I recently attended a "class" but it was really a sales pitch.
I want some fairly thorough knowledge before I even think
about buying a tool. There seems to be a lot of sales bs
thrown around--how to use combustion analysis to scare
homeowners into buying a new system. I want none of that.
I want MY HVAC life to be easier, to be confident and relaxed about
my spotting and troubleshooting (and not misdiagnosing)
furnace issues. So I would like a book I could read and
re-read, and then maybe a good class. Flying to a class
is not realistically an option. I'm in northern California.
I can't see youtube videos but would also be interested
in a decent (thorough) DVD package if something like that