lämmitysyhteenliittymä

A lämmitysyhteenliittymä, often translated as a heating connection or heating interface, is a point in a building's heating system where the district heating network or an individual heating source connects to the building's internal distribution system. This connection is crucial for transferring heat from the source to the radiators, underfloor heating, or other heat emitters within the building.

In the context of district heating, the lämmitysyhteenliittymä is typically located in a technical room or basement of the building. It usually comprises a heat exchanger, control valves, pumps, and metering devices. The heat exchanger transfers thermal energy from the hot water circulating in the district heating network to the building's own heating water loop, ensuring that the district heating water does not directly enter the building's plumbing. This separation also allows for different operating pressures and temperatures between the two systems.

The control valves at the lämmitysyhteenliittymä regulate the flow of heating water into the building, based on the temperature set by the building occupants or an automated system. The metering devices, such as heat meters, measure the amount of energy consumed by the building, which is then used for billing purposes. In systems with individual heating sources, like a boiler, the lämmitysyhteenliittymä serves a similar function of connecting the source to the internal distribution network, though the components might differ. The design and components of a lämmitysyhteenliittymä are vital for efficient and safe operation of the building's heating.