How many thermostats to buy?

[torijensen]

I want to buy this thermostat for my home.  I currently have two very very old thermostats.  Do I need two Nest thermostats or just one?  I am confused because of the room sensor that you can put in other rooms.

Thanks,

Tori Jensen

[CoolingWizard · Accepted solution]

torijensen,

If the two thermostats are located in different areas in your home, you likely have two separate HVAC systems.  Depending on where you live, some homes start with heating systems and later add a Air Conditioning system.  This is one situation that would explain a separate heating system form the AC system. This would require two separate Nest Learning Thermostats. One be for the heating system and the other for the AC cooling system. 

Some newer homes have two separate Heat Pump split systems and is usually seen in multilevel homes of two living floors and a basement.  This situation would need two separate Nest Learning Thermostats.

Perhaps you can provide more information about your homes heating and cooling system.

Ken, The AC Cooling Wizard 

[torijensen]

can you tell me how to send you the photos?  

[torijensen]

We have two air conditioners and two furnaces.  I figure we need two Nest Thermostats.  Thanks.

[CoolingWizard]

Torijensen, yes indeed you will require two Nest Learning Thermostats 3rd Generation.  In preparation for that purchase and installation, you might want to take a picture of your current thermostat and its backplate where the wires are connected.   In order to add a picture to a post in this community, you must upload the picture before you type the text response or you’ll get an error.

On another thought, if you get a Nest Pro to install the thermostats, you will add 3 years to standard 2 year warranty for a full 5 year warranty.

Ken, The AC Cooling Wizard

[torijensen]

Ok, we will try to figure out how to photograph the back plate and post the photos. How do we hire a Nest pro?

thank you

[torijensen]

I don’t know how to attach a photo here.  It looks like wires just go through a hole in the circuit board into the wall.  We couldn’t take it off the wall.  We could only take the cover off. We are not very handy.

[CoolingWizard]

When start a reply, tap the camera image just above your text. It will take you to your PHOTO library, select the photo, and click DONE. 

Ken, ThenAC Cooling Wizard 

[torijensen]

I am trying to attach a photo, but it keeps giving me an error message.

[CoolingWizard]

OK, congratulations you were able to upload a photo. Now your system has gas heat and it has a red wire going to the RH, a blue wire going to Y, A green wire going to G, and a white wire going to W.  It appears you do not have any available conductors for a COMMON wire.  When you buy your thermostat I would encourage you to buy a nest learning thermostat 3rd generation.

[torijensen]

How do I find the right person to install these thermostats?

[CoolingWizard]

You will have to search on the Internet for Google nest pro. There are HVAC companies in your area that are probably like me, nest pro certified, and then there are national companies that hire people in their general areas to do the same. Truth be told if you have a Phillips screwdriver, you could do this yourself.

[torijensen]

Thank you so very much!

[EdwardT]

Hi folks,

@CoolingWizard, thanks for the help!

@torijensen, how's it going with your Nest Thermostat? Still need our help!

Thanks,

Edward

[torijensen]

we have the thermostats now. They were delivered yesterday.  Not sure if we can put them in as we aren’t sure how to disconnect the old ones snd take them off the wall.  If we do put them in, is it easy to program them to Alexa and my iphone?  Thank you!

[EdwardT]

Hi torijensen,

Thanks for the response. You can click on this link for step by step instructions on how to setup your Nest Thermostat on the app. Also, here's an article on how to add your Nest Thermostat with Alexa.

Thanks,

Edward

[torijensen]

Thanks so very much!

[EdwardT]

Hi torijensen,

Let us know if you have other questions and we'd be glad to assist.

Thanks,

Edward

[EdwardT]

Hi torijensen,

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do. 

Thanks,

Edward

[EdwardT]

Hi torijensen,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.

Thanks,

Edward

[torijensen]

yes, I have seen your replies, thank you.  We are waiting for our electrician to install them.  We are just not very handy and worry about messing with electricity. 😁

[EdwardT]

Hi torijensen,

Thanks for the response. Let us know once you're Nest Thermostats are installed or if you have any questions. We're here to help.

Thanks,

Edward

[Jhonleanmel]

Hey folks, 

We appreciate your help here, @EdwardT.
@torijensen, I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any concerns or questions from here, as I would be happy to take a closer look and assist you further.

Thanks,
Mel

[Jhonleanmel]

Hi everyone,

Just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, I would be happy to keep it open. If there's more we can do, just let me know.

Thanks,
Mel

[torijensen]

We had the Thermostats installed today.  I can't get a code for the 2nd thermostat in order to get it attached to my phone.  how do I get that code when it didn't automatically show up when I Added a product?  Thanks

[Markjosephp]

Hi torijensen,

I'm sorry for the trouble this may have caused you when adding another Nest Thermostat to the Nest App. I'd love to help.

I did find a helpful article with troubleshooting steps on how to get the entry key during the set-up process, and please let us know if that helps.

Best regards,

Mark

[Markjosephp]

Hey there,

I wanted to see if you still needed help. Please let us know if you have any other questions or concerns.

Thanks,

Mark

[torijensen]

Hi,

No, we got them installed and it's going well, thanks. Great thermostats!

[Markjosephp]

Hi torijensen,

Sounds great! I'm glad you were able to add it successfully. So I'm going to lock this thread in 24 hours. If you have any other concerns or questions, please feel free to create a new post.

Thanks,

Mark