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Thread: Electric Furnace Controller

  1. #1
    Supporting Member rgsparber's Avatar
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    rgsparber's Tools

    Electric Furnace Controller

    My electric furnace runs on 220VAC at up to 15 amps. The controller presented here precisely sets the average power by turning a knob. I designed and built this controller back in 2007 before I was comfortable with using Arduinos. I now know that it would not take much to modify the design to both have input from a temperature probe and be under software control. These upgrades would be particularly useful during the long power-up phase.

    If you are interested, please see

    https://rick.sparber.org/electric%20...controller.pdf


    Your comments are welcome. All of us are smarter than any one of us.


    Thanks,

    Rick
    Rick

  2. The Following 4 Users Say Thank You to rgsparber For This Useful Post:

    Jon (07-16-2020), Sleykin (07-14-2020), Tonyg (07-16-2020), Tule (07-16-2020)

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    Supporting Member Sleykin's Avatar
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    Sleykin's Tools
    I lucked out and found an old used kiln at a yard sale for $25. I added a PID controller and a solid state relay. So many options it makes you dizzy reading them. Works wonderfully and I can ramp up over a set time or I can ramp to temp and hold and then ramp more and hold then ramp down. It seems to hold temp to about +_ 5F*.
    So far I have only used it to melt aluminum, but I think it will also be a great heat treat oven.

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    Thanks rgsparber! We've added your Electric Furnace Controller to our Electronics category,
    as well as to your builder page: rgsparber's Homemade Tools. Your receipt:





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