---
product_id: 297701226
title: "Honeywell CT87K The RoundHeat Only Manual Thermostat"
brand: "honeywell"
price: "A$181"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/297701226-honeywell-ct87k-the-roundheat-only-manual-thermostat
store_origin: AU
region: Australia
---

# Honeywell CT87K The RoundHeat Only Manual Thermostat

**Brand:** honeywell
**Price:** A$181
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Honeywell CT87K The RoundHeat Only Manual Thermostat by honeywell
- **How much does it cost?** A$181 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/297701226-honeywell-ct87k-the-roundheat-only-manual-thermostat)

## Best For

- honeywell enthusiasts

## Why This Product

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

## Description

Honeywell CT87K The RoundHeat Only Manual Thermostat

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Honeywell |
| Controller Type | manual |
| Item Weight | 91 g |
| Voltage | 120 Volts |
| Shape | Round |
| Control Type | Button Control |
| Mounting Type | Wall Mount |
| Style | Digital,Round |
| Backlight | Yes |
| UPC | 085267263672 |
| Global Trade Identification Number | 00085267263672 |
| Country of Origin | USA |
| Item model number | CT87K1004 |
| ASIN | B000EANORW |

## Product Details

- **Brand:** Honeywell
- **Controller Type:** manual
- **Item Weight:** 0.2 Pounds
- **Voltage:** 120 Volts
- **Shape:** Round
- **Control Type:** Button Control
- **Mounting Type:** Wall Mount
- **Style:** Digital,Round
- **Backlight:** Yes
- **UPC:** 085267263672

## Images

![Honeywell CT87K The RoundHeat Only Manual Thermostat - Image 1](https://m.media-amazon.com/images/I/81aURIXb-3L.jpg)
![Honeywell CT87K The RoundHeat Only Manual Thermostat - Image 2](https://m.media-amazon.com/images/I/51qRkAzekhL.jpg)
![Honeywell CT87K The RoundHeat Only Manual Thermostat - Image 3](https://m.media-amazon.com/images/I/61KJjcbXCjL.jpg)
![Honeywell CT87K The RoundHeat Only Manual Thermostat - Image 4](https://m.media-amazon.com/images/I/61M2wRCyC5L.jpg)
![Honeywell CT87K The RoundHeat Only Manual Thermostat - Image 5](https://m.media-amazon.com/images/I/71RfiRG+cAL.jpg)

## Questions & Answers

**Q: Is this a 2 wire hook up?**
A: This is for 2 wire 24VAC systems.
It is NOT for millivolt systems, which are also 2 wire but work off typically 750 millivolt DC generated by a thermocouple constantly heated by the pilot light. The user manual states it is for 24 VAC systems. Honetwell customer support confirms it does not work with millivolt systems.

**Q: Is there a battery in ct87k**
A: What battery does it take?  CR2050?

**Q: How do you turn it off during the summer time?**
A: 1) Turn dial to  its CCW-min.  Unless you a/c your place to ~45º F, that's pretty-much OFF.  (And you'd be a 'Climate criminal'?) via a/c silliness.
2) Just pull the unit out of its socket ... the way you installed it originally; it's just two wires behind.  The thermostat merely Shorts-these for 'ON'.
HTH.

**Q: Will this thermostat work okay for replacing my King thermostat--line voltage double pole?**
A: search for "line voltage thermostat" in tools and home improvement, there are several to choose from. For example "Honeywell Manual 4 Wire Premium Baseboard/Line Volt Thermostat(YCT410B1000/U)"

## Frequently Bought Together

- Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat
- 18/6 500Ft. NATIONAL Wire&Cable Thermostat Doorbell HVAC Heating Control Professional Cable Wire - Made in USA - 100% Solid Copper Conductors, CL2 ETL Listed, Low Voltage Applications Use
- Syston 18/4 Thermostat Doorbell HVAC Heating Control Cable Wire, 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated UL/ETL Listed, UV Resistant RoHS for Indoor/Outdoor Low Voltage Applications Use

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.au/products/297701226-honeywell-ct87k-the-roundheat-only-manual-thermostat](https://www.desertcart.com.au/products/297701226-honeywell-ct87k-the-roundheat-only-manual-thermostat)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-27*