15-10-2013, 07:53 AM
Does sound like that second stat is the problem due to it being on the cold side, ie after water has cooled in the rad. If it's say an 80 degree stat, even if the water is 100 degrees going into the rad it'll probably be less than 80 degrees coming out, with a brand new rad...
And are you sure it's 100% air free?
And are you sure it's 100% air free?