On Thu, 24 Nov 2005 11:37:36 -0000, "Doctor Dribble"
wrote:

"Peter Parry" wrote

No, because it is trivially insignificant. If every house in the UK
went to solar water heating tomorrow it would have a negligible
effect upon world greenhouse gas emissions.

But a hell of lot locally. Imagine London full of solar panels on every
roof. The air quality would rise substantially.

How so?

If regs are introduced to implement solar then prices will come down and
everyone benefits and many ways.

You mean in the same way that if you approach a firm offering the
government grants for solar water heating you have to pay GBP2,000
over the odds for the installation to qualify for a GBP400 grant? Or
the way Part P has "lowered" the price charged by electricians for
domestic work?

Not running a boiler all the year round is not an advantage?

No, because the solar supply is unreliable - you still need
conventional water heating available. If you switch off the boiler
for the summer and rely upon a daytime immersion heater for the times
the solar water heating is inadequate the small saving it makes is
wiped out in a few days.

Nonsense. 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.

Panels from gutter to apex look good.

They do?

If it is DIYed using Navitron panels, then it IS viable.

So when are you installing yours to go with the hot air heating you
worship (but don't have)?


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