Quote:
Originally Posted by Paul Haese
I don't think it provides any real insulative aspect. Mybe just a tad more than normal but not enough of any real significance. I was just trying to increase the contrast. However it may well keep the cooled air within a certain temperature gradient. I have not looked into this but you never know.
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I think you'll find that just by virtue of providing an air gap you will gain an insulation value of at least R0.2, pretty much irrespective of the materials you use.
fwiw) R0.2 is by definition 5 watts of thermal conductance per square meter per degree C temp differential.... so it approximately halves the thermal conductance of a standard steel tube.
The key here is to prevent the flocking material from making physical contact with the tube assembly, thereby avoiding direct conductance.
(think double glazing)
~c