"Andy Hall" wrote in message
...
On Sun, 12 Oct 2003 14:50:49 +0100, "IMM" wrote:



Not necessarily. In a ferrous free system in a
soft water area there may be no problems at all.
In the USA this sort of thing is common. They pump
fresh water from cylinders around heating circuits.

There are non-ferrous radiators?

Aluminium. But copper skirting and Mysons are better.




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