In article ,
"Peggy Johnson" wrote:

David,
I have been in the Design/Build mechanical contracting business for 30+
years, have had up to 130 employees at a time. I have been reading these
posting for a long time, and firmly maintain these are not professionals as
they claim but are simply uneducated wanna-bes. This is the reason they will
not answer your question. It's not that they won't, it's that they can't.

Obviously you haven't "been reading these posting for a long time" or do
HVAC/R as a living because you would know why they aren't getting an
answer.

You're either stupid or lying. Fess up TJ. Which is it?