Q: What are the differences between this new model and the Thermostat e?

A: The Nest Thermostat (2020) comes with a 6 cm color LCD with 240x320 resolution, and mirrored glass finish. It provides more wiring terminals (10) that work with most 24V heating and cooling systems, including furnaces, air conditioners, boilers, and heat pumps with either forced air or radiant delivery. On the other hand, the Nest Thermostat E comes with polycarbonate, ceramic-feel finished ring with a frosted display that works with fewer (86%) 24V heating and cooling systems. While both Nest thermostat models work with most two-stage heating and two-stage cooling systems, we recommend checking the Compatibility Checker on our Google Nest support site to verify if your system is compatible. You can also take a look at the following support article for the complete technical specifications of the Nest thermostats: https://support.google.com/googlenest/answer/9230098

Q: The description says that the front is a mirrored finish but the pictures of the Snow and Sand show a white or corel cast to the glass respectively. Does the front actually look like a pure mirror or is it tinted to match the side color?

A: It is a mirror finish. The photos don't do the product justice.

Q: Does this work without wifi if I decide not to have wifi?

A: You need to connect to wifi to set up the thermostat. As soon as you power on the thermostat, the screen displays a message to set up on the Google Home app. There’s no workaround for this. Wifi is needed.

Q: does this nest work on a two zone system with natural gas heat and elec a/c system?

A: The Nest Thermostat is designed to work with most 24V systems, even older systems. Nest thermostats are usually compatible with zoned systems that use multiple thermostats, including zoned systems with dampers. However, we recommend using the Compatibility Checker tool on our Google Nest Help page to verify if your system is compatible with Nest Thermostat here: https://store.google.com/us/widget/compatibility/thermostat

Q: Does this work with Nest app. On iPhone. I have two older thermostats that use Nest app. And would want to add any newer ones.

A: No. You can only use the Google Home app for the new Nest Thermostat (2020). It's the first thermostat setup that is completed entirely on the Google Home app. Here's some helpful links you might want to check out: - Nest thermostat technical specifications: https://support.google.com/googlenest/answer/9230098 - Control your devices using Google Home App: https://support.google.com/googlenest/answer/9249866

Q: My current wiring does not have a common wire available. Can I connect this thermostat with out It? In the compatibility test it states this unit is, however, when I go through the set up process a call out warning to connect the common wire comes up.

A: Nest thermostats are designed to be able to work efficiently without the need of a power wire when the heating and cooling wires of your system can deliver enough power to keep the thermostat's battery charged up. But some heating/cooling wires unfortunately can't deliver adequate power to Nest thermostats. In such cases, Nest thermostats need a common (C) wire that goes into the C terminal of the thermostat. Since you´ve already checked with our Compatibility Checker tool, the next best step would be to contact a Nest Pro technician to check your system and install a common (C) wire if needed Our support teams are always here to assist you if you have any further questions.You can contact us via the Google Nest support page here: https://support.google.com/googlenest/contactflow

Q: Can this thermostat be locked?

A: Nest Thermostat does not have the PIN lock/unlock feature unfortunately.

Q: Can you basically just hook it up to 2 wire Williams wall heater ? Or would you still need a c wire ?

A: Nest Thermostat works with most 2-wire, 24V heating and cooling systems, including furnaces, air conditioners, boilers, and heat pumps with either forced air or radiant delivery. We suggest using our online compatibility checker first to ensure that your system is compatible with Nest Thermostat. Here’s the link: https://store.google.com/us/widget/compatibility/thermostat Typically, smart thermostats don’t require a common (C) wire, but every system is different. Without a common wire, your Nest thermostat will charge itself through power sharing using your existing heating and cooling wires. However, when your heating and cooling wires are not able to deliver the needed power for your Nest thermostat, you may need to connect a common or C wire since it helps deliver enough consistent power to your thermostat. When there’s a C wire, it becomes the thermostat’s go-to for power backup when power sharing doesn’t work. This can also conserve battery life since the batteries will likely only be in use when there’s a power loss to the thermostat. Also, Nest Thermostat (2020) has a backup battery. For systems that are not using a C wire, the average battery life is three to six months. However, depending on the Wi-Fi activity on the thermostat, it may be possible to extend or reduce the battery life. For further assistance, you can contact our support team here anytime: https://support.google.com/googlenest/gethelp