We all should have the HVAC Engineer, teh Piping engineer, etc of the year, similar to these Architects, journalists, actors, writers, etc.. Tapping ouselves in the back sort of.
And in this forum, we can all nominate AbbyNormal as the best helping Engineer for the year.
Happy new year to you all and a special thanks to AbbyNormal for taking the time to provide his expertise to all of us (even pasting some old well used references...)