18/8 Thermostat Wire 20FT, 18 AWG 8-Conductor Solid Bare Copper HVAC Control Cable, CL2 Rated for in-Wall Installation, Perfect for Smart Thermostats, Doorbells & Security Systems
18/8 Thermostat Wire 20FT, 18 AWG 8-Conductor Solid Bare Copper HVAC Control Cable, CL2 Rated for in-Wall Installation, Perfect for Smart Thermostats, Doorbells & Security Systems
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About This
- [100% Solid Bare Copper - NOT CCA] Unlike Copper Clad Aluminum (CCA) wires, our thermostat cable is made of 100% solid bare copper. This ensures maximum conductivity, lower resistance, and higher durability, preventing signal loss in your HVAC system.
- [CL2 Rated for In-Wall Safety] Safety is our priority. This 18/8 wire is CL2 rated, meeting fire safety standards for residential and commercial in-wall installations. The durable PVC jacket provides excellent protection against heat and external wear.
- [Universal 8-Color Coding] Comes with 8 distinct color-coded conductors: Red, White, Green, Yellow, Blue, Black, Gray, and Brown. This standard palette simplifies identification for complex multi-stage HVAC systems and smart thermostat installations.
- [Smart Thermostat Compatible] The ideal choice for modern smart thermostats requiring a C-Wire (Common Wire). Fully compatible with Nest, Ecobee, Honeywell, Emerson, and Amazon smart thermostats.
- [Versatile Low-Voltage Use] Beyond HVAC systems, this flexible and high-tensile strength wire is perfect for doorbells, intercoms, security alarms, and other low-voltage power applications. Designed for clean stripping and reliable connections.
Overview
- Color : Brown
- Brand : XRDS -RF
- Number of Cable Strands : 8
- Number of Items : 1
- Manufacturer : XRDS -RF
WE MAKE SMART LIVING SIMPLE.
OUR TEAM HELPS SECURE YOUR HOME.
SmartHomeValueHub helps homeowners create safer, smarter, and more convenient living spaces with trusted smart home solutions built for everyday life.
From smart security cameras and smart locks to video doorbells, thermostats, lighting, and home automation essentials — we focus on products that improve real comfort, safety, and efficiency.
Our goal is simple: better protection, lower energy costs, and smarter daily living for every home.
Why Homeowners Trust SmartHomeValueHub
✔ Easy Setup
✔ Matter Compatible
✔ Smart Security
✔ Energy Saving
50K
HaSMART DEVICES INSTALLEDppy Clients
15+
YEARS OF SMART HOME EXPERTISE
98%
CUSTOMER SATISFACTION RATE
365
RELIABLE SUPPORT YEAR-ROUND
Smarter Security. Lower Bills. Easier Living.
SMART HOME FAQ
Yes — many modern devices support multiple platforms.
Matter-certified devices can work across Alexa, Google Home, and Apple HomeKit at the same time.
Not always.
Smart bulbs, plugs, cameras, and video doorbells are often easy DIY installations, while full security systems may need professional setup.
Many devices still work manually or through local control.
You may lose remote app access, but locks, lights, and thermostats often continue basic functions.
Security depends on the device and setup.
Use strong passwords, trusted brands, firmware updates, and secure Wi-Fi for better protection. Privacy and unauthorized access are common concerns in smart homes.
Most homeowners start with:
Smart Security Cameras
Smart Door Locks
Smart Thermostats
Smart Plugs
Video Doorbells
Yes.
Smart thermostats and smart plugs help reduce wasted energy by automating heating, cooling, and power usage.
It depends on your ecosystem.
Alexa → widest compatibility
Google Home → strong for Android users
Apple HomeKit → best privacy
Home Assistant → advanced control
Smart Home Tips, Trends & Buying Guides
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