He has set it to 70 max so it be blending much.
Kash that sets the water temp circulating in the UFH pipes & will give a very high floor surface temperature, the room stat is only picking up the room air temp.
Mixer stat is now back at 50.
I should have said that the other digital room stat is set to floor temp only. It has the option to be air temp, and and floor temp or floor temp only.