Re: [Distillers] Re: ice chest as boiler
- The heater elements out hot-waterketles are very suiteble. The have two differend safety measures in it, a bimetal and a melting switch, so if you keep them intact they do a great job.
----- Original Message -----
Sent: Friday, November 21, 2003 9:38 PM
Subject: [Distillers] Re: ice chest as boiler
--- In Distillers@yahoogroups.com, "iamme9182" <iamme9182@y...>
> ok i have the top end built out of 2" copper pipe, ive also got a
> quart ice chest i think im going to use as a boiler as its
> well already. the problem im having is i need to put a hole in
> side to put in the heating element. i am going to try to put a
> perfect sized hole for it but that is very unlikely :). is there
> anything i could seal this with thats not going to break down to a
> useless mush when its submerged in the boiling alcohol/water? also
> will be around the base of a waterheater element that will be
> 1375w i havent used it yet so im not sure how hot the base will be
> getting on it. so its got to be fairly heat resistant.
Due to that marvellous thing called "Heat Transfer" (physics/thermal
engineering), the temperature of all the components won't get much
above the temperature of the liquid you have them immersed in. This
scenario changes somewhat when the liquid begins to boil as there is
now a film of vapor on the element surface, but that's another field
of study, and not one we need be concerned with. Just don't ever
boil the element dry.
You can see this for yourself in any of the cheap plastic electric
hot-water kettles they sell in any chain store (and probably the
very thing you used this morning to make your cuppa). They mostly
have a 2200W element surrounded by plastic. Underwater, it works
fine, but if you expose the element, kiss it goodbye.
For sealing, use a non-acetic cure silicone. The one they use for
fishtanks is perfect, also I've used one called "roof & gutter
sealant" and it's just as good. The important thing is it must be
the non-acetic cure type. This product won't leach into your
alcohol, and had good temperature tolerance.
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