Jim,

On Mon, 30 Apr 2007 21:44:24 +0100, Jim wrote:

> 1.  I am sure that the thermal properties of the glass are not as good as
> those of my bricks and mortar/airgap more bricks and mortar, plaster and
> wallpaper. 

Not even in the same league - the best double glazing passes about ten times as much heat as the worst brick wall!

Cheers,


Howard Winter
St.Albans, England


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