I have recently bought some cast iron radiators to fit into a new build and have been told by the plumber that they are significantly more expensive to run that the standard modern radiators. Is this really true?
I understand that the larger the radiator, the more expensive it is, but on a like-for-like basis, are modern radiators more energy efficient that old cast iron ones?
I understand that the larger the radiator, the more expensive it is, but on a like-for-like basis, are modern radiators more energy efficient that old cast iron ones?