i have just had a new boiler fitted and had the system changed to a sealed heating system. It is all working fine and i am very happy with it however there always seems to be air collecting in my towel rail in the upstairs bathroom.
Any ideas on why this is and how i can stop it from happening.
Thanks in Advance for your help.

Dave, February 2009

This is because your towel rail is probably the highest point in the system so any air in the system will rise to the highest point, persist with the bleeding and repressuring the boiler and it will eventually right itself

STE, February 2009