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Internet #306577300

Model #T3018US

Store SKU #1003599694

Nest Learning Thermostat - Smart Wi-Fi Thermostat - Mirror Black

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  • Learns your favorite temperature settings and adjusts
  • Saves on energy bills: up to 12% on heating and 15% on cooling
  • Control remotely through smart device and set up alerts
  • View More Details
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Product Overview

This Nest Learning Thermostat memorizes your favorite temperature settings and adjusts throughout the day. You can also control this Wi-Fi thermostat from your smart phone or other remote devices while you're away. Redesigned with a sleek mirror black finish and thinner look for a larger, sharper display, the Nest thermostat lights and easily displays the temperature when you enter a room. This ENERGY STAR-rated thermostat saves you on your energy bills: up to 12 percent on heating bills and 15 on cooling, paying for itself in fewer than two years.
  • ENERGY STAR: the Nest learning thermostat is the first thermostat to get ENERGY STAR certified
  • Learns the temperatures you like for different times/days and programs itself
  • Automatically turns itself down when you're away to avoid heating or cooling an empty home
  • Remote control: connect it to Wi-Fi to change the temperature from your phone, tablet or laptop
  • See when heating and cooling were on and what affected your energy use
  • Energy history; check your phone to see how much energy you used and why
  • Receive an alert on your phone or tablet if your home gets dangerously hot or cold
  • Learns how your home warms up and keeps an eye on the weather to get you the temperature you want when you want it
  • When Nest spots you across the room, it lights up beautifully to show you the temperature you've set or the time
  • Works with 95% of 24-Volt heating and cooling systems, including gas, electric, forced air, heat pump, radiant, oil, hot water, solar and geothermal
  • Better together; the Nest thermostat works with Nest protect, if Nest protect detects dangerous carbon monoxide gas, it can tell the Nest thermostat to turn off the furnace a common source of carbon monoxide leaks
  • Heating and cooling system care: HVAC monitoring looks out for your heating and cooling system to make sure everything's running smoothly. Alerts can notify you of a potential issue with an eligible HVAC system. They're meant to provide helpful information, not an endorsement, representation, or warranty of any kind about the health of your HVAC system. Alerts aren't intended to replace a diagnosis by a qualified HCAV professional.
  • How to install and replace your thermostat

  • Click here to learn more about Eco Options and Energy Efficiency
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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NameNest Thermostat - Smart Programmable Wi-Fi Thermostat - FogNest Learning Thermostat - Smart Wi-Fi Thermostat - Mirror BlackSmartThermostat with Voice ControlNest Learning Thermostat - Smart Wi-Fi Thermostat - 2 Pack - Mirror Black
FeaturesBacklit Display,Battery Back-Up,Filter IndicatorRemovable InterfaceAuto Changeover,Backlit Display,Battery Back-Up,Bluetooth,Daylight Savings Time Ready,Filter Indicator,Lockable,Low Temperature,Outdoor Temperature Display,Removable Interface,Touch Screen,Vacation ModeRemovable Interface
Wire Configuration3-WireC-WireC-WireC-Wire
Thermostat CompatibilityUniversalUniversalUniversalUniversal
Control TypeDial,Phone ControlledDial,Manual,Phone ControlledPhone Controlled,Pre-set,Touchscreen,Voice ControlledDial,Phone Controlled
Power OptionsHardwiredPlug-inC-wire,HardwiredHardwired
Heating & Cooling System Type2 Stage2 Stage2 Stage2 Stage
Voltage TypeLine VoltageLine VoltageLine VoltageLine Voltage
Thermostat ShapeRoundRoundCurvedRound
IncludedBatteries,Display Base,Mounting HardwareMounting Hardware,Trim PlateBatteries,Display Base,Dry Wall Plugs,Mounting Hardware,Power Extender Kit,Remote Sensor,Trim PlateMounting Hardware,Trim Plate
View ProductView ProductView ProductView Product



Display height (in.)
2.08 in
Display width (in.)
Product Depth (in.)
1.1 in
Product Height (in.)
3.3 in


Battery Power Type
Lithium Ion
Battery Size
Color Family
Mirror Black
Control Type
Dial,Manual,Phone Controlled
Removable Interface
Heating & Cooling System Type
2 Stage
Mounting Hardware,Trim Plate
Pack Size
Periods per Programmable Day
Power Options
Power Options
Remote Access
Remote Access
Requires Hub?
No Hub Required
Smart Home
Smart Home Enabled
Smart Home Protocol
Smart Technology
Energy History Tracking,Intuitive Scheduling,Smart Home Hub Compatible,Smart Phone/Android App Compatible
Thermostat Compatibility
Thermostat Product Type
Thermostat Shape
Thermostat Type
Heating and Cooling
Voice Control Hub Required
No Hub Required for Voice Control
Voltage (v)
Voltage (volts)
Voltage Type
Line Voltage
Wire Configuration
Works With
ADT Pulse, Alexa, Control4, Google, Google Assistant, INSTEON, Logitech Harmony, Lutron, Nexia, WeMo

Warranty / Certifications

Certifications and Listings
UL Listed
Manufacturer Warranty
2 year limited manufacturer's warranty, parts only, no labor

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.8
    out of 13,277 reviews
  • 95%recommend this product
Filter by:
Showing 1-10 of 13,277 reviews
Good one
I brought this a week ago and so far it work great. Funny thing - it sometimes show -0 °C as temperature!! Not sure what does that mean! Lol
    • Recommended
    Nest with heat pump system
    After several HVAC techs told my air handler was not compatible with a little research i was able to get mine nest thermostat to work.
      Technology better than ever! OMG
      Looks Great! You have to adjust the control everyday for the first week so it could learn your home automatically
      • Verified Purchase
      • Recommended
      1 person found this helpful
      Poor Return on Investment
      I bought 3 learnable Nests and one non-learnable. Two of the learnable have already failed. I received a no power message with the first Nest failure. The electrician checked my system and dicivered that the Nest back plate was no longer conducting electricity. I bought a new plate om-line at the Google store. Unfortunately i bought the second generation of the Nest plate. I tried to return it and soent over an hour with Goohle customer service via chat. They couldn’t find my order seoute me sending them my confirmation email. As it was winter I bought a whole new nest from the Home Delot. Again it came with the generation 1 plate . It worked. This week my upsatirs Nest has stopped wirking with the same error message. Perhaps this is why Google developed a second generation plate? Anyhow i never received my $100 refund from Google for the plate. Poor reluability and poor customer service from Google leads my to my opinionion to never buy a Nest product again.
      Response from Nest SupportAug 10, 2021
      Hi sweating, thanks for posting a review. We are sorry to hear that you are experiencing power errors on your Nest Learning Thermostat.

      Power errors usually occur if the HVAC system is not delivering enough power to the thermostat. Others could possibly be a wiring issue or a thermostat base issue. You can do the following to inspect your thermostat wires:
      - Make sure to turn the powers off.
      - Remove the C wire (if have) and inspect if the exposed part of the wire is ⅓ to ½ inch long, clean and straight.
      - Cut and re-strip any crooked or corroded wire ends.
      - Re-insert the wire. Make sure that the wire connector’s button stays down. If not, the wire isn’t fully inserted, and the thermostat won’t detect it.

      We’d like to help you the best way possible, if we could learn more about what happened. Please reach out to our support team so we can work with you and isolate the recurring issue. You can reach out to our support team and improve your experience here: https://support.google.com/googlenest/gethelp Nest
        • Recommended
        2 people found this helpful
        Have other nest thermostats already, but this one was in...
        Have other nest thermostats already, but this one was in the bronze / gold color to match the lighting fixtures and handles of the room. Nest is a great thermostat, easy to access and use, we have another screen based thermostat which isn’t as user friendly and costs about triple. We appreciate the remote access, ability to manage multiple nest products in one app, and of course the tech built in. I have noticed the learning feature sometimes over learns or doesn’t readjust based on seasonal changes so I have found it better to turn off the learning feature and just set a steady temp with eco mode / away mode available for when we are away. Would recommend to anyone, they fit in any space in both function and appearance, and shipping through Home Depot was fast.
        • Verified Purchase
        Easy to install works phenomenal...
        Easy to install works phenomenal
        • Verified Purchase
        This thermostat was an easy install it sync with our security system and our smart devices. I LOV...
        This thermostat was an easy install it sync with our security system and our smart devices. I LOVE the fact I can regulate my thermostat from anywhere in the house. I also, appreciate the fact that it knows when we are away from home. I haven't been able to determine the savings on our electric bill as of yet, but I'm looking forward to that. Also, grateful for the rebate savings that BGE offered on this thermostat. Overall very pleased!
        • Verified Purchase
        • Recommended
        1 person found this helpful
        Tons of issues
        Physical installation was a breeze. However these do not do what they are supposed to do. We have two units and they will not connect to one another. We spoke to tech support for hours and there was no good solution. Their bottom line was to create two “homes” and switch between them to control each thermostat. This was an unacceptable option as we also purchased nest compatible accessories and sensors that would not work properly with a divided account. THEN when we connected the sensors, they will not stay connected. We are technologically saavy and have wifi cameras, alarm systems, etc. This is a terrible product
        Response from Nest SupportJun 14, 2021
        Hi LBJ859, thanks for reaching out. We are sorry to hear that you are experiencing some issues with your Nest Learning Thermostats.

        We value your feedback, and we’d like to help you the best way possible. Your Nest thermostats are trying to communicate with each other, and there’s something that must have been missed during the pairing. You can try this troubleshooting steps to fix the issue:

        - Remove the Nest Learning Thermostat from the home that you are not going to use. Go to Nest App>Tap the Nest Learning Thermostat icon>Settings>Remove (at the bottom).
        - On the thermostat itself, reset the WWN connection. Go to Settings>Reset WWN connection, and wait for the thermostat to reboot completely.
        - Connect your Nest Learning Thermostat to your Wi-Fi manually.
        - Add the Nest Learning Thermostat on your preferred structure.

        If the issue still persists, we suggest reaching out to our support team once again. You can contact us here: https://support.google.com/googlenest/gethelp Nest
          • Recommended
          9 people found this helpful
          I have been using this for a couple of months now. The installation was super simple. The wiring ...
          I have been using this for a couple of months now. The installation was super simple. The wiring diagram is easy to follow and the instructions are clear. The provided hardware makes installing it simple. The controls are easy to use and follow as well. I installed the app on my phone and I love being able to change the temperature from my phone. My wife and I both love the feature where we can set a schedule on the app and have it run automatically.
          • DIY
          • Recommended
          2 people found this helpful
          Sharp design ! Easy to use. I had a problem w the trim kit not fitting my device so I’ll be retur...
          Sharp design ! Easy to use. I had a problem w the trim kit not fitting my device so I’ll be returning it after my next one comes in . It actually was featured as going together so I trusted that . But oh well that’s life . I’ll be all set this week .
          • Verified Purchase
          • Recommended
          2 people found this helpful
          Showing 1-10 of 13,277 reviews