"Simon Hawthorne" wrote in message
...
On Sat, 20 Nov 2004 17:13:56 -0000, "IMM" wrote:

It almost certainly has gravity hot water with an old cast iron boiler
like
that. At least it has zoning of upstairs and downstairs.

Thanks IMM

Should the pump always run then - even when the room stats have closed
the zone valves?

Does it?