Cadco CSR-3T hotplate modification

[still_stirrin]

A few times I've been asked about my Cadco hotplate modifications to control heat input instead of temperature with the thermostatic control. So, I think I'll add a build thread with my hotplate mods.

Note, the hotplate is already built, so I'm showing what it looks like now assembled and functional. I'll also include the bill of materials for the modifications as well. This should give you innovative members a place to start.

hotplate slide 1.jpg

Here's a close up view of the controls. Notice, I reused the power switch that came on the Cadco 3T. But I did remove the thermostat control (look for it in a later photo).

hotplate slide 2.jpg

Next, turning the hotplate over, you'll see how to remove the bottom panel and expose the "goodies".

hotplate slide 3.jpg

So, with the bottom removed, this is what it looks like inside. Please note that this is after the modifications are done. You'll note the insulations that I put on the steel air channel that draws air from below the hotplate up through the element. I put the fiberglass insulation there to keep the heat from the element focused on the stock pot boiler and isolated from the circuitry I added inside the case.

hotplate slide 4.jpg

Look it over...it looks complex, but is really quite simple. When you see the schematic, you'll understand better what the components are. This is the "high level view". More to come...
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