"Doug Miller" wrote in message
...
In article
,
harry wrote:


Radiators made in Europe are indeed made of pressed steel. Cast
iron
radiators went out in the 1950's. They rely on the water inside
being
chemically treated to prevent corrosion.

Untrue. In a closed system, once all of the dissolved oxygen
reacts with the
iron, no further oxidation will take place (unless additional
oxygen is
introduced later).

The cast iron radiators are most likely used on a single pipe
system, along with an open sump. Air is introduced at the sump
and if the water isn't treated, it can cause excessive rusting.
Yes, closed systems are different, though.

--
Nonny


Luxury cars now offer a great seating option for politicians.
These seats blow heated air onto their backside in the winter and
cooled air in the summer. If sold to voters, though, the car
seats
are modified to just blow smoke up the voter’s rump year-round