Thanks for the quick response quark !
Unfortunateley , the link given just leads to dead pages. I understand you thinking this is a simple problem but maybe I should expand slightly.
The platform I am looking at is a large surface area and will be exposed to extremeley low ambient temperatures...
Without going into to much detail, I am doing some ground work on how to heat the surface area of an elevated platform. I have scoured all my heat transfer texts (not many as a mech.production engineer) and can only find equations relating to pipelines,fluid flow etc... and not a static flat...
