I have had a number of clients complain about HVAC control in their homes. Generally, there is a room that they say is too hot of cold (depending on the season.) Several have thrown out different numbers as “official” allowable temperature differences within the home - 4 degrees, 6 degrees etc.
I have not been able to find a specific differential number like this. Is there such a number/rule? If so, where are the reading supposed to taken at?