The benefits of decentralised generation of domestic hot water

Securing decentralised water quality – hot water without the risk of legionella

A Comparison between a 2-pipe system with heat interface units and a conventional 4-pipe system with central hot water preparation.

Decentralised heating of domestic hot water

  • Decentralised flow heating giving security to residential development heat network operating companies.
  • Saving on domestic hot water and circulation pipes from the central heating system to the residential units.
  • Low system temperatures in the building pipe-work network, as hot water pipes and circulation pipes are not required.

Centralised domestic hot water storage

  • Large storage system subject to mandatory testing by residential development landlords and property owners.
  • Increased effort for pipe network, as hot water pipes and circulation pipes are required.
  • High temperatures in the building piping network in order to maintain drinking water hygiene and avoid the risk of legionella.
  • *58 % energy saving with 2-pipe systems compared to central domestic hot water systems*

Further benefits

  • No need to store domestic hot water in cylinders.

Click here to view the Wilson HIU v Stored water whitepaper