Google Nest Learning Thermostat -- furnace clicks when not heating

[Scobrooks]

I just installed a Nest Learning Thermostat (the one with the blue level). 
Issue: When not heating, the furnace keeps clicking.

Background: 
1. My system passed the compatibility test.
2. I have no C wire, just R and W.
3. I have radient baseboard heaters, no A/C. No multiple zones.
4. I got no error messages during the install -- the software thinks things are fine.
How can I fix the clicking? Thanks! 

[jeffrb]

Baseboard heaters are, for the most part, not considered compatible with a nest system, as they require line level voltage, and nest is made for low voltage control systems. The lack of a c wire tells me that your system is not technically compatible.

[Scobrooks]

Thanks! In my case they aren’t electric baseboard heaters—the HVAC is a boiler. Does that matter?

[Jenelyn_O]

Hi there,

Thanks for reaching out. I'm sorry for the delay. To confirm, in what country are you located? Please provide the make and model of your heating system. 

I appreciate your input, @jeffrb.

Best,

Jenelyn