Hello everyone - Can anyone explain why my new Nest Thermostat requires
a 'C' Wire, but the older Nest Learning Thermostat does not require
this? They are both connected to the same heating system for radiant
floor heating ONLY.Thank you,
Hi Edward - Thank you, the link was helpful and I have now purchased and
installed and external adaptor in addition to the Nest Power
Connector.However, it didn't really explain the differences between the
Nest Learning Thermostat and the Nest Thermo...