On Mar 11, 9:54*pm, (Doug Miller) wrote:
In article , harry wrote:

The only benifit of cast iron is it doesn't rust much.

As compared to copper or aluminum, which ... don't rust at all, actually.

*There are lots
of disadvantages. *As they are made in sections they often leak if
taken out and the joints are stressed.

Yeah, that's a pretty frequent occurrence, too, taking them out and stressing
the joints.

They are very expensive and
labour intensive to make.

What planet did you grow up on?

They heat up and cool slowly due to their
mass.

That is one of the biggest advantages.

Not true. Well maybe in America where things are still primitive.