Nest learning install

[Siclone]

I am installing my nest learning thermostat.  My old thermostat had a red wire to socket R. The nest has an Rc and Rh. Any idea which I should use?

[johnCNA]

The Nest can use either Rh or Rc .

[MelbaDT]

Hey folks, 

Thanks again for answering, johnCNA. 

@Siclone, I'm dropping by to ensure you've got the answer to your question. Let me know if you need anything else. 

Best, 

Melba