I made a PID controlled electric kiln for my knifemaking so I can do heat treat in house. Pretty much all of the parts outside of the heating element are the same for making a homemade temp controller. Only difference is having a fan hooked up instead of a heating element.
After doing the research and you know what parts you need and what they do it is MEGA easy to make a temp controller with fan. Granted you still need something like a Mav 732 if you want to sit in the house and be able to monitor temps.
Hey Righteousdog where do you have your SSR for the fan speed control? I can't see it in any of the pictures.
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