Coal boiler Atmos KC25S

The Atmos KC25S is a powerful coal gasification boiler that is primarily operated with coal, but can also efficiently use logs as a substitute fuel.

The Atmos KC25S coal-fired boiler was specially developed for heating single-family homes, weekend and country cottages, workshops, and similar properties. The boiler body is made of high-quality, 6 to 8 mm thick sheet steel, which ensures significantly better heat transfer compared to cast iron boilers. Furthermore, the KC25S offers a reliable and flexible solution for anyone looking for a modern alternative to older cast iron boilers such as the GK21, GK31, or K30 models.

With its sophisticated gasification technology, this coal-fired boiler enables efficient combustion of lignite briquettes, hard coal, and logs. Thanks to its innovative design, the Atmos KC25S achieves an impressive efficiency of up to 86%. At the same time, it meets all current requirements of the Federal Immission Control Ordinance (BImSchV) and is therefore fully approved for operation in Germany.

Advantages: Coal boiler Atmos KC25S

• Sophisticated gasification boiler for various fuels, ideal for coal and wood
• Ceramic combustion chamber with rotatable, durable cast iron grate
• Efficient secondary air preheating ensures optimal combustion and rapid power development even during the heating phase
• Cast iron grate in a ceramic bowl – innovative design specifically for the clean and effective gasification of lignite briquettes and hard coal
• Easy cleaning of the combustion chamber and the exhaust duct thanks to the integrated tube heat exchanger
• High efficiency of up to 86% reduces fuel consumption and emissions
• Modern, contemporary design with an attractive price-performance ratio

Technical data

• Energy efficiency class C
  
• Boiler class 3
  
• Nominal heat output: 26 kW
  
• Efficiency: up to 86%
  
• Tensile force: 20 Pa
  
• CO content: 371 mg/m³
  
• Dust emission: 4 mg/m³
  
• Approved fuels: coal, logs
  
• Maximum firewood length: 330 mm
  
• Exhaust gas temperature: 240 °C
  
• Exhaust gas mass flow: 0.015 kg/s
  
• Dimensions (HxWxD): 1185 x 675 x 758 mm
  
• Flue pipe connection: 150/152 mm
  
• Weight: 303 kg

Scope of delivery

• ATMOS KC gasification boiler
• modern chimney regulator Honeywell
• Cleaning accessories for easy care
• an ash container
• a filling tap
• comprehensive assembly and operating instructions