Why do we need TMVs (Thermostatic Mixing Valves)?

Browse through the whole TMVs Caleffi line: bit.ly/TMVs-Caleffi-EN !
The thermostatic mixing valve is used in systems that produce
domestic hot water.
It is designed to maintain the preset temperature of the mixed water
delivered to the user outlet, when there are variations in the
temperature and pressure of the hot and cold water at the inlet, or
in the drawn-off flow rate.

[@handle1196]

Do these need to to every hot tap in a new build house or can you fit just one or two after the hot water tank to serve them all?

[@altecniclimited947]

Good afternoon Dan. These mixing valves are designed as point of use so should be fitted directly to a bath to protect from full-body immersion and to washroom outlets such as wash hand basins. There is no requirement for this on kitchen sinks as higher temps are required for the breakdown of food matter and grease. If you have any further questions you can call the Altecnic tech team (UK branch of Caleffi) on 01785 218 206. Thanks for the question, Ed.