"Owain" wrote in message
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On 25 Sep, 10:43, "michael adams" wrote:
The water in all central heating systems is circulated by a pump.

Unless it's an unpumped system relying on gravity/thermosyphon

Owain


I'm talking about the real world. Not Googleland, as populated by hippies
and similar middle-class dropouts and yoghurt munching wannabees with solar
panels on their roofs. The same types who are always banging on about
Linux and how wonderful it is, as they sit there shivering in the middle of
winter.


michael adams

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