On Thu, 24 Nov 2005 13:50:41 +0000, David Hansen
wrote:

On Thu, 24 Nov 2005 12:13:59 +0000 someone who may be Peter Parry
wrote this:-

Over the whole years solar may produce substantial heat,

It may, however it doesn't, there are many summer days where the
output is negligible.

So you assert.

So I have measured over many years. On a cloudy, rainy summer day
the output was very low and inadequate by itself to provide hot
water. Those conditions sometimes prevailed for several days on the
run between late spring and early autumn.

Perhaps you are claiming that the comments at
http://www.solartwin.com/comments.htm are all made up?

It isn't that uncommon for such comments to be entirely made up - a
glance at any national double glazing or kitchen fitting companies
web site will provide you with examples.

However, assuming they are real, do you really think they represent
the full range of responses or do you think there is just a slight
possibility the company selling the gizmos and also publishing the
letters would only select the favourable comments to publish?


--
Peter Parry.
http://www.wpp.ltd.uk/