Closed heating system (definition)

Closed heating system - this is a type heating systems, in which the coolant circulates in a closed circuit and does not come into contact with the atmosphere. Such a system ensures reliable heat distribution and minimizes energy losses, as well as prevents contamination of the coolant.

Closed heating system: main aspects

1. Design:
   • Closed loop: In a closed heating system, all pipelines and components are connected into one closed circuit, in which the coolant circulates without contact with the outside atmosphere.
   • Blocking air access: The system is sealed, preventing the entry of air, which can cause corrosion and air locks.
2. Function:
   • Coolant circulation: A coolant, usually water or antifreeze, circulates through the system, transferring heat from the boiler to radiators or other heating devices.
   • Temperature adjustment: Allows you to maintain a stable temperature in the rooms, and also easily control and regulate it.
3. Advantages:
   • Efficiency: The closed circuit allows for efficient use of heat, minimizing energy loss.
   • Protection from pollution: The closed system prevents contamination of the coolant, which contributes to the durability of the system.
   • Less water loss: No need to refill water or other liquid, reducing the possibility of leaks and the need for maintenance.
4. Components:
   • Boiler: A heat source that heats the coolant.
   • Pipelines: They connect various elements of the system and ensure circulation of the coolant.
   • Radiators or convectors: Heating devices that give off heat to the room.
   • Expansion tank: Compensates for changes in the volume of the coolant during heating and cooling.
5. Installation and operation:
   • Installation: Installation of the system requires proper design and tightness of all connections to prevent leaks.
   • Service: Regularly check the system for leaks and possible problems, and ensure the correct pressure in the system.
6. Difference from open systems:
   • Closed system: The coolant does not come into contact with air and does not lose its properties over time.
   • Open system: Often has open expansion tanks which can lead to water loss, corrosion and contamination.

Application:

Closed heating system is widely used in residential, commercial and industrial buildings to provide efficient and reliable heating. They provide high comfort and energy savings by minimizing losses and pollution.