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Dropping to single digits F tonight

Discussion in 'Heating or Cooling of your AP system.' started by Robert123, Jan 7, 2014.

  1. Robert123

    Robert123 Active Member

    Joined:
    Jun 27, 2013
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    Country:
    USA
    State:
    South Carolina
    City:
    Woodruff
    Here's to real world testing of the heating in my Tilapia tanks out in the greenhouse. drinkanim

    Dropping to 9 F tonight and won't get back up to above freezing till noon the day after tomorrow. That is cold - cold for South Carolina. System was designed for sustained low teens with dips to below 10. Guess we'll see. :unsure:

    P.S. We have generator backup just in case the grid pushes up daisies. I hear parts of Texas are already having problems keeping up with power demand due to the temps.
     
  2. Robert123

    Robert123 Active Member

    Joined:
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    Country:
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    South Carolina
    City:
    Woodruff
    Temps at 7 am...
    Outside: 7 F (-14 C)
    Greenhouse: 32 F (0 C)
    Fish Tanks: 66 F (19 C)

    Temps a bit lower in the tanks than predicted, but my safety thermostat is cycling the heating coil on and off as anytime it senses 104 F on the stainless tee it cuts the power to the coil. The water flowing through the tee doesn't get that hot, but the metal at the base of the coil where I mounted the thermostat does. I put it that low just in case the controller failed, but that was a bad decision. I just need to let the controller do it's job and let the safety thermostat do it's job (cut off if / when the pump flow stops). Need to up that thermostat up to about 120-150 F and I think the tanks will stay at the desired 70 F lower limit.
     
  3. Murray

    Murray Site Admin Staff Member

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    Country:
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    I just cannot imagine how cold that must be. Incredible.
     

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