prEN 17692

Central heating boilers - Main specification for indirectly heated unvented (closed) metallic pressurized buffer tanks - Requirements, testing and marking

General information

40.60 Close of voting   Sep 30, 2021


CEN/TC 57 Central heating boilers

European Norm

91.140.10   Central heating systems


This document specifies the essential terms, constructional requirements, tests, energy assessment and marking of indirectly heated water storage tanks for primary water (buffer tanks), with a capacity not exceeding 2,000 litres, an operating temperature not exceeding 95 °C, and an operating pressure not exceeding 1,0 MPa.
This document covers metallic and plastic made buffer tanks.
Although this document does not consider any buffer tanks mainly intended for direct firing, it allows for the provision of electric heating elements for auxiliary purposes.
NOTE The energy assessment is performed by EN 15332.

Related legislation

Legislation related to this standard


Commission Delegated Regulation (EU) No 812/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of water heaters, hot water storage tanks and packages of water heater and solar device


Commission Regulation (EU) No 814/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for water heaters and hot water storage tanks

Life cycle


prEN 17692
40.60 Close of voting
Sep 30, 2021