Glad to have you aboard...I think you will enjoy this site, I know I have.
Of course this is not a DIY site as that is against the rules for us to give DIY help or advice, but this is a great place to gain knowledge from pros as well as get questions answered and share with each other. If you are in the HVAC field, then apply for pro membership and if approved, then you can come to the pro section and swap technical advice with other pros.
Good luck and enjoy yourself.
The statement below is my signature and just my overall feeling towards our industry and does not necessarily pertain to you nor this thread.
There really isn't a legitimate excuse for not doing the job correctly!