ErP Directive

Energy-related Products (ErP) Directive (2009/125/EC Directive)

Since 1 August 2015, stand-alone circulators and circulators integrated in products have an energy efficiency index (EEI)* of not more than 0.23. Product means an appliance that generates and/or transfers heat.

Examples can be:

  • Hydronic heating and secondary cooling circuits
  • Boilers
  • Heat pumps
  • Combined heat and power stations
  • Solar thermal systems
  • District heating house stations
  • Assembly kits for radiator or under floor heating systems
  • Secondary hydronic cooling distribution and heat recovery circuits
  • DHW system boiler

From 1 January 2022, also all replacement circulators for identical circulators integrated in products before August 2015 shall have an energy efficiency index (EEI) of not more than 0.23.

After these dates, Wilo is no longer allowed to bring circulators not fulfilling these EEI values into the European market.

The EN 16297-1 & EN16297-3 describe how to measure the EEI. The measurement procedure for integrated circulators takes into account various integrated functions available in the numerous customised hydraulic solutions.

Circulators NOT affected by new legislation: ‘Drinking water circulators’, except with regard to information requirements of Annex I, point 2(4). ‘Drinking water circulator’ means a circulator specifically designed to be used in the recirculation of drinking water as defined in Council Directive 98/83/EC.