Solid fuel boiler with manual loading DEFRO OPTIMA KOMFORT PLUS A 15 kW

DEFRO OPTIMA KOMFORT PLUS A is an innovative solid fuel boiler designed for heating private houses and cottages with an area of up to 120 m². This model belongs to a new generation of heating systems, equipped with an intelligent control unit with a PID controller.

The automatic air supply system, controlled by the blower fan, regulates the combustion process, maintaining a stable coolant temperature at a level not exceeding 85°C. If the temperature exceeds the set values, the system automatically reduces or completely stops the air supply, which increases energy efficiency and reduces fuel consumption.

The optimal distribution of air by zones ensures complete fuel combustion in various operating modes. The boiler also supports connecting a temperature sensor for controlling the heating of an indirect heating boiler and is compatible with two circulation pumps – for heating and hot water supply.

Intelligent control system:

K3P controller with mixing valve control function.

S3P driver (in the 8 kW model, the ST-28 OPTI PID is used).

DEFRO-MZ – weather-dependent mixing valve controller.

Support for additional modules: GSM, Internet.

KDR 3 NZ version for closed heating systems.

Compatibility with various types of fuel:

Top loading (top combustion): coal fines.

Bottom loading (bottom ignition): wood, eco-pea coal, briquettes, chips, coal.

Main advantages of DEFRO OPTIMA KOMFORT PLUS A:

High-strength heat exchanger – made of certified heat-resistant boiler steel P265GH (6 mm thick, Arcelor Mittal, Poland), ensuring durability and resistance to high temperatures.

High efficiency – up to 83%, achieved thanks to a thoughtful design and efficient use of the heat energy of flue gases.

Reliable thermal insulation – mineral wool insulation is used between the heat exchanger and the housing, preventing burns on contact with the boiler surface.

Mechanical cleaning system – an integrated foot pedal activates special teeth that destroy the slag crust, improving air supply and increasing combustion efficiency.

Moving grate – simplifies the removal of ash and coking, improving air circulation.

Optimized flue gas outlet – the flue duct with a control damper allows precise control of the chimney draft, affecting the intensity of combustion.

Ease of maintenance – convenient access to the heat exchanger and chimney simplifies the cleaning process, extending the boiler's service life.

Applications:

Private houses and country cottages.

Storage and production facilities.

Small commercial buildings.

Additional benefits:

Economy – rational fuel consumption reduces heating costs.

Flexibility in operation – the ability to work on various types of solid fuels.

Automated control – support for draft regulator and blower system.

Safety and durability – thoughtful design and high-quality materials ensure reliable and stable operation for many years.