T&T: Airlock on hydronic heating system

[Marty Campanella]

The question was asked as to getting rid of the airlock on a hydronic
heating system after have changed the water (coolant).  With my Espar unit I
installed several bleed points.  Valves were installed at all the high
points in the system.  This worked fairly well but I still had an airlock.
I used my IR thermometer to find the airlock and then figured out how to
bleed that section.  

Marty Campanella
Bay Pelican KK42