I'm trying to control the temperature of an element in a fan heater. I can find a ready made thyristor module with an adjustment potentiometer on ebay or Amazon which would work with no problems. I would like to replace the manual potentiometer with something that can wirelessly adjust the voltage to the thyristor module. I already have a wireless light dimming unit and was wondering if I could combine this with the thyristor module to control it. Obviously I can't do this directly because the dimming unit is designed for small loads with low currents but the heating element is a high load device which will draw considerably more current than the dimming module can handle.
Has anyone else here tried to do something like this before?
Once I have achieved this it should be relatively simple to control the temperature in a closed loop system in Node Red by using a Sonoff device to monitor the temperature and set high and low limits.