"David Hansen" wrote in message
...
On Sun, 14 Oct 2007 18:20:32 +0100 someone who may be John Rumm
wrote this:-

Even if is saves you £100/year that would still be a 50 year payback.

Simple payback period is not the only reason for doing something.
What is the simple payback period on a new kitchen, or replacing
fluorescent kitchen lights with downlighters?

Or a bottle of wine or bar of chocolate - or a newspaper - or almost
anything people choose to have.

Mary