In an earlier contribution to this discussion,
Lobster wrote:


Or even the rads themselves, if they are as old and crabby as two of
ours were when we had a sealed system fitted a few years ago: both of
them 'blew' without warning a couple of days later; ie a hole
appeared - in the middle of a panel - and just about flooded out the
house.

I thought that one of the features of sealed systems was that - in the event
of a leak - they should only spill a couple of litres of water before
running out of pressure. Is this not so?
--
Cheers,
Set Square
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