Top Thermostats Without C Wire Reviews

Venstar ACC0410 Add-A-Wire Accessory for 24 VAC Thermostats (4 to 5 Wires), White

  • In applications where additional wiring cannot be run, the Add-A-Wire accessory can be used to add a wire to the thermostat. C-Wire Terminal is required.
  • Great for installations with a broken “common” wire or retrofits..
  • Easy to install, Easier than running new wire..
  • Allows 5 wire thermostats to use only 4 wires. Also allows 5 wires to work like 6 wires..
  • Compatible with Venstar ColorTouch, Explorer, Explorer Mini, Slimline, Small Series, FlatStat, and Value Series thermostats..
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Smart Thermostat Installation - 2 Thermostats

  • Wire two thermostats to power and your HVAC system. C-Wire required.
  • Configure your device to work with SmartApp and Alexa integration (Alexa device sold separately). Accounts must be created by Customer. Setup of Alexa....
  • Clean up area. Packaging to be disposed of by Customer Please have all areas where the installation is occurring fully accessible and clear of....
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Smart Thermostat Installation

  • Wire one thermostat to power and your HVAC system. C-Wire required.
  • Configure your device to work with SmartApp and Alexa integration (Alexa device sold separately). Accounts must be created by Customer. Setup of Alexa device not included.
  • Testing new device for proper function. Clean up area. Packaging to be disposed of by Customer.
  • Please have all areas where the installation is occurring fully accessible and clear of obstructions for the technician.
  • Additional charges will apply for C-Wire adapter installation (sold separately) and installation of additional thermostats. Installation location is subject to provider discretion. Installation on drywall only.
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24 Volt Transformer, C Wire Adapter for Nest Honeywell Ecobee and Sensi Thermostat, Doorbell Transformer Compatible with Wyze Video Doorbell

  • UNIVERSAL DESIGN – Power your popular smart Thermostats(Nest, Ecobee, Honeywell, Sensi) and Doorbells(Nest Hello doorbell, Zmodo WiFi smart doorbell etc.) and other devices that require constant 24 volt power for operation, enables you to charge your devices safely..
  • EASY INSTALLATION – Assemble along the wall from your outlet to the doorbell and thermostat without the existing wiring. Super easy to install that can be able to set up in minutes..
  • CONVENIENT – With this C Wire Adapter, you could able to charge your doorbells and thermostats without any worry about interrupting, which makes it a wonderful doorbell pro transformer. You don’t need to take off the battery inside the doorbells and just connect this transformer, keep doorbells charging any time you want..
  • MAKE HOME SAFER PLACE – TAICHIPANDA Doorbell transformer is UL listed and has built-in 2A thermal fuse short-circuit protection, which makes the home a safer place and you can use it without worries..
  • TO BUYERS – TAICHIPANDA has engaged in developing and manufacturing adapters for more than 10 years, The advanced production equipment and rigorous design ensure that each of our hardwired transformers is of the best quality. We promise 180-day money back and fast after-sale service..
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24 Volt Transformer, C Wire Adapter for Nest Honeywell Ecobee and Sensi ThermostaDoorbell Transformer for Nest Hello Doorbell and Any Doorbells Require 24V Power Supply

  • UNIVERSAL DESIGN - Power your popular smart Thermostats(Nest, Ecobee, Honeywell, Sensi) and Doorbells(Ring Video Doorbell, Ring Video Doorbell 2 & Ring Video Doorbell Pro, Nest Hello doorbell, Zmodo WiFi smart doorbell etc.) and other devices that require constant 24 volt power for operation, enables you to charge your devices safely..
  • EASY INSTALLATION - Assemble along the wall from your outlet to the doorbell and thermostat without the existing wiring. Super easy to install that can be able to set up in minutes..
  • CONVENIENT - With this C Wire Adapter, you could able to charge your doorbells and thermostats without any worry about interrupting, which makes it a wonderful Ring doorbell pro transformer. You don't need to take off the battery inside the doorbells and just connect this transformer, keep doorbells charging any time you want..
  • MAKE HOME SAFER PLACE - TAICHIPANDA Doorbell transformer is UL listed and has built-in 2A thermal fuse short-circuit protection, which makes the home a safer place and you can use it without worries..
  • TO BUYERS - TAICHIPANDA has engaged in developing and manufacturing adapters for more than 10 years, The advanced production equipment and rigorous design ensure that each of our hardwired transformers is of the best quali....
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Aube Technologies RC840T-120 Electromechanical Relay with Built In Relay

  • Direct replacement for any brand name relay.
  • Built-in 24 V transformer for easy installation.
  • Compatible with 24V thermostats with 2-wire connections (R,W) or 3-wire connections (R,W,C).
  • Immediate relay activation provides improved temperature control and comfort.
  • Epoxy-soundproofed relay ensures quiet operation.
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Honeywell Home RENEWRTH6580WF 7-Day Wi-Fi Programmable Thermostat Renewed

  • ENERGY STAR CERTIFIED. Honeywell Home Wi-Fi thermostats are energy-efficient without sacrificing performance..
  • SMART HOME INTEGRATION. The Wi-Fi 7-Day is compatible with voice assistant devices like Amazon Alexa, Google Assistant, Microsoft Cortana, and more..
  • THERMOSTAT THAT FITS YOUR LIFE. 7-day, 4 periods per day, flexible programming lets you sync your comfort with your schedule..
  • C-WIRE POWER ADAPTER REQUIRED: Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a....
  • SIMPLE INSTALL FOR A DIY PROJECT. The Wi-Fi 7-Day Programmable Thermostat is easy to configure and install yourself..
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Aube RC840T-240 On/Off Switching Electric Heating Relay with Built-in 24 V Transformer

  • Direct replacement for any brand name relay.
  • Built-in 24 V transformer for easy installation..
  • Compatible with 24V thermostats with 2-wire connections (R,W) or 3-wire connections (R,W,C).
  • Immediate relay activation provides improved temperature control and comfort.
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iPower GLFANXCONTROLA Exhaust Variable Vent Controller Inline Duct Fan Speed Adjuster, Max 350W, 1 Pack

  • ★ Compatible with 24V thermostats with 3-wire connections (R, W, C) or 2-wire connections (R, W).
  • ★ Immediate relay activation provides improved temperature control and comfort.
  • ★ Easy to install, merely munted it on the side of existing junction box and attached the wires from the new thermostat.
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Honeywell RCHT8612WF Home T5+ Smart Thermostat

  • Optional power adapter included – Wi-Fi thermostats typically require extra power via a “C” wire. Many homes lack this wire, so this adapter gives you a simple, low-voltage alternative. It’s easy to install and fits discreetly near your heating and cooling system. Extra power via a “C” wire. Many homes lack this wire, so this adapter gives you a simple, low Voltage alternative. It’s easy to install and fits discreetly near your heating and cooling system.
  • 7-day flexible scheduling or location based temperature control – it’s your choice. 7-day scheduling programs your thermostat. Geofence technology helps make you comfortable by using your smartphone’s location to know when you’re away and when you return. Programs your thermostat. Geofence technology helps make you comfortable by using your smartphone’s location to know when you’re away and when you return.
  • Smart alerts – push notifications remind you to change your filter and warn you of extreme indoor temperatures.
  • Auto change from heat to cool – automatically determines If your home needs heating or cooling to provide maximum comfort.
  • Fan operation* custom Fan settings to circulate more or less air, as needed, to keep air movin....
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MEROM 24V 500mA 26ft C Wire Transformer Adapter for Thermostat and Doorbell, Compatible with Nest/Ecobee/Sensi/Honeywell Thermostat, Nest Hello Doorbell/Ring Doorbell Power Supply

  • UNIVERSAL DESIGN: US power cable Powers your popular smart thermostats((Nest, Ecobee, Honeywell, Sensi) and doorbells(Ring Video Doorbell, Ring Video Doorbell 2 & Ring Video Doorbell Pro,Nest Skybell , etc.) and other devices that require constant 24 volt power for operation, enables you to charge your devices safely..
  • EASY INSTALLATION: Assemble along the wall from your outlet to the doorbell and thermostat without the existing wiring. Super easy to install that can be able to set up in minutes..
  • CONVENIENT: With this C Wire Adapter, you could able to charge your doorbells and thermostats without any worry about interrupting, which makes it a wonderful ring doorbell transformer. You don’t need to take off the battery inside the doorbells and just connect this transformer, keep doorbells charging any time you want..
  • LONG CABLE: Our cable is 8M(315 inch) long and you do not worry about the distance between the socket and the Honeywell Smart Wifi Thermostat. This allows you to easily plug it into an electrical outlet inside or outside your house..
  • SAFE AND CONVENIENT: Our battery backup has gotten certificate. A quick fix to the problem of “Low batter” you can charge it directly(plug adapter into outlet and power up). that means you don’t need to r....
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HQRP 120V-240V to 24V 40VA Transformer Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v, UL

  • POWER UP MULTIPLE THERMOSTATS / DOORBELLS: replaces and upgrades underpowered transformer with this 24V AC transformer, offering plenty of power for single or multiple thermostats and doorbells at the same time.
  • UNIVERSAL COMPATIBILITY: this 24v transformer fits for Nest, Ecobee, Honeywell and Sensi smart thermostats.
  • Also compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation.
  • Safety Features: High Efficiency and Reliability.
  • 1 Year warranty! EASY TO INSTALL: screw down or threaded clamp to electrical box, simple to wire up.
  • Compatible With: 24V 40VA Transformer compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell Power Supply Adapter Door-Bell 120v-240v-to-24v Replacement.
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Honeywell THP9045A1023 Wiresaver Wiring Module for Thermostat

  • Wiring module that connects to “K” terminal on thermostat and separates into Y and G signals to equipment.
  • Can be used in conventional and heat pump systems.
  • Requiring one wire more than is available.
  • Wire Saver for THX9000 Series Thermostats.
  • Color: Gray, Easy push wire terminals that provide a secure lock with no need to screw in wires..
  • Can be used when 5 wires are needed and only 4 wires are available.
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