I thought exactly that when I saw it... I mean... SIX months to steal barely anything compared to what they could have earned with a minimum wage job. I guess people have to have hobbies, haha!
Great advice... I followed these and had the same problem and found a bloody great cotton reel in one of the pipes (got it second hand... I've never done a days sewing in my life!!)
anyone know if there's a guide for radiators online somewhere? Had the double glazing guys in and I think they must have messed with something and now they sound like they need bleeding