I did try and make some financial justifications and with some very creative accountancy it kinda made sence.
I also tried justifying on the safty factor and again that kinda made sence
but the long and the short was I wanted one, it was shiney and look REALLY COOL so I bought one.
Once I had bought it I justified using the money I was going to fit double glasing with for a KISS by using the warm gas to keep me cosy during the winter (but I still get strange looks from the people passing the window when I'm sat infront of the TV on a wierd contraption!)
Fin