prEN 12897-1
Water supply - Indirectly heated unvented (closed) hot water storage tanks - Part 1: General specifications and common test methods
Draft Public enquiryProject stage codes
1. Prioritetinių darbo temų pažymėjimas ir ekspertų skyrimas
2. Projektas
3. Viešoji apklausa
From 2026-05-08
till 2026-07-07
4. Closure of enquiry
5. Submission to Formal Vote
Organisation
CEN Europos standartizacijos komitetasICS
91.140.65 - Water heating equipmentTechnical Committee
TK 29 Water supplyForeignTC'S
CEN/TC 164Number of comments
0Comment start date
2026-05-08Scope
This document specifies the general specifications, constructional requirements and common test methods for indirectly heated, unvented (closed) hot water storage tanks of up to 2 000 l volume suitable for connection to a water supply at a pressure between 0,05 MPa and 1,0 MPa (0,5 bar and 10 bar), and fitted with control and safety devices designed to prevent the temperature of the stored drinking water from reaching 95 °C. Whilst storage water heaters intended primarily for direct heating are not covered by this document, it includes the possible provision of backup immersion heaters.