On Mon, 12 Jan 2004 23:34:26 GMT, "BigWallop"
wrote:


"Andy Hall" wrote in message
.. .
On 12 Jan 2004 11:23:48 -0800, (RJ) wrote:

snipped

If so, then it's possibly a flow switch, pressure switch or thermostat
or something like that.


I think he meant this red thing:

http://www.basecsys.pwp.blueyonder.co.uk/tank3.jpg



Nope, he already mentioned that he realised that this is the CH
expansion vessel.

The one on the top appears at first sight to be an immersion heater,
but when you look more closely, I don't think that it is.


..andy

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