[RidingRoadsAndTrails]

Super freaking cool!!!

For the Espar side, Mike had mentioned folks looking to have remote switches & sensors for the heater have accomplished it using the analog bus.

Just curious, what is your endgame with this?

 

[RidingRoadsAndTrails]

Could you elaborate on this? What "analog bus" are you referring to?

I don't have enough info to be actionable, but here is what little I think I know.

The bottom coil of the harness in this picture is the analog bus that can be used with the earlier generation controllers. In the current generation heaters, that branch is unused, just protect the ends from shorting and tuck it away.

In the diagram below, c2 is the analog bus pictured above. Mike mentioned that the red & yellow wires on the analog bus is what folks were using to accomplish the remote control of the heater.

My caveat is that tons of info was going back & forth during the multi-hour troubleshooting session with lots of off-topic tangents like this one. Please don't take this as gospel.