If you have any other questions, after having read the information provided on this website, the OpenTherm Association’s secretariat can provide more information on the OpenTherm communication standard and the compatible products.

Watts EMEA Holding B.V. is a European division of the international holding Watts Water Technologies. Watts is a leading manufacturer and provider of products and solutions used in water protection, sanitation, HVAC, instrumentation and climatic electronic.

Every effort has been made to ensure that the information on this website is correct. Crane Ltd. assumes no responsibility or liability for typographical errors or omissions or for any misinterpretation of the information on the site and reserves the right to change without notice. All images on Crane BS&U web sites are the exclusive property of Crane Ltd and are copyrighted and may not be reproduced, copied, transmitted or manipulated without written permission. All images shown are for illustrative purposes only, actual product may vary. Crane BS&U has no direct influence on, or take any responsibility for any working practices employed or depicted in any image(s).

Thermostatic Mixing Valves blend hot water (stored at temperatures high enough to kill bacteria) with cold, to ensure constant, safe outlet temperatures preventing scalding.

Predominantly used in the healthcare industry, Thermostatic Mixing Valves are installed in situations where there is a high risk of scalding i.e. hospitals, care homes & schools.

OpenTherm is a non-manufacturer-dependent system of communication between modulating HVAC appliances and room thermostats. It consists of a communication protocol and an interface specification.

Membership is open to all companies and organizations which are active in the manufacture, distribution or installation of heating systems and components.

The OpenTherm communication protocol is primarily designed to control modulating heating appliances. The protocol is available to members of the OpenTherm Association only.