I have just had a further thought ' thought bubble floats above head ' -=20
why not adapt the heating band from those cheap slowcooker utensils or=20
something similar, baby bottle warmer perhaps. If you haven't pulled an=20
'Aldi' style slow cooker to pieces, all it consists of is nichrome wire=20
embedded in a wrap-around heat transfer carcase (it isn't totally flexible=
=20
as in bendy, but does have a lot of give to it) that is glued to an inner=20
metal wall, which subsequently transfers the heat to the ceramic/china bowl=
=20
inside.

It seems to me, that if the correct diameter could be found for your tube=20
(what diameter is your copper pipe?), this could just wrap around, apply=20
current as needed.

Colin
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cdb, colin@btech-online.co.uk on 7/06/2013
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