@POLLILLA:
The Theme The Temmed has distinguished Use The most usual is that it refers to that it is neither cold or hot, therefore it is in the midpoint (Google source)
Our colleague "Sacapuntas" tells us that it does not lift the needle of the temperatua bunda as 8 to 10 min approx and that the air of the calfaction comes out temperate
which indicates that there is a further level of temperature. Avoter thermostat, which leaves the water constantly circulates and does not meet the function of maintaining an adequate temperature of work, if it observes well in my first response and said that to our colleague, and in the second I explain that it would happen in the opposite case and how to determine the opposite case with a good method to know if the thermostat (in a case of the problem that our colleague has)