Das Water Efficiency Label


on the webpages of TELL.

TELL is a product classification system of the European thermostatic radiator valve industry, which
  • fulfils the increasing and understandable desire of consumers, both in Europe and worldwide, for information and guidance in making a conscious purchasing decision.
  • implements the industry's desire to promote responsible energy usage by consumers.
TELL subscribes to the following guiding principles:
  • The user or operator must be able to detect an immediate, actual saving if a more efficient valve is installed.
  • The evaluation system must set international standards.
  • The evaluation system must be easily understandable.
TELL green and the new blue WELL

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