Wiring compatibility

[flyfisherbill]

 Will the standard Nest thermostat work with the addition of a C wire to the 2 wire system I have now. One of the 2 wires comes from a 24 VAC transformer and the other wire routes to the natural gas solenoid that turns the gas on.

[Ryan_G]

Hi flyfisherbill,

Thanks for reaching out here in the Google Nest Community.

The Google Nest Thermostat works with most 24V HVAC systems. You could share a photo of your current wiring configuration and use this online compatibility checker to help you further.

Let us know how it goes by replying to this thread.

Best regards,

Ryan

[flyfisherbill]

Thanks Ryan. I will try the Compatibility Checker. 

[Ryan_G]

Hi flyfisherbill,

Thanks for the reply.

I'd like to check if you've tried the online compatibility checker. 

We'll be glad to further assist you.

Regards,

Ryan

[flyfisherbill]

Yes I have. Both Nest and Amazon Smart. Both said not compatible. Nest listed the 2 more expensive models as acceptable Amazon just said not compatible. Neither mentioned anything about adding a C wire to make the Standard Nest or Amazon Smart compatible. 

[flyfisherbill]

 

[flyfisherbill]

The photo is my current thermostat wiring. Only controls heater on and off 

[Ryan_G]

Hi flyfisherbill,

Thanks for the reply and for including the photo.

It seems that your system is compatible with the Nest Thermostat as it is a 2 wire heating system. You may need to install a C wire to get constant power from the HVAC unit. If you don't have a C wire available, you could check out this Nest Power Connector.

Let me know how it goes by replying to this thread.

Regards,

Ryan

[Ryan_G]

Hey folks,

I just wanted to follow up and see if you're still in need of help. Please let us know as we would be happy to answer any questions you may have. 

Best regards,

Ryan

[Ryan_G · Accepted solution]

Hey there,

Thanks for being here in the Google Nest Community. 

I'd like to bump in here and 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 thread in 24 hours.

Have a great day.

Best regards,

Ryan

[flyfisherbill]

Thanks Ryan. I got the information I needed. Thanks for your help. 

[Ryan_G]

Hi flyfisherbill,

Thanks for the reply.

We're glad to hear that we were able to help. If there's any other question, let us know by replying to this thread.

Regards,

Ryan

[Ryan_G]

Hey there,

Thanks for being here in the Google Nest Community. 

I'd like to bump in here and 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 thread in 24 hours.

Have a great day.

Best regards,

Ryan