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Re: [Distillers] Re: ice chest as boiler

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  • bertsaal
    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
    Message 1 of 3 , Nov 23, 2003
      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.
      bert
      ----- Original Message -----
      From: Harry
      To: Distillers@yahoogroups.com
      Sent: Friday, November 21, 2003 9:38 PM
      Subject: [Distillers] Re: ice chest as boiler


      --- In Distillers@yahoogroups.com, "iamme9182" <iamme9182@y...>
      wrote:
      > ok i have the top end built out of 2" copper pipe, ive also got a
      48
      > quart ice chest i think im going to use as a boiler as its
      insulated
      > well already. the problem im having is i need to put a hole in
      the
      > 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
      it
      > will be around the base of a waterheater element that will be
      about
      > 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.

      Slainte!
      regards Harry


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