Herms Coil as a Chiller

Discussion in 'General Home Brew Equipment Discussion' started by Jordan West, Jan 20, 2019.

Help Support The Homebrew Forum UK by donating:

  1. Jan 20, 2019 #1

    Jordan West

    Jordan West

    Jordan West

    New Member

    Joined:
    Dec 11, 2018
    Messages:
    17
    Likes Received:
    3
    Been looking into the design of my 3 keg conversion system and saw a really good video of a system that used the herms Coil as the immersion chiller after the boil by filling the HLT with ice and water ... I thought after that wouldn't it be a good idea to add salt to the ice water to allow for cooler liquid... Or would that be bad in some way for the stainless steel /copper over time ??
     
  2. Jan 21, 2019 #2

    peebee

    peebee

    peebee

    Out of Control

    Joined:
    Aug 15, 2013
    Messages:
    1,194
    Likes Received:
    459
    Location:
    North Wales
    I designed my system to use the HERMS "coil" as a cooler. Made sense to me to have one coil as dual use. But my design uses a counter-flow heat exchanger so offers nothing that you might copy; except support for the concept! Corrosion could be a problem with salt, especially with copper, but as long as not storing damp it shouldn't be anything to worry about (I can't store my cooler dry, so it is stored full of water, which isn't the same as damp).
     
  3. Jan 21, 2019 #3

    jceg316

    jceg316

    jceg316

    Landlord.

    Joined:
    Sep 8, 2014
    Messages:
    1,545
    Likes Received:
    463
    I had a 2 vessel herms and used my stainless steel wort chiller as the heat exchange. I'd heat up sparge and mash water in my kettle with the chiller inside, then after mashing in the sparge water would remain in my kettle and act as the source of heat as I recirculated wort through the chiller. I'd then run my sparge water through the chiller to clean out any wort in there.

    I'd also use it as a wort chiller after the boil is complete.
     
  4. Jan 21, 2019 #4

    Bigcol49

    Bigcol49

    Bigcol49

    Landlord. Supporting Member

    Joined:
    Dec 26, 2015
    Messages:
    3,684
    Likes Received:
    2,065
    Location:
    Doncaster
    Hi!
    I would hesitate to do that - I am sure it would react with the copper ('O' Level Chemistry Grade 5 1971 :D)
    You don't need to get a super-cool liquid - just have a constant supply of ice ready to replenish the reservoir in the HLT
     

Share This Page