The device works to my complete satisfaction. Warm shower or hot bath - performance is more than adequate. I can remotely the temperature by a blanket (device is installed in the basement) rules, it is more convenient but about the mixer. I can already hear the outcry - mix expensive heated water again with cold? Yes, in total energy consumption remains the same. Mixing in cold water one need correspondingly less hot. Right?!?)) The device is also very compact. The connection I have left to craftsmen.