downloading the latest version from the manufacturer's website.

Although the DEFRO Komfort Eko Lux boiler is single-circuit, it can be connected to an indirect heating boiler to provide hot water throughout the heating season. The use of a circulation pump speeds up system heating, and the boiler installation does not require significant effort – it can be done either independently or with the help of a specialist.

Key Advantages of DEFRO Komfort Eko Lux:

5-year warranty on the heat exchanger's tightness and 2 years on other components.

Reinforced construction with a cooling coil, adapted for closed heating systems (NZ version).

Choice of flue gas outlet direction (horizontal or vertical – CG option).

High efficiency up to 90% due to effective use of exhaust gas energy.

Adjustable door opening direction (does not apply to internal doors).

Monolithic screw conveyor and combustion chamber with an innovative retort burner.

Ceramic catalysts stabilizing the combustion process.

Automatic regulation of boiler operation depending on airflow through the heat exchanger.

Pressure stabilization system in the fuel hopper.

Heat exchanger made of certified P265GH steel (6–8.8 mm thick).

Sensor for monitoring the fuel hopper lid opening.

K1V4 controller with a touchscreen display and control of 4 pumps.

Energy-efficient gear motor with automatic reverse function in case of fuel feed blockage.

This boiler is an excellent choice for those seeking reliable, cost-effective, and easy-to-use heating equipment with automatic control capabilities.