Open combustion chamber with natural draft

Open combustion chamber with natural draft - this is a type of chamber in heating systems boilers, where the fuel combustion process occurs with free air flow from the room, and the removal of combustion products is carried out due to natural draft through the chimney.

Open combustion chamber with natural draft: main features

1. Air supply:
   • The air for combustion of fuel comes directly from the room in which the boiler is installed. This means that the boiler "takes" oxygen from the environment to support combustion.
2. Natural traction:
   • Combustion products (smoke, gases) are discharged through the chimney without the help of fans or other mechanisms. The movement of smoke gases occurs due to the temperature difference between the hot gases inside the chamber and the cold air outside - this is called natural draft.
3. Chimney:
   • For normal operation of a natural draft boiler, a properly designed and installed chimney is required. The height and diameter of the chimney must be calculated in such a way as to provide the necessary draft for effective gas removal.
4. Energy independence:
   • Boilers with an open combustion chamber and natural draft do not require electricity to operate, as they do not have fans for air supply and smoke removal. This makes them energy independent and suitable for use in conditions where power outages are possible.
5. Simplicity of design:
   • Boilers with an open combustion chamber, as a rule, have a simple design without complex control systems and electronics, which makes them more reliable and durable.

Advantages:

• Simplicity and reliability of design.
• Energy independence - does not require connection to the power grid.
• Suitable for installation in places with frequent power outages.

Disadvantages:

• Dependence on the quality of natural draft, which can change depending on weather conditions.
• The need to install the boiler in a well-ventilated room, as it requires a constant supply of fresh air for operation.
• Lower efficiency compared to closed-type boilers, since warm air from the room leaves through the chimney.

Open combustion chamber with natural draft It is often used in simple heating systems that do not require complex control over combustion processes and do not have high energy efficiency requirements.