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Thread: 2-300watt heater

  1. #1
    Scotch57
    Join Date
    May 2016
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    Hobart,indiana
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    2-300watt heater

    Question have 2-300 watt heaters heater1 outlet5 heater2 outlet6 on 125 tank my program is
    heater 1 fallback off if temp<78.0 then on
    If temp>78.5 then off
    heater 2 fallback off if temp<77.8 then on
    If temp>78.3 then off
    heater 1 will be the only heater running heater 2 will never turn on only if heater1 stops working one 300 watt heater isn't big enough to heat the tank up how do I get both heaters to runat the same time

  2. #2
    Frequent Contributor zombie's Avatar
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    Dec 2013
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    Denver, CO
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    13,176
    Give them the same range to have them both run simultaneously. I also suggest you do this.

    1
    Fallback OFF
    If Temp < 78.0 Then ON
    If Temp > 78.5 Then OFF
    If Temp < 75 Then OFF

    2
    Fallback ON
    If Temp < 78.0 Then ON
    If Temp > 78.5 Then OFF


    Set both thermostats to 80 degrees. This way if fallback ever occurs or your probe falls out of the tank or gets disconnected one and only one heater will still operate based on the thermostat.

    You might be an engineer if...You have no life and can prove it mathematically.

  3. #3
    Scotch57
    Join Date
    May 2016
    Location
    Hobart,indiana
    Posts
    8
    Ok that works but they don't have thermostats have a ranco controller that has a double plug that Iam not using set the controller to 80 with this program and will the apex override the controller and shut the heaters off at their set point

  4. #4
    Frequent Contributor zombie's Avatar
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    13,176
    Yes. I would just use the ranco on the one with fallback ON a
    Though.

    You might be an engineer if...You have no life and can prove it mathematically.

  5. #5
    Scotch57
    Join Date
    May 2016
    Location
    Hobart,indiana
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    Thanks

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