Now that I’ve had my IoTaWatt coming up on two years (can’t say enough positive things about it!), my initial guesses as to the “most useful” circuits to monitor has been off: my “everything else” IoTaWatt output (two mains added, minus the 11 circuits with CTs) is hiding some bigger than expected loads. So, I’ll be changing some CTs around. No problem there.
Then I starting thinking (always a dangerous thing)… I have a 100 A CT for the clothes dryer, and the washer is in that “everything else” calculated output. Can I wire up both the dryer and washer with the same 100 A CT and just call it “laundry”?
Problem is the dryer is 240 V and the washer 120 V. So, what if I looped one leg of the dryer through the CT twice (right now the CT contains one leg and the IoTaWatt doubles it) and one leg of the washer (paying attention to which phase the washer is on and which leg from the dryer I use)? Would that work?
Might I be missing something else that would make this a Bad Idea?