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Solid fuel boiler with automatic loading STALMARK MINI 25 kW
The STALMARK MINI 25 kW is a universal solid fuel boiler with automatic feeding, designed for heating private houses, cottages, and small production spaces. The model combines cost-efficiency, reliability, and ease of use, making it an excellent choice for autonomous heating systems.
Advantages
▪️ Efficiency of 89.2% – high energy performance, allowing up to 40% fuel savings compared to gas systems.
▪️ Reduced heating costs – 2–4 times lower than gas or diesel heating.
▪️ Eco-certified – meets European environmental standards.
▪️ Certified steel body – ensures strength and long service life.
Ease of use
▪️ Piston feeder – precise fuel dosing and stable combustion.
▪️ Automatic ash removal and simple maintenance.
▪️ Supports various fuel types – fractions up to 4 cm and wood when needed.
▪️ Temperature regulation manually or via draft regulator.
Additional features
▪️ Option to connect a heating coil for domestic hot water without a separate boiler.
▪️ Optional fan and electronic controller for enhanced comfort.
▪️ Horizontal flue tilt technology – ensures stable operation even with weak draft.
✅ STALMARK MINI 25 kW is a reliable and energy-efficient boiler that provides stable heat and hot water with minimal operating costs.
| Power, kW: | 25,0 |
| Heating surface, m²: | 250 |
| Loading type: | Automatic |
| Efficiency, %: | 89,2 |
| Metal thickness, mm: | 6,0 |
| Combustion chamber dimensions, mm: | 250x150x290 |
| Boiler water volume, litres : | 90 |
| The volume of the combustion chamber, l: | 130 |
| Width, mm: | 452 |
| Depth, mm: | 1394 |
| Maximum pressure, bar: | 1,5 |
| Fuel type: | Solid |
| Chimney diameter, mm: | 180 |
| Number of circuits, units: | 1 |
| Installation method: | Vertical |
| Coutry of brand: | Poland |
| Destination: | Heating/water supply |
| Automatic loading: | Yes |
Product catalog 
