The 3rd genNest Learning Thermostat’s stainless steel ring can also be in different colors. If you have a thermostat ring that looks likeone of these, you have a 3rd gen Nest LearningThermostat. Both thermostats are the same size, with a 3.3-inch diameter, but they look quite different. The Learning Thermostat has a high-resolution digital display for showing the temperature, status of your heating, and the menu system, which is navigated by rotating and pressing a metal ring that runs around the entire circumference. Meanwhile, the cheaper Nest Thermostat is made from plastic and has what Nest calls a mirror display, which is reflective when off and white when on.

Heating and cooling:1 stage of heating (W1) and cooling (Y1) and a second stage of either heating (W2) or cooling (Y2). If you have a dual fuel system it is strongly recommended that you chooseprofessional installation. To get a custom wiring diagram for installation, simply follow Nest app’s thermostat installation instructions. Note:Only one of the wires that go into theconnector (HUM,DEHUM,E,W 3,G 3) can be connected to the Nest thermostat. The 3rd-genNest Learning Thermostat supports systems with either multiple fan speeds (G 2/G 3) or with multiple stages of heating (AUX/W 2/W 3) and cooling (Y 2). Note:Only one of the wires that go into theconnector (HUM,DEHUM,E,W 3) can be connected to the Nest Learning Thermostat.WARNING:Attempting to connect parts from different Nest thermostat models may damage your thermostat as well as your system. But there are two major differences. The first is in the name of the Nest Learning Thermostat – it learns your temperature preferences, then starts to make small changes automatically in a bid to keep you comfortable, but while using less energy. This could mean lowering the heating by a degree, or running the air conditioning slightly less often; both of these could go unnoticed, but will consume less energy and lower your bills. The Nest Learning Thermostat is designed to work even if your home doesn't have a commonCwire, but installing a newCwire may be required in rare cases.

The Nest Thermostat can be in different colors. If you have a thermostat that looks like one of these, you have a Nest Thermostat. The displays and bases of various thermostat models are not interchangeable, even though they may look similar. WARNING: If you attempt to connect parts from different thermostat models, it may damage your thermostat as well as your system.As long as the thermostat base is from the same model, generation, and country/region as the thermostat display, you can swap bases and displays. TheNest Thermostat E works with 85% of 24 V heating and cooling systems, including gas, electric, forced air, heat pump, radiant, oil, hot water, solar and geothermal.

The Nest Learning Thermostat works with 95% of 24 V heating and cooling systems, including gas, electric, forced air, heat pump, radiant, oil, hot water, solar and geothermal. This is based on data gathered through Nest’s online compatibility tool.Both models of smart thermostat automatically turn down when you leave home, based on the location of your smartphone, and they can be controlled from anywhere via the Google Home app. Your home is your space. It’s also a place where you can express your style with color and personal touches. And we want our products to reflect your aesthetic while giving you the help you need. So we recently introduced three new colors to the Nest Learning Thermostat lineup (bringing the total to seven) to give you more options to fit your style. The display connector on the thermostat base is different for all 3 generations of the Nest Learning Thermostat. In addition, the connectors for the system wires are different between thermostat models. Heating and Cooling: one stage of heating (W1) and cooling (Y1) and a second stage of either heating (W2)or cooling (Y2). The Learning Thermostat comes with a trim plate included in the box. This is often needed if the Nest is smaller than the thermostat it is replacing and is used to hide the hole left by the old device. Nest’s marketing images usually show the thermostat neatly mounted directly to the wall, but in most cases, you’ll have to use the trim kit to hide the mess created by the removal of the old thermostat.

If you have a dual fuel system, a whole-home humidifier/dehumidifier or a multi-speed fan, it is strongly recommended that you choose professional installation. The Nest Learning Thermostat is designed to work even if your home doesn't have a commonCwire, but installing a newCwire or the Nest Power Connectormay be required in some cases. Some systems, including heating-only, cooling-only, zone-controlled, and heat pump systems, require a C wire or the Nest Power Connector. Go to g.co/nest/cwire for details. Some countries (such as the UK, France, and The Netherlands) use high voltage wiring for thermostats while others (such as the US and Canada) use low voltage wiring. High voltage and low voltage thermostat parts are not compatible with each other, and should not be used together. Brass is warm and subtle - it can act as a pop of color for your home or blend in with other metal accents you may have.You might not instantly see an equivalent saving in your heating and cooling bills to offset the extra expense of the Learning Thermostat and sensors, but its additional features – especially its intelligent temperature adjustments – can make a difference to your bills over time. Using less energy can also make a difference to the environmental impact of your home, depending on the energy source used. In most homes, installing a Google Nest thermostat is an easy DIY project that takes about 20-30 min. The Nest app’s step-by-step instructions make it easy to install and wire your thermostat, so use it as your main guide. Refer to this article if you need extra help.