Surely what you need is a heat pip behind it attached to a large black lump
of something then you can just stick a radiator on the other end and slavage
the lost heat... Well its as scientific as the thread title!

Brian

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Brian Gaff -
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"Davey" wrote in message
...
On Tue, 08 Nov 2011 08:35:24 +0000
Hugh - Was Invisible wrote:

On 08/11/2011 01:38, Grimly Curmudgeon wrote:
url:http://www.buy4now.ie/woodiesdiy/pro...=P&catid=110.0

Reflecting cold? That's an interesting concept.

Reminds me. Under the lounge window we have a radiator about 8 feet
long with a solid 9 inch block wall behind it. Could do with some
reflective insulating stuff behind it.

I need some as well, but I can't find any that is thin enough to slip
back there. It's either too thick and won't fit, or comes in a roll from
the kitchen dept. of Morrisons. Maybe I need to start glueing foil to
cardboard.
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Davey.