---
product_id: 290885092
title: "Honeywell Home C-Wire Adapter for Honeywell home Wi-Fi Thermostats and RedLINK 8000 series thermostats"
brand: "honeywell"
price: "€ 94.15"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/290885092-honeywell-home-c-wire-adapter-for-honeywell-home-wi-fi
store_origin: SK
region: Slovakia
---

# 24V continuous power Wi-Fi compatible Easy push terminal install Honeywell Home C-Wire Adapter for Honeywell home Wi-Fi Thermostats and RedLINK 8000 series thermostats

**Brand:** honeywell
**Price:** € 94.15
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your smart home upgrade—no C-wire? No problem!

## Quick Answers

- **What is this?** Honeywell Home C-Wire Adapter for Honeywell home Wi-Fi Thermostats and RedLINK 8000 series thermostats by honeywell
- **How much does it cost?** € 94.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/290885092-honeywell-home-c-wire-adapter-for-honeywell-home-wi-fi)

## Best For

- honeywell enthusiasts

## Why This Product

- Trusted honeywell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Made in the USA:** Quality you can trust, engineered and manufactured domestically.
- • **Effortless Installation:** Quick push terminals and adhesive mount get you up and running in minutes.
- • **Universal Compatibility:** Works flawlessly with Honeywell Home Wi-Fi and RedLINK 8000 series thermostats.
- • **Compact & Discreet Design:** Slim, wall-mountable adapter fits neatly outside your furnace for a clean setup.
- • **Seamless Smart Thermostat Upgrade:** Power your Honeywell Wi-Fi thermostat even without a C-wire—no rewiring needed.

## Overview

The Honeywell Home C-Wire Adapter (Model THP9045A1098) delivers continuous 24V power to Honeywell Wi-Fi and RedLINK 8000 thermostats in homes lacking a common wire. Featuring easy push terminals and an adhesive mount, this compact, low-voltage electronic component ensures a hassle-free installation outside your furnace. Made in the USA, it’s the perfect solution to seamlessly upgrade your HVAC controls without costly rewiring.

## Description

Honeywell Home C-Wire Adapter for Honeywell home Wi-Fi Thermostats and RedLINK 8000 series thermostats

## Features

- For Use With Honeywell Home WiFi Thermostats, RedLINK 8000 series thermostats
- The C-Wire Power Adapter makes Honeywell Home smart thermostats compatible with most homes that don’t have a common wire..Product Type :Electronic Component. | Package Dimensions :10.0 " L X10.0 " W X10.0 " H.Country Of Origin :United States
- Quickly and easily power connected thermostats that require a c-wire.
- Use for Wi-Fi, 24v Honeywell Home thermostats when a common wire is needed but not present.
- Easy push terminals and an adhesive mount make installation quick and easy.
- Simple adhesive mount allows you to attach the adapter to the outside of your furnace.
- Product Type: Electronic Component. | Package Dimensions: 10.0 " L X10.0 " W X10.0 " H.
- Country Of Origin: United States
- For Use With Honeywell Home WiFi Thermostats, RedLINK 8000 series thermostats

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Honeywell |
| Model Name | THP9045A1098 |
| Product Dimensions | 1.75"D x 3.44"W x 5.63"H |
| Controller Type | Hand Control |
| Special Feature | Low Voltage |
| Color | White |
| Specific Uses For Product | Furnace |
| Temperature Control Type | Heating |
| Connectivity Technology | Wi-Fi |
| Included Components | Wire Saver C-Wire Adapter |
| Power Source | Electric |
| Item Weight | 0.12 Kilograms |
| Voltage | 24 Volts |
| Material | Metal, Plastic |
| Shape | Rectangular |
| Display Type | LCD |
| Control Method | Touch |
| Connectivity Protocol | Wi-Fi |
| Mounting Type | Wall Mount |
| Style | Simple |
| Backlight | Yes |
| UPC | 085267994828 |
| Global Trade Identification Number | 00085267994828 |
| Manufacturer | Resideo |
| Part Number | THP9045A1098 |
| Item Weight | 4.2 ounces |
| Item model number | THP9045A1098 |
| Item Package Quantity | 1 |
| Special Features | Low Voltage |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Honeywell
- **Model Name:** THP9045A1098
- **Product Dimensions:** 1.75"D x 3.44"W x 5.63"H
- **Controller Type:** Hand Control
- **Special Feature:** Low Voltage

## Images

![Honeywell Home C-Wire Adapter for Honeywell home Wi-Fi Thermostats and RedLINK 8000 series thermostats - Image 1](https://m.media-amazon.com/images/I/411PmyPSDxL.jpg)

## Questions & Answers

**Q: Is it compatible with 	 honeywell home t9 wifi smart...**
A: Most likely it is

**Q: My "bryant plus 80" furnace does not have "c" connector but it has one marked "com 24v". is it the same wire just marked differently?**
A: This should be the same terminal function as the C-terminal. -Joey

**Q: Amazon said i needed this, but i have 5 wires. g, y, w, rh, and rc. how do i install adaptor when it only wants 4 wires?**
A: It looks like your missing the C-wire, see direction below. 
Turn off power to the furnace and thermostat.
Wire the Y and G in the thermostat to the C and K terminals.
Wire the K on the thermostat to the K terminal on the wire saver.
Wire the R and C on the thermostat to the R and C terminals on the wire saver and equipment.
Wire the W from the thermostat to the W terminal on the HVAC equipment.
Wire the Y and G on the wire saver to the Y and G terminals on the HVAC equipment.
The RC wire will stay connected to the RC terminal on the system and thermostat. 
-Joey

**Q: I have a Honeywell programmable thermostat does that mean I already have a c-wire?**
A: Hi, not all our thermostats require a C wire, only the Wi-Fi models 9except for the Round that can work without a C wire). We recommend you verifying the wiring of your current thermostat and check if you have any extra wires that are not being used. We will be happy to help you finding the correct option to add a C wire at (800) 633-3991 or on social media. - Maria

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-25*