I have just replaced an old single rad with a double. Whilst installing it I fitted a trv to the return side of the rad which is a Regis valve from B&Q. I have refilled the boiler(combi) and bled all the other rads. Now when the heating comes on in the morning I can hear the new rad gurgling for about two or three minutes. Can anybody tell me what the issue may be.
Thanks in advance Dave[/url]
Thanks in advance Dave[/url]