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Nest Learning Thermostat (T200477)

  • Model #: T200477
  • Web Code: 10254137
  • Release Date: 04/07/2013
(27 ratings)


Increase your comfort and decrease your energy bill with the help of the Nest Learning Thermostat. This smart device learns how you like to heat your home, then intelligently figures out the most energy-efficient way to keep you comfy. Since it's WiFi-connected you can even change the thermostat over the internet from anywhere in the world.

More Information

Reduce your energy bill.

Did you know that your thermostat controls about half of your home's energy usage? That's right, the cost of heating or cooling your home is about as high as the energy costs of your computers, TVs, appliances, and lighting combined. Nest uses smart learning technology to save energy automatically, which reduces your utility bill. Your wallet will thank you.

Smart savings.

Nest learns your schedule and heating/cooling preferences over time. It then takes this data and programs itself in a way that reduces overall energy usage up to 20%. Nest is smart enough to reduce the thermostat when you're away at work, and it displays the Leaf icon to show you when it's at a temperature that's saving you money.

Easy installation.

Have you ever installed a lighting fixture on your own? Then you'll find it simple to install Nest, and probably in less than 30 minutes. If you'd rather let a professional handle it, you can contact a Nest Pro to install Nest, remove and recycle your old thermostat, and connect Nest to your WiFi network. Nest is designed to work with 95% of homes with low voltage systems so odds are that it'll fit nicely in your home.

Works with Nest.

Since Nest is smart and WiFi-connected, it's able to work with a variety of other smart devices to provide additional convenience and functionality, and the list of compatible devices is growing all the time. A smart garage door can tell Nest when you've left the house, a smart door lock can notify Nest about who's arrived home and what temperature they prefer, and smart appliances can go into energy saving mode when Nest tells them that you're away.

Other Features:

  • Auto-schedule feature learns from your temperature preferences and programs itself in about a week
  • Sets itself at a temperature that feels comfortable while saving energy so you can enjoy reduced energy bills (up to 20%)
  • Figures out when you're away at work and reduces the thermostat accordingly to save energy
  • Connects with your home's WiFi network so you can control it from your smartphone, tablet, or laptop from anywhere in the world
  • WiFi connectivity allows Nest to link up with other smart devices and work together to create additional smart home convenience
  • Airwave automatically reduces air conditioning usage when indoors humidity isn't too high, so you'll get reduced energy bills while keeping the house cool
  • View Energy History on the Nest Mobile or Web apps so you can get detailed information about your energy usage and figure out how best to save
  • Nest works with over 95% of 24V heating and cooling systems, including gas, electric, oil, solar, hot water, geothermal, forced air, heat pump and radiant.
  • Heating: one, two, and three stages (W1, W2, W3)
  • Cooling: 1 and 2 Stages (Y1, Y2)
  • Heat Pump: with auxiliary and emergency heat (O/B, AUX, E)
  • Fan (G)
  • Power (C, Rh, Rc)
  • Whole home humidifier or dehumidifier (HUM, DEHUM)* - professional installation recommended
  • Dual fuel systems (heat pump with furnace)* - professional installation recommended
  • Common wire not required in 99% of installations


The Nest Learning Thermostat is not compatible with line voltage, millivolt systems or low voltage systems with incompatible wires. The Nest Thermostat is not compatible with some systems without a common wire installed. The Nest Learning Thermostat is only compatible with low voltage 24 volt systems, not line voltage or millivolt systems. While most low voltage systems are compatible with the Nest Thermostat, here are some exceptions:

Incompatible systems:

  • Remote sensors. While the Nest Thermostat may be compatible with this system, it won’t be able to gather data from existing remote sensors.
  • Proprietary systems. Proprietary systems use a serial communications protocol to communicate between the system and the thermostat. The Nest Thermostat can’t communicate with serial protocols, though some proprietary systems can be wired with standard HVAC wires.
  • Some micro-controller based systems. Systems that use micro-controllers instead of relays are sometimes more sensitive to power sharing. If so, the Nest Thermostat may need a common wire to be compatible with these systems.
  • High impedance systems. Some systems with particularly high impedance can’t deliver enough power to the Nest Thermostat over the HVAC wires. If so, the Nest Thermostat will need a common wire to be compatible with these systems.
Incompatible wiring:
  • Three stage cooling. The 2nd generation Nest Learning Thermostat is only compatible with systems that have one and two stage cooling.
  • International systems. Some international systems, such as Buderus boilers, have dry contacts or other incompatible wiring. These systems may require relay panels in order to be installed with standard American thermostat wiring.
  • Heat pumps with L wires. The Nest Thermostat doesn't support Service Indicator (L) wires.
Incompatible hardware:

Zone relay panels or control panels. Some systems have control panels or equipment interface modules that require a common wire to be compatible with the Nest Thermostat. Here's a list of known panels that require a common wire:

  • Honeywell AQ25110B
  • Honeywell EMM-3
  • Honeywell TZ-4
  • Honeywell HZ311
  • Bryant 548F036
  • White-Rogers 36C03-300
  • Carrier HK42FZ011
  • Nordyne 624631-A
  • Nordyne 903915A
  • Waterfurnace ATV045A 110CIT
Some gas valves on systems vibrate or buzz when the Nest Thermostat is installed. This can usually be fixed by connecting a common wire.

What's in the Box?

  • Install Guide
  • Welcome Guide
  • Screwdriver
  • Wall Screws
  • Trim Kit
  • Install Guide
  • Welcome Guide
  • Screwdriver
  • Wall Screws
  • Trim Kit

Manufacturer's Warranty:

  • Parts - 30 Day(s)

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  • Warranty Parts
    30 Day(s)



Customer Reviews

3.2 / 5
Based on 27 ratings,4 Reviews
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3 Reviews

Critical 44%

1 Reviews

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  • from Terrebonne, QC
  • Dec 21, 2014

Surévalué, mauvaise qualité

Contre: - pour être "vert" et donc éviter de démarrer votre chauffage ou climatisation, ce thermostat est tres imprécis (+/- 3 degrés!), ce qui veut dire que si vous le placez a 22c, il se peut que vous arriviez a la maison et qu'il fait entre 19 et 25 degrés celcius! - énormément de bris! En lisant les commentaires des acheteurs, on se rend compte que bcp doivent retourner ce thermostat dans la premiere année d'utilisation! Innacceptable dans notre climat où il peut faire -20c! Par conséquent, plusieurs contracteurs/installateurs ne veulent plus installer ce produit. - Même si dans certains cas cela fonctionne sans, il requiert une connection avec un fil "c" pour l'alimenter en électricité continue, dans le cas contraire il se décharge (vous perdez donc votre thermostat!!) et doit etre constamment retiré du mur et rechargé a l'aide d'un port usb. Dans certains cas, la méthode sans fil "C" du "power stealing" peut endommager votre systeme de chauffage!! Pour beaucoup de gens, il est arrivé que le thermostat démarre le chauffage et la climatisation en même temps, endommageant le systeme $$$$$$. Pour: - Il est bien beau comme un iPhone - Il vous encourage a économiser - Il est de construction solide a l'extérieur, roulette en acier inoxidable

  • from Gatineau
  • Mar 21, 2014

Bravo Nest !!!

Excellent thermostat. Facile a installer et a mettre en fonction. Plusieurs dollars economises grace au systeme de gestion intelligent. Controle possible de l'appareil via iPhone et iPad.

  • from Beloeil, QC
  • Dec 31, 2013


super produit, facile installation,

  • from Montréal, QC
  • Dec 05, 2013


Très bon produit