--- product_id: 6251331 title: "Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat,Large,White,Large" brand: "honeywell home" price: "1518014₫" currency: VND in_stock: true reviews_count: 13 category: "Honeywell Home" url: https://www.desertcart.vn/products/6251331-honeywell-home-ct87k1004-the-round-heat-only-manual-thermostat-large store_origin: VN region: Vietnam --- # ±1°F precise control Easy DIY install Classic round design Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat,Large,White,Large **Brand:** honeywell home **Price:** 1518014₫ **Availability:** ✅ In Stock ## Summary > 🔥 Dial into comfort with precision and style! ## Quick Answers - **What is this?** Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat,Large,White,Large by honeywell home - **How much does it cost?** 1518014₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/6251331-honeywell-home-ct87k1004-the-round-heat-only-manual-thermostat-large) ## Best For - honeywell home enthusiasts ## Why This Product - Trusted honeywell home brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Hassle-Free Setup:** Simple twist dial and straightforward wiring mean you’re up and running in minutes, no pro required. - • **Mercury-Free & Eco-Friendly:** Safe for your home and the planet, with no hazardous materials—comfort without compromise. - • **Clean Aesthetic, Clean Walls:** Decorative cover ring cleverly hides wall imperfections for a polished, professional look. - • **Precision at Your Fingertips:** Achieve exact comfort with temperature control accurate to ±1 degree Fahrenheit—no guesswork needed. - • **Timeless Design, Modern Appeal:** Iconic round dial blends seamlessly with any décor, making your space effortlessly stylish. ## Overview The Honeywell Home CT87K1004 Round Heat Only Manual Thermostat combines classic design with modern precision, offering ±1°F temperature accuracy in a mercury-free, easy-to-install package. Trusted by over 70 million homes, its iconic round dial and decorative cover ring ensure both functionality and aesthetic appeal for any environment. ## Description Product Description With its familiar circular design and simple twist action, The Round® Non-Programmable Thermostat makes setting your ideal temperature quick and easy. Plus, the popular thermostat design fits perfectly into your home. From the Manufacturer The Round Manual thermostat by Honeywell Home is the world's most popular thermostat - installed in over 70 million homes and buildings. This CT87K heat only model provides precise accurate performance with the ease of use that you've grown accustomed to - simply turn the dial to desired temperature and let the thermostat take over. Review: Easier than expected - Had old 70 yr old type thermostate with mercury switch replaced it with this. It only had 2 wires a white and purple. According to instructions the white wire connected to r terminal and the purple to the w terminal. Been testing it out And seems to control the gas home furnace correct. To my surprize it went better and easier than expected. Review: ok - ok ## Features - Classic round styling; familiar design looks great in any environment - Decorative cover ring hides wall marks - Precise temperature control of plus/-1 degree F - Easy to install and use - Mercury Free ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000EANORW | | Additional Features | Fan Control | | Backlight | No | | Best Sellers Rank | #30,068 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 in Home Nonprogrammable Thermostats | | Brand | Honeywell Home | | Brand Name | Honeywell Home | | Color | White | | Control Type | Dial Control | | Controller Type | Ring | | Customer Reviews | 4.1 out of 5 stars 2,928 Reviews | | Display Type | Manual | | Global Trade Identification Number | 00085267263672 | | Included Components | Honeywell CT87K The RoundHeat Only Manual Thermostat | | Item Dimensions D x W x H | 2.88"D x 3.62"W x 3.62"H | | Item Type Name | Round Heat Only Manual Thermostat, White, 1-Pack | | Item Weight | 0.2 Pounds | | Manufacturer | Honeywell Home | | Manufacturer Part Number | YCT87K1003/U | | Manufacturer Warranty Description | 1 year limited warranty. | | Model Name | CT87K1004 | | Model Number | CT87K1004 | | Mounting Type | Round Non-Programmable Thermostat Owner's Guide Model: CT8775A,C French | | Power Source | Battery Powered | | Product Dimensions | 2.88"D x 3.62"W x 3.62"H | | Product Style | Thermostat Round | | Shape | Round | | Smart Home Compatibility | Not Smart Home Compatible | | Special Feature | Fan Control | | Specific Uses For Product | Air Conditioner | | Temperature Control Type | Manual | | UPC | 085267263672 | | Unit Count | 1.0 Count | | Voltage | 120 Volts | ## Product Details - **Brand:** Honeywell Home - **Controller Type:** Ring - **Model Name:** CT87K1004 - **Product Dimensions:** 2.88"D x 3.62"W x 3.62"H - **Special Feature:** Fan Control ## Images ![Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat,Large,White,Large - Image 1](https://m.media-amazon.com/images/I/81aURIXb-3L.jpg) ![Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat,Large,White,Large - Image 2](https://m.media-amazon.com/images/I/51qRkAzekhL.jpg) ![Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat,Large,White,Large - Image 3](https://m.media-amazon.com/images/I/61KJjcbXCjL.jpg) ![Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat,Large,White,Large - Image 4](https://m.media-amazon.com/images/I/61M2wRCyC5L.jpg) ![Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat,Large,White,Large - Image 5](https://m.media-amazon.com/images/I/71RfiRG+cAL.jpg) ## Available Options This product comes in different **Style** options. ## 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)" ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easier than expected *by W***L on March 6, 2026* Had old 70 yr old type thermostate with mercury switch replaced it with this. It only had 2 wires a white and purple. According to instructions the white wire connected to r terminal and the purple to the w terminal. Been testing it out And seems to control the gas home furnace correct. To my surprize it went better and easier than expected. ### ⭐⭐⭐⭐⭐ ok *by J***O on May 15, 2026* ok ### ⭐⭐⭐⭐⭐ Easy heating control unit *by J***R on March 19, 2026* Easy to use and easy to install. ## 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.vn/products/6251331-honeywell-home-ct87k1004-the-round-heat-only-manual-thermostat-large](https://www.desertcart.vn/products/6251331-honeywell-home-ct87k1004-the-round-heat-only-manual-thermostat-large) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-06*