On Wed, 14 Nov 2012 22:03:17 -0000, John Williamson wrote:

Lieutenant Scott wrote:
On Wed, 14 Nov 2012 21:40:13 -0000, John Williamson
wrote:

Lieutenant Scott wrote:
On Wed, 14 Nov 2012 21:16:51 -0000, John Williamson

It was by the normal standards of the day. Normal bore central heating
was about 2 inches diameter and circulation was ensured by convection.

No pump?

That's what circulation by convection normally means, yes.

I thought maybe you meant assisted by convection.

That sounds a good idea, 1 less pump to go wrong. I assume it wasn't so
effective at getting the water round quickly.

Hence the large pipe bore. The problem was that it made it a right b1tch

A b1tch? Are we in America?

to fit in most homes, so central heating was the exclusive preserve of
the rich and premises such as hospitals and schools.

I've seen such huge pipes in old commercial buildings. I had always assumed the big pipes were because it was a big place with lots of radiators to feed.

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