A direct system is a heating system where the heat emitters are directly connected to a boiler or district heating system. This means, that the district heating water is supplied directly to the consumer’s radiators or other heat surfaces.
Discharge flow is the assumed flow from discharge units. Normally, it refers to the flow entering a pumping station. It is typically expressed in litres per second or cubic metres per hour.
Disinfection is an essential step in a water treatment process. Depending on the method and water quality, different by-products are generated which could affect the final water quality.