4-wire thermostat but only 2 wires
All HD had for a 240 V thermostat was a 4-wire Honeywell CT410B. My baseboard heater is apparently wired with power to the heater and a switching wire to the thermostat. I hooked up black to L1 on the tstat and the white to T1. Now the heater is on all the time. What SHOULD I have done. For those of you with protective instincts, yes, I always turn off the breaker when working on wiring.