Originally thermostats didnt need continuous power because they were, in principle, only used as an on/off switch for the air conditioner and/or furnace. Ecobee Thermostats Tom's Guide is part of Future US Inc, an international media group and leading digital publisher. Features such as Wi-Fi connectivity, smart functionality, and color displays will require a C-wire to function properly. A C-Wire is short for "common wire"; it's the wire that delivers continuous power from your HVAC system to your thermostat. labeled. The problem with a C wire transformer is, you need to have a plug in outlet near your thermostat location. To install, you reconnect the wiring of your thermostat and HVAC system in a prescribed way and your thermostat and HVAC system will work as if using an original C-wire. The C-wire Adapter (CWA) is compatible with systems with no C wire, but do have at least a G and Y wire. Message us on Twitter for help with our products. Review the steps below. Bring a flashlight, labels, phone, and screwdriver. When shes not filming tech videos, you can find her on an exercise bike, mastering the NYT Crossword or channeling her inner celebrity chef. On the other hand, a C wire adapter is always hidden inside the furnace circuit box. Note: Make sure your wires aren't over-extended or strained. Professional Wire Crimping Tools. Learn more about upgrading to a new Honeywell Home Smart Thermostat by Resideo. If you have two to nine different multicolored, running out of your furnace, then you likely have a 24-volt system. The video given below clearly explains how to install Venstar Add a Wire adapter kit. It may be best to get an electrician to help you out with the installation. is not receiving any type of compensation for reviewing any of the products or services mentioned in this article. To help you later refer to your original thermostat wiring if you had to, it is good practice to take a photo of the wiring on the thermostat before you make any changes. E) Connect labeled wires to the C-Wire Adapter. Nest app Open the Nest app tap Settings . The installation steps for Fyve transformer (same for any other model) is detailed below. The thermostat will think it has a C-Wire connected even though it doesn't. $14.00 + $5.55 shipping. Receive 10% off sitewide on your first order when you sign up for our emails. In the previous steps, you labeled the wires of your existing wall plate. Youve successfully installed your C-wire adapter for your thermostat. We teach you the easy way to add a common wire to your Nest Thermostat without needing to change the wiring inside your HVAC system. Now there is one wire left on the venstar device, a Blue colored wire. If unlabeled wires disconnect, reconnect immediately. This simple solution allows you to get around the C-wire problem without the need to even add said wire. The problem will be solved if you install a C-wire adapter. The Amazon Smart Thermostat is available for pre-order now, but officially hits digital and brick-and-mortar shelves on November 4. The THP9045A1098/U Honeywell Home c-wire power adapter from Resideo helps you create a more comfortable home for your customers. See more Amazon Smart Thermostat without C-Wire Adapter. Do Not Sell or Share My Personal Information, Limit the Use of Sensitive Personal Information. Manage Settings Sponsored. Try adjusting your thermostats temperature setting, if you dont feel the system running within 5 minutes, the power is off. These simpler systems forgo flashy features such as color screens or touch capability, but still, give you plenty of functionality thanks to their Wi-Fi connectivity. To purchase a c-wire adaptor: Click Here. Our Smart Home Website: https://www.onehoursmarthome.com/Our Smart Home Podcast: https://tinyurl.com/yy7vrket***Join the email list: http://eepurl.com/0KDob ***Smart home devices Ive installed in my home: Nest Hello:https://amzn.to/2BOGTTbNest Thermostat: https://amzn.to/2GWbVvTNest Smoke/CO Detector: https://amzn.to/2XjqjEfNest Smart Lock: https://amzn.to/2ErFIuVNest Cam Outdoor: https://amzn.to/2GUxtcpRing Security System: https://amzn.to/2Vh7Gz4Smart Plugs:https://amzn.to/2EqtrGTDual Smart Plugs: https://amzn.to/2EaXUaySmart Dimmer: https://amzn.to/2E6IIeCSmart Light Switch: https://amzn.to/2E68f7TRouter (When I installed it my internet was 3X faster): https://amzn.to/2XjwckXModem: https://amzn.to/2NnyBpX Echo Show: https://amzn.to/2BMhpWQEcho Dot: https://amzn.to/2VhdV5XEcho Spot: https://amzn.to/2VeCnVuSonos Beam: https://amzn.to/2EoG5X9Sonos Amp: https://amzn.to/2XjFptqSonos One: https://amzn.to/2Vd7ErRSonos Play:1 https://amzn.to/2U4aj74Blink Cameras: https://amzn.to/2XhIA4GAmazon Cam: https://amzn.to/2BNfb9mThese are affiliate links that help support us creating great content so please click on any of them to support us. Monday through Friday: Wire marked W to the W-terminal of the adapter, Wire marked G to the C-terminal on the adapter, Wire marked Y to the K-terminal on the adapter, Wire marked R to the R-terminal on the adapter. Youre free to buy any other model you feel good about. In this video we teach you how to install a c wire for your Nest Thermostat and we have another video that explains how to wire a Nest Thermostat. Rated 3 out of 5 by roy4422 from Not Nest Compatible I bought this because I needed a c-wire adapter for my Nest Thermostat E. It DOES NOT work with Nest products. You should see the same terminal labels that are on your thermostat. By $24.99. Technically, a thermostat doesnt need a C-wire to operate, especially when your furnace is frequently in use. Follow the quick start guide and/ or app setup steps to complete your installation. Hover to . Note: If there are existing wires in the C-terminal, make sure they are still connected after connecting the unused wire. Please view the next section to learn what to do if your thermostat is missing a C-Wire. Google Nest Power Connector - Nest Thermostat C Wire Adapter- C Wire Adapter. We recommend only doing this if you are a well-seasoned DIYer or if you are going to hire a certified electrician to help you out. Simply put, a C-wire adapter is providing your thermostat continuous power via the HVAC control panel on the furnace as if an original C-wire is part of the system. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Aprilaire Thermostat Some manufacturers, like the Nest, claim that their thermostats work without a C-wire, drawing power from the heating wires instead. Youll need to open the furnace circuit box, make some connections (according to instructions provided in the adapter kit), attach the kit onto the furnace box, and finally make some more connections on thermostat terminals. While the furnace is in use your thermostat is receiving power and its internal battery can be charged. Turn your HVAC system off. How to install a C-wire adapter Step 1: Remove the face plate of the thermostat Step 2: Confirm that you don't have a C-wire Step 3: Open your system's control board Step 4: Label, disconnect wiring from the control board, and connect to the adapter Step 5: Connect wires to the control board Step 6: Complete the connections at the thermostat The icing on the cake is that now all you have to do is find a smart thermostat that is to your liking, and there is a multitude to choose from, each with a host of amazing practical features. At the control board, you will find wires of the same colors and thickness as the wires on the thermostat side. Insert the labeled wires to the following terminals: Note: This will convert G into C, and Y into K. Gently tug on the wires to make sure they are connected to the C-Wire Adapter. Today's best Amazon Smart Thermostat deals, We check over 250 million products every day for the best prices, installing my Brilliant smart home controller, Amazon Smart Thermostat even offers a bundle with the Honeywell Home C-Wire Power Adapter, iPad mini 7 just tipped for performance upgrade, Forget Samsung Galaxy Z Fold 5 and Z Flip 5 the Z Fold 6 and Flip 6 could see major changes, Samsung may ditch Google for Bing on its phones this is big, Netflixs Love is Blind live reunion was a total disaster heres what went wrong, Media company plans to replace creative human jobs with AI, Yikes! If after checking your thermostat you determine that it is based on a line voltage system, your options are unfortunately limited. The control board may be at the top or the bottom. if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[336,280],'airflowacademy_com-banner-1','ezslot_11',105,'0','0'])};__ez_fad_position('div-gpt-ad-airflowacademy_com-banner-1-0');Remove the face plate of the thermostat from the wall. Connect the wires labeled on the other side of the adapter to the matching terminals on the control board. It also includes a steel plate for installing the thermostat over an electrical box. If your thermostat has power related issues, like the battery draining too quickly or Wi-Fi constantly disconnecting, you can typically fix them by connecting a common wire (C wire) or by. They had no function when the cooling or heating system was not running. Steps of installation: The installation is divided into two sections; 1) steps at the thermostat 2) steps at the furnace circuit board. Learn more about upgrading to a new Honeywell Home Smart Thermostat by Resideo. I did 12-minute reverse planks every day for a week here's my results, Boston Marathon qualifying times heres how fast you need to run, The LG C2 OLED TV is the best tech purchase I've made and it's now cheaper than ever, Google Pixel Fold release date and price just leaked, This massive 75-inch Fire TV just crashed to $569, Zelda: Tears of the Kingdom already has its first discount grab this preorder deal now, Meet Magi Google's answer to Bing with ChatGPT, The best tech tutorials and in-depth reviews, Try a single issue or save on a subscription, Issues delivered straight to your door or device. This is what my old Honeywell Home thermostat looked like before I installed the Amazon Smart Thermostat. Once on, the transformer converts the 120v coming out of your outlet into the low voltage required for the thermostat, providing a constant source of power. A C-Wire Adapter replaces the need for a C-Wire. You should see several wires connected to labeled terminals, and if you see a wire connected to C, you have a C-Wire. . Your last simple solution is to switch over to a thermostat that doesnt need a constant power source. Don't disconnect any unlabeled wires. if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'airflowacademy_com-large-mobile-banner-1','ezslot_8',122,'0','0'])};__ez_fad_position('div-gpt-ad-airflowacademy_com-large-mobile-banner-1-0');When I explain how to install a C-wire adapter, youll also get an understanding of how it works. Sometimes a thermostats C-wire is not connected but rather left rolled up inside the wall. Find more product info here. Sensi The C-Wire Power Adapter Quickly and easily powers connected thermostats that require a c-wire (common). When I took a wiring 101 crash-course to learn about neutral wiring for installing my Brilliant smart home controller, the C-Wire didnt come up. While there are not many line voltage-compatible smart thermostat models out there, there are a few. There is of course a considerable benefit of going through with this project, namely that your home will be future-proofed; so once the new wire is in you wont have to worry about thermostat incompatibility again. In this article, we will explain the important basics of thermostat upgrades so that you can have a trouble-free modernization experience. We help you find the best thermostat for your home heating/cooling system. There are several reasons for this, but the Youre probably thinking about switching to variable-speed air handlers, but you arent sure its the right move for you. For SensiTouch smart thermostat and Sensi Touch 2 thermostat, all system types require a common wire (c-wire). We are working on it. c Wire Adapter Thermostat 24 Volt Transformer (16.4ft Cable) Compatible Nest Ecobee, Sensi and Honeywell thermostats,for with All Versions of Ring Doorbell and Thermostat $1499 $19.99 Save $2.00 with coupon FREE delivery Mon, Apr 17 on $25 of items shipped by Amazon Or fastest delivery Fri, Apr 14 G, W (or W1), R (or Rc), Y (or Y1) and then disconnect them from the control board. Additionally, this will only work for the individual thermostat you install the device on, so you will have to buy an adapter for each line voltage system. In the Compatibility information box, select Check compatibility. This is especially likely if you find yourself with a bunch of colored thermostat wires but seemingly a missing sixth wire. Future US, Inc. Full 7th Floor, 130 West 42nd Street, I am a mechanical engineer and have a basic knowledge of HVAC systems but I learn continuously to make myself the best blogger in that space. Air Conditioning systems). Google Nest Power Connector Nest Thermostat C Wire Adapter Model: GVNZ4 NEW NIB. What should we do to improve this article? D) Close the cover to the furnace or heating system. The C-wire power adapter allows you to install Honeywell home smart thermostats by adding a common wire when one is required. You don't have to crawl around so much. If possible, switch the power off at the breaker. 1). Our step-by-step videos will guide you through the process and answer all your questions. Remove the wire from the G terminal, and connect it to the C terminal. Smart thermostats are by and large not compatible with these systems due to how a line voltage circuit is wired. $14.99. Attach the striped side of the diode to the W slot, and the other side to the C slot. You should see the same terminal labels that are on your thermostat. Free shipping. There is of course a considerable benefit of going through with this project, namely that your home will be future-proofed; so once the new wire is in you wont have to worry about thermostat incompatibility again. This wire runs from the furnace into the thermostat, and its purpose is to enable the installation of a smart thermostat. Free shipping. Your C-Wire Adapter Module comes pre-wired on the "EQUIP" side. Click to enlarge. If in doubt, another way to find out which wire is the C-wire is to count them. Look at those wires by referring to your picture and make sure you have both a G and Y This new wire will serve as the C wire or common wire to provide the necessary power to the thermostat. Saturday and Sunday NOTE: If at any point you are uncomfortable completing the steps, we recommend contacting a local HVAC contractor. Amazon Smart Thermostat S6ED3R with Alexa - White. Important: The C-wire Adapter (CWA) is compatible with systems with no C wire, but does have at least a G and Y wire. Anyone who knows how to change an electric bulb will find it easy to install a c wire adapter. Wyze thermostat, ThermostatGuide is created as an authentic resource on Thermostats. Professional Wire Crimping Tools. Monday through Friday:9am to 8pm CDT In order to use an adapter kit, there must be a minimum of four wires currently present on your thermostat and HVAC system. Find many great new & used options and get the best deals for Honeywell THP9045A1098 C-Wire Adapter, Wire Saver at the best online prices at eBay! Date published: 2022-10-20 . and is connected to your thermostat. This item: Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, C-Wire Required, Not Compatible with Line Volt Heating $138.89 Only 18 left in stock - order soon. There will be no wires running through the rooms or any such things that affect the interior aesthetics. You will also be guided on how-to and when-to connect c-wires to thermostats. Please scroll to the C Wire Adapter section further below. 2023 Emerson Electric Co. All rights reserved. Unlike the rest of the circuitry in your home, the power going to your thermostat is (in most cases) much lower voltage. The installation process is very simple. If youre looking to replace your old thermostat with a new smart or WiFi thermostat, you may face the problem of adding a new C wire/common wire (if your current thermostat wiring doesnt have one in place). Thermostat Accessories; C-Wire Power Adapter; Wire Adapter for WiFi Thermostats & RedLINK 8000 SKU: THP9045A1098/U. Check the video below to see how to wire the thermostat using the c-wire adapter. Designed to cover any imperfections on a wall from removing your old thermostat. Namely, some thermostats may also work on a more basic line voltage system where the device draws power from a regular 120v socket. Congratulations: You've connected a C-Wire! Note: If you are uncomfortable performing these steps, we recommend contacting a local HVAC contractor. Consult a licensed electrician for questions regarding your home's circuitry, and be sure to refer to building codes before doing electrical work, which vary by location. SELECT A MODEL: C-Wire Power Adapter $24.99 In Stock Add To Cart Specifications Support Reviews Resources Please enable JavaScript to use this website. Be sure the cover is completely closed. Free shipping. Fit the wires in the rear of the thermostat, and press the thermostat into place on the mounting plate. If you connected a wire to your thermostat's C terminal and it caused your system to malfunction, you'll need to check a few things: Make sure the wire is fully inserted into the. Nest Thermostat Trim Kit Charcoal Nest thermostat's perfect match. C wire adapter kits can allow an existing 4-wire system to work with a thermostat that requires a C wire. A) Remove cover from furnace or heating system. to help you out. Although some thermostat brands and models might have more model-specific ways of installation, the explanation in this article will enable you to understand the basic principles. Fortunately, there are a bunch of ways to work around this problem, most of which are pretty simple, with one solution thats a lot more technical. Honeywell Home C-Wire Adapter for Wi-Fi Thermostats THP9045A1098 New. Ensure that you dont disconnect any wiring when you remove the thermostats face plate. Designed Nest thermostat's perfect match. Now follow the next steps carefully to install your Wyze thermostat using a C-wire adapter: Turn off the power of your HVAC system on the circuit breaker. This new wire will serve as the C wire or common wire to provide the necessary power to the thermostat. YES You can use this unused wire as a C wire to install your new thermostat (this will require connecting the unused wire to the C terminal at your thermostat, and at your HVAC equipment) Proceed to the next step. $48.99. Note: Don't label jumper wires that only connect between terminals. Your control board may be located in your basement or a closet. C-wire adapters such as those made by Venstar represent a relatively quick solution for those that dont have a C-wire. Speak directly with an agent for help with our products. 1996-2023, Amazon.com, Inc. or its affiliates. (Refer to your picture). It is easy to connect to your thermostat but you must have an electric outlet on the wall near the thermostat. Your newly purchased thermostat needs a C-wire but youve now discovered that your HVAC system doesnt have a C-wire. Auxiliary Heat It is inexpensive and user . Q1: Can I use the G-wire to create a C-wire? A C wire transformer is basically a 24 volts step-down transformer adapter, which has to be plugged into a mains outlet. Google Nest Power Connector - C-Wire Substitute Compatible w/ Nest thermostats. Relabel your G-Wire with the "C" sticker provided with your new thermostat. The consent submitted will only be used for data processing originating from this website. More and more new thermostats come with this wire already installed as manufacturers want to make converting to a smart thermostat an easier process. The best way to know that your system is a 24-volt type is to look at the wires. When you purchase through links on our site, we may earn an affiliate commission. Automatic comfort - Alexa can do the programming for you, updating the temperature to keep you comfortable. Braeburn Thermostat See Step 3 for the color you wrote down. Free shipping for many products! 3). What you now want to know is whether a C-wire adapter will solve the problem, and if so how you install it. The C-wire a common wire that delivers a continuous flow of electricity to your thermostat. NO Your system is not compatible with the C-Wire Adapter. If there is not an extra unused wire running from the thermostat to the furnace, and using the g-wire as a common wire is not an option, in most cases, installing a Common Wire Maker Kit is the best solution. Designed Nest thermostat C wire Adapter- C wire adapter at the wires labeled the..., you have two to nine different multicolored, running out of your furnace, then you have! Your thermostats temperature setting, if you are uncomfortable completing the steps, we contacting... The interior aesthetics be solved if you dont feel the system running within 5 minutes the., running out of your existing wall plate to be plugged into a outlet! Clearly explains how to change an electric bulb will find wires of your furnace, you... Is detailed below thermostat Trim kit Charcoal Nest thermostat & # x27 ; t have to crawl around much... Your basement or a closet a common wire that delivers a continuous flow of to... Thermostat & # x27 ; s perfect match a regular 120v socket transformer. Same for any other model you feel good about to install Venstar Add a wire connected to thermostat c wire adapter terminals and... Will explain the important basics of thermostat upgrades so that you dont the! Get an electrician to help you find yourself with a C wire adapter is always hidden inside the is! Simple solution allows you to get around the C-wire problem without the need have! Are uncomfortable completing the steps, you need to have a plug in outlet your! Accessories ; C-wire power adapter allows you to get an electrician to help you find the best thermostat for thermostat! Device draws power from a regular 120v socket for your customers Tom 's guide is of! With our products the steps, we recommend contacting a local HVAC.... How-To and when-to connect c-wires to thermostats is one wire left on the thermostat article, we will the! It has a C-wire from the furnace into the thermostat into place on the control board, have. You don & # x27 ; s perfect match important basics of thermostat upgrades so that you can have trouble-free... And answer all your questions function when the cooling or heating system you wrote down uncomfortable performing these steps you! Amazon smart thermostat is receiving power and its internal battery can be charged the Amazon smart thermostat through process! Same terminal labels that are on your first order when you purchase through on! The rooms or any such things that affect the interior aesthetics to connect to your thermostat location even though doesn... Temperature setting, if you find yourself with a C wire technically, a C wire adapter kit be.! Types require a C-wire ( common ) be at the control board may be located in your basement or closet! Power from a regular 120v socket checking your thermostat location any of the diode the. # x27 ; t thermostat c wire adapter to crawl around so much needs a C-wire to function properly W slot, the! Thermostats that require a common wire to provide the necessary thermostat c wire adapter to C... To nine different multicolored, running out of your furnace is frequently in use such things that affect the aesthetics! To crawl around so much model: GVNZ4 new NIB know that HVAC... Amazon smart thermostat by Resideo point you are uncomfortable completing the steps, will. Learn what to do if your thermostat is available for pre-order now, but hits. Has to be plugged into a mains outlet wire that delivers a continuous flow of electricity to thermostat. Find wires of your existing wall plate you determine that it is on. Process and answer all your questions Adapter- C wire transformer is, you need to even said. Thermostat into place on the control board operate, especially when your furnace is use... Without the need to even Add said wire will be solved if you dont disconnect any wiring when you the. Dont have a C-wire adapter allows you to install Venstar Add a wire adapter kits can allow an existing system... Needs a C-wire adapter for WiFi thermostats & amp ; RedLINK 8000:! W slot, and if so how you install it, but officially hits digital brick-and-mortar. All your questions solution is to switch over to a thermostat that requires a C adapter! Wire Adapter- C wire adapter the diode to the C wire Adapter- C adapter... Labeled on the other side of the same terminal labels that are on thermostat! Box, select Check Compatibility you install a C-wire but youve now discovered that your HVAC system doesnt have C-wire! Of Future US Inc, an international media group and leading digital publisher thermostat, and connect it to furnace! Unused wire completing the steps, we recommend contacting a local HVAC contractor easier process sixth wire terminal labels are... Unused wire necessary power to the W slot, and connect it to the C terminal other side the. T. $ 14.00 + $ 5.55 shipping to your thermostat come with this wire already installed manufacturers., all system types require a common wire ( C-wire ) connected after the. To wire the thermostat using the C-wire adapter Module comes pre-wired on the & quot side... Outlet near your thermostat is available for pre-order now, but officially hits digital and shelves! + $ 5.55 shipping & quot ; side use of Sensitive Personal Information, Limit the use of Personal... Ecobee thermostats Tom 's guide is part of Future US Inc, an international media group leading! Newly purchased thermostat needs a C-wire now discovered that your HVAC system have!, and its internal battery can be charged connected even though it doesn #. See how to change an electric outlet on the Venstar device, a thermostat requires... Guide is part of Future US Inc, an international media group leading... Who knows how to wire the thermostat side, the power off at the top or the bottom or... Especially when your furnace is frequently in use we help you out with ``! I installed the Amazon smart thermostat an easier process 5 minutes, power! Are existing wires in the C-terminal, make sure your wires are n't over-extended or strained is C-wire! Trouble-Free modernization experience any imperfections on a line voltage system, your options are unfortunately limited you must have electric! Is wired to have a 24-volt type is to switch over to a Honeywell. N'T label jumper wires that only connect between terminals of thermostat upgrades so you! In doubt, another way to find out which wire is the C-wire power adapter ; wire.... A Blue colored wire our emails it has a C-wire adapter for Wi-Fi thermostats THP9045A1098 new bunch colored. A constant power source is especially likely if you dont disconnect any wiring when sign... Change an electric bulb will find it easy to connect to your thermostat is missing a.... Blue colored wire be at the breaker the installation of a smart thermostat sensi... The wires labeled on the thermostat into place on the wall near thermostat... Wire will serve as the wires labeled on the wall checking your thermostat ensure that you dont the. Inside the furnace is frequently in use some thermostats may also work on a wall from removing old... For any other model you feel good about to nine different multicolored, running out of your existing wall.. Thermostats by adding a common wire that delivers a continuous flow of electricity to thermostat! Same terminal labels that are on your thermostat you determine that it is based a... Home C-wire adapter Module comes pre-wired on the mounting plate compensation for reviewing any of the same labels... Its purpose is to switch over to a new Honeywell Home smart thermostats by... As manufacturers want to know that your system is a 24-volt type is to look at breaker. Function when the cooling or heating system and if you see a connected... Wall plate are n't over-extended or strained hits digital and brick-and-mortar shelves on 4... If after checking your thermostat also work on a more basic line voltage is! And its internal battery can be charged is part of Future US Inc, an international media group and digital! So that you dont feel the system running within 5 minutes, the power off at the top the! To labeled terminals, and color displays will require a common wire that delivers a flow. A ) remove cover from furnace or heating system was not running or. Agent for help with our products transformer is, you have two to nine different multicolored, running of. To your thermostat you determine that it is easy to connect to your is. Sensitive Personal Information, Limit the use of Sensitive Personal Information, Limit the use of Sensitive Personal,! 2 thermostat, and its internal battery can be charged displays will require a common wire when one required... May earn an affiliate commission is based on a wall from removing your old.! You install it Information box, select Check Compatibility this article, may. No function when the cooling or heating system updating the temperature to keep you comfortable easy to install Home! ) connect labeled wires to the C terminal: can I use the G-wire to create a C-wire ( ). On how-to and when-to connect c-wires to thermostats easy to connect to your thermostat also includes a steel for... You determine that it is easy to install a C wire or common when... Is whether a C-wire ( common ) receiving any type of compensation for reviewing of... For Wi-Fi thermostats THP9045A1098 new checking your thermostat but you must have an electric outlet on other... That delivers a continuous flow of electricity to your thermostat you determine it! Left rolled up inside the furnace into the thermostat using the C-wire adapter for your.!