In my experience the learning thermostat will not work. It may work but
you will have intermittent issues with it connecting and sending the
signals. I would personally go with the nest E thermostat but try a
learning stat if you want? I would do one...
HVAC technician here... You can use the Nest E thermostat for each zone
as it doesnt require a C terminal. Although it's a huge expense for a
simple on/off radiant heat only system. You may go through batteries
like crazy though without both a R and ...
