Recent content by chialex

I would like to thank everyone for your suggestions. I haven't decided what to do yet, but this discussion helped me to understand my options. Both, the thermostat manufacturer and the heater manufacturer suggested using third-party 24VAC conversion kits like Venstar or Lock State. I think both...

Hello experts, I have a new Navien NCB-240 water heater and I want to install a new Sensi wifi thermostat. That thermostat requires a common wire that would supply 24VAC. On the Navien I found a terminal marked CN25, it has three connectors and in the wiring diagram this terminal is marked as...