What is the best Z-Wave Thermostat?

Update November, 2017: New product reivews added, old product reviews updated, table and more information added. 

Title
Top Choice
GoControl Z-Wave Thermostat
Trane Z-Wave Thermostat
2gig CT100 Z-Wave Thermostat
Affordable Tip
Z-Wave Thermostat CT101 for IRIS
Preview
GoControl Thermostat, Z-Wave, Battery-Powered, Works with Amazon Alexa
TRANE Thermostat, Z-Wave, Works with Amazon Alexa
2gig CT100 Z-Wave Programmable Thermostat (White)
CT101 Z-wave Thermostat made for IRIS, works with Smartthings , Vera, ADT Pulse and more, improved CT100
Pros
  • Works with Amazon Alexa
  • Compatible with most Z-Wave hub systems
  • Great Support of H/C Systems
  • Amazon Alexa Integration
  • Extremely easy to Install
  • Supports most Z-Wave hubs
  • Compatible with most H/C Systems
  • Clean design
  • Nice display
  • Well established and renown manufacturer
  • Fully programmable
  • No need for a C-Wire (according to Honeywell)
  • Extremely Affordable Price Tag
  • Complete DIY Programming Customization
  • Works with Most Smart Home Hubs
  • Support for Z-Wave Products
  • Cons
  • Doesn't Support Z-Wave Plus
  • Extremely Limited Display
  • Doesn't Support Z-Wave Plus
  • High Price Tag
  • A bit more expensive but well worth it
  • Extremely Outdated Design
  • Build Feels Cheap
  • Display Shows Little to no Information
  • Touchscreen Display
    Sleek Design
    Z-Wave Plus Compatibility
    Affordable Price-Tag
    Top Choice
    Title
    GoControl Z-Wave Thermostat
    Preview
    GoControl Thermostat, Z-Wave, Battery-Powered, Works with Amazon Alexa
    Pros
  • Works with Amazon Alexa
  • Compatible with most Z-Wave hub systems
  • Great Support of H/C Systems
  • Cons
  • Doesn't Support Z-Wave Plus
  • Extremely Limited Display
  • Touchscreen Display
    Sleek Design
    Z-Wave Plus Compatibility
    Affordable Price-Tag
    More Information
    Title
    Trane Z-Wave Thermostat
    Preview
    TRANE Thermostat, Z-Wave, Works with Amazon Alexa
    Pros
  • Amazon Alexa Integration
  • Extremely easy to Install
  • Supports most Z-Wave hubs
  • Compatible with most H/C Systems
  • Cons
  • Doesn't Support Z-Wave Plus
  • High Price Tag
  • Touchscreen Display
    Sleek Design
    Z-Wave Plus Compatibility
    Affordable Price-Tag
    More Information
    Title
    2gig CT100 Z-Wave Thermostat
    Preview
    2gig CT100 Z-Wave Programmable Thermostat (White)
    Pros
  • Clean design
  • Nice display
  • Well established and renown manufacturer
  • Fully programmable
  • No need for a C-Wire (according to Honeywell)
  • Cons
  • A bit more expensive but well worth it
  • Extremely Outdated Design
  • Touchscreen Display
    Sleek Design
    Z-Wave Plus Compatibility
    Affordable Price-Tag
    More Information
    Affordable Tip
    Title
    Z-Wave Thermostat CT101 for IRIS
    Preview
    CT101 Z-wave Thermostat made for IRIS, works with Smartthings , Vera, ADT Pulse and more, improved CT100
    Pros
  • Extremely Affordable Price Tag
  • Complete DIY Programming Customization
  • Works with Most Smart Home Hubs
  • Support for Z-Wave Products
  • Cons
  • Build Feels Cheap
  • Display Shows Little to no Information
  • Touchscreen Display
    Sleek Design
    Z-Wave Plus Compatibility
    Affordable Price-Tag
    More Information

    Last update on 2017-11-09 / Affiliate links / Images from Amazon Product Advertising API

    Thermostats play an important role in every home automation system because most people would like to optimize their monthly energy bills with the help of cutting edge technology. One benefit of a perfectly automated smart home is the ability to cut your costs in the long run letting the system basically pay for itself with the cost savings in the upcoming years. In fact the return on investment of proper home automation should be very high – if it is done right. You might have already read our article about smart thermostats which clearly lines out the benefits of these devices. You probably have even already decided that you definitely need to have one of those gadgets and that there is no way around it if you want to have an actual smart home. The problem is that there so many products out there in the wild that most home automation lovers feel a bit overwhelmed by the variety of devices. Moreover there is the wide range of different automation protocols which makes the decision even harder. But don’t worry, if your home automation system is centered around Z-Wave or consists at least of one Z-Wave enabled controller we have selected the best products that will fit your needs. On this page you will find short reviews of what we would consider the best z-wave thermostats. To be honest, there are not a lot of programmable thermostats out there that speak Z-Wave which made the selection a bit easier.

    Our Winner: GoControl Z-Wave Thermostat

    Last update on 2017-11-09 / Affiliate links / Images from Amazon Product Advertising API

    There aren’t a lot of sophisticated Z-Wave thermostats on the market and GoControl certainly doesn’t lead the pack in innovation. Nevertheless, the company has managed to provide a decent product with a great array of features that work seamlessly together. Above all else, a thermostat should be compatible with as wide of a variety of home heating and cooling systems as possible. And in fact, the main reason we choose this device as our winner is just that. The GoControl Z-Wave Thermostat has a great compatibility with most home heating systems. Plus, it’s Z-Wave capabilities are enhanced by a long range and great hub support. The device also works with Amazon Alexa, but of course, for the purpose of using it, you will need a smart home hub.

    Pros

    • Works with Amazon Alexa
    • Compatible with most Z-Wave hub systems
    • Great Support of H/C Systems

    Cons

    • Doesn’t Support Z-Wave Plus
    • Extremely Limited Display

    Trane Z-Wave Thermostat

    Last update on 2017-11-09 / Affiliate links / Images from Amazon Product Advertising API

    While boasting a slightly higher price tag than the other thermostats on this list, the Trane Z-Wave Thermostat also has one of the sturdiest builds. Working with Alexa, with a hub required, the device is extremely easy to setup. With its sleek design, the product offers you full remote control of your smart home heating/cooling system via the Z-Wave protocol.

    Pros

    • Amazon Alexa Integration
    • Extremely easy to Install
    • Supports most Z-Wave hubs
    • Compatible with most H/C Systems

    Cons

    • Doesn’t Support Z-Wave Plus
    • High Price Tag

    Honeywell YTH8320ZW1007/U Z-Wave Thermostat

    Last update on 2017-11-09 / Affiliate links / Images from Amazon Product Advertising API

    Honeywell has been in the thermostat industry for a couple of decades and recently also started to manufacture devices that are tailored to the requirements of typical smart homes. This of course also includes having at least one thermostat in their product line that speaks ZWave.  The Honeywell YTH8320 makes no secret of having that exact functionality by showing the official Z-Wave logo at the top of the minimalistically designed case. Its display is showing a clear differentiation between background and text making it easy to read the temperature even in dark environments. A nice feature is the so called Wire saver which allows the use without a common wire. But this information comes from the manufacturer and we cannot confirm if it really works without a C-Wire. Please refer to our section above on how to overcome this problem.

    Pros

    • Clean design
    • Nice display
    • Well established and renown manufacturer
    • Fully programmable
    • No need for a C-Wire (according to Honeywell)

    Cons

    • A bit more expensive but well worth it
    • Extremely Outdated Design

    2gig CT100 Z-Wave Thermostat

    Last update on 2017-11-09 / Affiliate links / Images from Amazon Product Advertising API

    For the past couple of years 2gig has made a name for itself in the Z-Wave Home Automation branch. Its low-priced products offer solid quality without inflating the complexity by offering too many features. The devices do what they are supposed to in a very reliable fashion. The 2gig CT100 is no exception and moreover it is the least expensive thermostat in our list. Admittedly, the display is not the best of its class in terms of design but it still offers touch functionality and back illumination.

    Pros

    • Low price tag
    • Minimalistic design
    • Fully programmable
    • Good Z-Wave communication range

    Cons

    • Display doesn’t show a lot of info
    • Design is Relatively Outdated

    RCS Z-Wave Communicating Thermostat

    Last update on 2017-11-09 / Affiliate links / Images from Amazon Product Advertising API

    The california based company RCS (Residential Control Systems Inc.) isn’t well known yet for a majority of Home Automation lovers. But it has already established quite some reputation in the manufacturing of programmable thermostats. After gathering a lot of experience in this market the engineers have realized the growing importance of Smart Home technology and decided to build a thermostat with integrated ZWave functionality. RCS is known for putting a lot of effort in the technology of its products. That’s why the Z-Wave Communicating Thermostat might not be a real beauty from the outside but its insides are working perfectly together.

    Pros

    • Bright, illuminated blue display
    • Strong Z-Wave radios with extended range

    Cons

    • Display font doesn’t look very modern
    • Overall design not very beautiful
    • Most expensive thermostat in our list

    Radio Thermostat CT100 Plus Z-Wave Plus Thermostat

    Last update on 2017-11-09 / Affiliate links / Images from Amazon Product Advertising API

    Challanging the CT100 by 2Gig, the Radio Thermostat CT100 is the Z-Wave smart thermostat by the company with the same name. Delivering their new “plus” version, Radio Thermostat have made sure that their device now support the latest iteration of the Z-Wave homr automation protocol. With an updated design that looks rather stylish, especially compared to other products on the market, the CT100 is definitely a worthy purchase choice for any home automation enthusiats that loves Z-Wave.

    Pros

    • Z-Wave Plus Compatible
    • Complete DIY Programming Customization
    • Affordable Price Tag
    • Decent Z-Wave communication range

    Cons

    • Build is Cheap and Plastic-y
    • Display Doesn’t Show Much Information

    IRIS CT101 Z-Wave Thermostat

    Last update on 2017-11-09 / Affiliate links / Images from Amazon Product Advertising API

    If you are searching for something affordable that works with the most popular Z-Wave smart home hubs on the market, you should look no further than the Iris CT101 z-wave smart thermostat. Developed by Radio Thermostat for IRIS, the CT101 doesn’t differ much from its Radio Thermostat CT100 counterpart with much hardware-wise. However, the price tag of the model for IRIS is much cheaper than its other sibilings from the manufacturer.

    Pros

    • Extremely Affordable Price Tag
    • Complete DIY Programming Customization
    • Works with Most Smart Home Hubs
    • Support for Z-Wave Products

    Cons

    • Build Feels Cheap
    • Display Shows Little to no Information

    Full List of Reviewed Z-Wave Thermostats

    Did you choose a product? We hope that we’ve helped you make your purchasing choice. For your convenience, here is the full list of products we’ve reviewed to write our list of best z-wave thermostats.

    Last update on 2017-11-09 / Affiliate links / Images from Amazon Product Advertising API

    Tip: How to install a thermostat without a C-Wire

    Almost all smart and programmable thermostats need HVAC (heating,ventilating, and air conditioning) system with 5 wires to operate. The mysterious 5th wire that most people don’t know or haven’t seen yet is the Common Wire or often referred to as C-Wire which is normally colored in black. A lot of sources state that this wire is responsible for powering the device but that information is not completely correct. The Red Wire (R-Wire) is actually the power source and therefore called the “hot” wire. The C wire is simply the “common” side of the transformer 24V output and closes the circuit while allowing a continuous flow of 24V energy to power the thermostat. Unfortunately not all HVAC systems already have a C-Wire. In fact less than 40% of the United States households even have programmable thermostats which leads to a majority of homes without the need of having the necessary wiring required by the modern devices in the first place. Some thermostats work without it by using some kind of workaround – one of them being the Nest Learning Thermostat, which is not a Z-Wave thermostat , but a Wi-Fi thermostat (most of our recommended Z-Wave controllers support both protocols). But be warned that a few customers still report about having problems without a proper C-Wire installation. The Nest homepage states the same: “The Nest Learning Thermostat is designed to work even if your home doesn’t have a common “C” wire, but installing a new C wire may be required in rare cases.”

    But what if I told you there is a simple device that avoids the hassle of calling a HVAC electrician and pay for a complete rewiring of half your home. I am talking about the Venstar Add-A-Wire 5 Wire to 4 Wire Adapter which is overwhelmed with good reviews on amazon by satisfied customers that finally got their thermostat working with just paying an additional $30. Venstar provides easy to follow installation videos.

    However, in some households there are rare wiring setups like 2-wire or even 1-wire combinations. In these cases a complete rewiring performed by a professional is recommended to be absolutely future proof as our homes become smarter and smarter.

    About Author

    In the process of creating a web page completely dedicated to the “Smart Home”. Find info on all the different aspects of Home Automation & Home Security.

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