On 2008-07-25 20:44:57 +0100, Hugo Nebula abuse@localhost said:
On Thu, 24 Jul 2008 10:51:28 -0700 (PDT), a particular chimpanzee,
Andy Dingley randomly hit the keyboard and
produced:
On 24 Jul, 13:15, JP Coetzee wrote:
This is a cute demo calculator that's worth a play with:
http://www.ybsinsulation.com/timberf...lculations.htm
Yes, but don't believe a word of it, though.
Multi-foils have been caught out in recent years lying through their
teeth about the performance of their materials. Some manufacturers
have had it tested properly, and use resistance figures of ~1.7mēK/W;
YBS I notice still quote the very discredited 6.1mēK/W. Real world
testing has been done proving that anything more than 1.7mēK/W is
bull****.
So no better than a rather thin sheet of Celotex?