So how is this any different to the hot water heaters for roofs that many
already have. A friend of mine has one and it seems to save money, but of
course there is the capital outlay, the need to keep them clean and any
possible issues when they go wrong.

Brian

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"dkol" wrote in message
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"Tim Streater" wrote in message
.. .
In article ,
fred wrote:

How effective are these ? Are they much of an improvement over the old
types ?

What are "Thermodynamic Solar Panels" ??

https://en.wikipedia.org/wiki/Thermodynamic_solar_panel