My boiler apparently was leaking carbon dioxide and was condemned by British Gas. It was replaced by a Worcester Greenstar Ri in early feb, for 6 wks gas =£170 and my house was still very cold. If the heating was wacked up on full it only put the house temp up by 4degrees max. British Gas have been back and say it's my house as the rads heat up. I can't get my head around the fact that with a 25yr old boiler my house was always warm and my bills were cheaper.....nothing has changed about my house and the rads are the same old rads. Can anyone give me an easy explaination as to why I can't get warm?? I just wish I could go back in time and insist that the old boiler be mended!!