Hot water supply system (DHW) (definition)

Hot water supply system (HWS) — is a system designed to provide hot water in buildings and structures, which operates in conjunction with heating systems from a single heat source. It includes equipment and pipelines that provide heating and distribution of hot water for various needs, such as sanitary and hygienic procedures and technological processes.

Hot water supply system: main installation features in combination with heating systems from one heat source:

1. General heat source:
   • Sharing: In systems where heating and hot water supply are served by one heat source (e.g. boiler), it is important to ensure the correct distribution of thermal energy between the two systems. The boiler must be able to simultaneously heat the water for heating and hot water supply.
   • Thermal accumulator: Can be used to improve efficiency and ensure stable operation heat accumulator, which accumulates excess heat for subsequent use in the DHW system.
2. Installation and connection:
   • Separation of contours: It is important to properly separate the heating system and the DHW system circuits to avoid cross contamination and ensure optimal operation of both systems. Special units and mixing valves are used for this purpose.
   • Installation of a boiler: Boiler or heat exchanger for DHW can be built into the heating system or installed separately. It must be connected in such a way as to effectively receive heat from a common source and transfer it to the water in the DHW system.
3. Technical solutions:
   • Mixing units and pump groups: Used to regulate the temperature and pressure of water in hot water supply and heating systems, ensuring optimal heat distribution and preventing overheating or overcooling.
   • Control and automation: It is important to implement a control and automatic monitoring system that will maintain the required hot water temperature and ensure efficient use of heat. This may include thermostats, temperature sensors and control systems.
4. Efficiency and savings:
   • Operation optimization: Using a single heat source for heating and hot water supply together can reduce operating costs and improve overall system efficiency. This allows for more efficient use of energy resources and reduced fuel costs.
   • Energy efficiency: The use of a heat accumulator and control system allows for the optimization of the heat source, resulting in more efficient energy consumption and reduced costs.
5. Maintenance and repair:
   • Regular maintenance: To ensure reliable operation of the hot water supply and heating system from one heat source, it is necessary to regularly service and check all system components, including boiler, pumps, pipelines and control devices.

Features of hydraulic piping

A hot water supply system integrated with a heating system from a single heat source requires careful planning and installation. Proper separation of circuits, the use of mixing units, boilers and automatic control systems ensure the efficient operation of both systems, maximising energy savings and increasing overall comfort.