Solid fuel boiler with manual loading DEFRO OPTIMA KOMFORT PLUS A 10 kW

DEFRO OPTIMA KOMFORT PLUS A – energy-efficient long-burning solid fuel boiler

DEFRO OPTIMA KOMFORT PLUS A is a modern solid fuel boiler designed for heating private houses and cottages up to 100 m². This model represents a new generation of heating systems, equipped with an electronic control unit with a PID controller. The air supply is regulated by a blower fan, which controls the fuel combustion speed, maintaining a stable coolant temperature not exceeding 85°C.

If the coolant temperature exceeds the set parameters, the system automatically reduces or completely stops the air supply, allowing efficient combustion process management and fuel saving. Distributed air supply ensures maximum efficient fuel combustion at all power levels.

The boiler also supports the connection of a temperature sensor for controlling the indirect heating boiler and is equipped with two circulation pumps – for heating and hot water supply.

Advanced control system

K3P controller with mixing valve control

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

DEFRO-MZ controller for the mixing valve with weather-dependent regulation

Additional modules: GSM, Internet

KDR 3 NZ version for closed-type systems

Fuel flexibility

DEFRO OPTIMA KOMFORT PLUS A supports various types of fuel, making it a universal heating solution:

Top loading (burning from the top): coal fines.

Bottom loading (kindling from the bottom): wood, eco-peas, briquettes, chips, coal.

Key advantages of the boiler

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

High efficiency – up to 83%, achieved through efficient heat exchange and rational use of flue gas energy.

Reliable thermal insulation – mineral rock wool is used between the casing and the heat exchanger, as well as in the furnace doors, preventing burns during maintenance.

Movable grate – facilitates cleaning from ash and coke and improves air circulation for increased combustion efficiency.

Mechanical cleaning system – an integrated foot pedal activates special teeth that break the slag crust, ensuring better air access to the fuel.

Optimized flue gas removal – a smoke duct with an adjustable damper allows controlling the chimney draft, affecting the combustion process.

Simple cleaning – convenient access to the heat exchanger and chimney simplifies maintenance and extends the boiler's service life.

Ideal heating solution for:

Private houses and countryside cottages

Warehouses and production facilities

Small commercial premises

Additional advantages

Fuel savings due to high heat emission and precise power control.

Operational flexibility – the ability to work with various types of fuel.

Compatibility with automated control systems – support for draft regulator and blower system.

Safety and durability – high-quality materials and well-thought-out design ensure reliable operation for many years.

DEFRO OPTIMA KOMFORT PLUS A is a modern, reliable, and highly efficient boiler that will provide comfortable and economical heating for your home!