--- product_id: 27042208 title: "Honeywell Home RTH221B1039 RTH221B Programmable Thermostat, White" brand: "honeywell home" price: "AED 171" currency: AED in_stock: true url: https://www.desertcart.ae/products/27042208-honeywell-home-rth221b1039-rth221b-programmable-thermostat-white store_origin: AE region: United Arab Emirates --- # 1-week programmable schedule Low battery reminder ±1°F precise temp control Honeywell Home RTH221B1039 RTH221B Programmable Thermostat, White **Brand:** honeywell home **Price:** AED 171 **Availability:** ✅ In Stock ## Summary > 🌡️ Take control of your comfort—program once, relax all week! ## Quick Answers - **What is this?** Honeywell Home RTH221B1039 RTH221B Programmable Thermostat, White by honeywell home - **How much does it cost?** AED 171 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/27042208-honeywell-home-rth221b1039-rth221b-programmable-thermostat-white) ## 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 - • **Smart Power Management:** Never get caught off guard with built-in low battery alerts and memory retention during power outages—comfort stays uninterrupted. - • **Universal Compatibility:** Works seamlessly with heating, cooling, and heat pump systems (excluding electric baseboard and multi-stage)—upgrade your home’s HVAC with confidence. - • **DIY Friendly Installation:** Quick, no-fuss setup with clear instructions and included mounting hardware—get your thermostat running in under 30 minutes. - • **Precision Comfort Control:** Maintain your ideal indoor climate with temperature accuracy within ±1°F, ensuring consistent coziness without energy waste. - • **Effortless Weekly Scheduling:** Set one simple program for all 7 days with 4 daily temperature periods—wake, leave, return, sleep—perfect for your busy lifestyle. ## Overview The Honeywell Home RTH221B1039 is a sleek, white programmable thermostat designed for simple, one-week scheduling with four daily temperature settings. It offers precise temperature control within ±1°F, easy DIY installation, and smart features like low battery reminders and memory retention during outages. Compatible with most heating and cooling systems, it’s an energy-efficient upgrade that keeps your home comfortable and your utility bills in check. ## Description Product Description This easy-to-operate 1-Week Programmable Thermostat helps make your home comfortable exactly when you want it. Programmable for one week, it lets you customize your schedule with four options – ‘wake’, ‘leave’, ‘return’, and ‘sleep’ – for precise temperature control and added comfort. Simple step-by-step instructions included with the thermostat make DIY installation easy. From the Manufacturer A Honeywell programmable thermostat can save you significant money off your energy bill. You set it up to adjust the temperature when you are away or asleep---times when you don’t necessarily need to heat or cool your home to optimum comfort---and your heating and cooling equipment runs less. This one-piece thermostat has one easy program for all days of the week (4 periods - wake, leave, return, sleep). Simple and effective use and performance. ## Features - ONE WEEK PROGRAMMING: Set one identical program for the entire week with four program periods per day including wake, leave, arrive and sleep. - PRECISE TEMPERATURE CONTROL: Precise temperature control of plus/- 1 degree Fahrenheit - DIGITAL DISPLAY: Easy-to-read digital display with an intuitive interface for one-touch access to setpoint temperature - EASY INSTALLATION: Easy to install yourself and basic operation keeps programming simple - REMINDERS: Built-in battery change reminders (2 AAA batteries are required for operation) - SET POINT RETENTION: Set point is retained in memory in the event of a power outage - DISPLAY OPTIONS: Fahrenheit or Celsius; 12 or 24 hour clock. Note: This thermostat is not backlit. - OVERRIDE OPTIONS: Permanent and temporary override capability - COMPATIBLE WITH: Heating, cooling and heat pumps without auxiliary heat options - Does NOT work with electric baseboard heat (120-240 V), heat pumps with backup, or multi-stage heating/cooling. For indoor use only. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B018A3DHJY | | Additional Features | Clock Display, Low Battery Indicator, Low Voltage, Programmable | | Backlight | Yes | | Best Sellers Rank | #40,523 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #57 in Home Programmable Thermostats | | Brand Name | Honeywell Home | | Color | White | | Connectivity Technology | Non-connected | | Control Method | Touch | | Control Type | Button Control | | Controller Type | Hand Control | | Customer Reviews | 4.3 4.3 out of 5 stars (7,784) | | Display Type | Digital | | Finish Types | White | | Global Trade Identification Number | 00085267348553 | | Included Components | Mounting Hardware, Thermostat, User Manual | | Item Dimensions D x W x H | 1"D x 4.75"W x 3.5"H | | Item Type Name | Programmable Thermostat | | Manufacturer | Honeywell | | Manufacturer Part Number | RTH221B | | Manufacturer Warranty Description | 1 year limited. | | Material Type | Plastic | | Model Name | RTH221B | | Model Number | RTH221B1039 | | Mounting Type | Wall Mount | | Number of Batteries | 2 AA batteries required. | | Power Source | Battery Powered | | Product Style | Contemporary | | Shape | Curved | | Smart Home Compatibility | Not Smart Home Compatible | | Specific Uses For Product | Air Conditioner, Furnace | | Specification Met | energy | | Temperature Control Type | Heating and Cooling | | UPC | 085267348553 | | Voltage | 24 Volts | ## Product Details - **Brand:** Honeywell Home - **Controller Type:** Hand Control - **Model Name:** RTH221B - **Product Dimensions:** 1"D x 4.75"W x 3.5"H - **Special Feature:** Clock Display, Low Battery Indicator, Low Voltage, Programmable ## Images ![Honeywell Home RTH221B1039 RTH221B Programmable Thermostat, White - Image 1](https://m.media-amazon.com/images/I/61czZlHOxkL.jpg) ![Honeywell Home RTH221B1039 RTH221B Programmable Thermostat, White - Image 2](https://m.media-amazon.com/images/I/61EWhMzTYQL.jpg) ![Honeywell Home RTH221B1039 RTH221B Programmable Thermostat, White - Image 3](https://m.media-amazon.com/images/I/51lBvaXOEpL.jpg) ![Honeywell Home RTH221B1039 RTH221B Programmable Thermostat, White - Image 4](https://m.media-amazon.com/images/I/61vHS9CYO7S.jpg) ![Honeywell Home RTH221B1039 RTH221B Programmable Thermostat, White - Image 5](https://m.media-amazon.com/images/I/71FIONNs15L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: How did everyone else get the red wire in if it is so tightly screwed in? I can’t seem to get it to budge, even with the correct size screwdriver.** A: I used a small flathead that fit in the slot. Then used pliers on the shaft of the screwdriver. I used the pliers to turn the screwdriver and I was able to loosen the screw **Q: Where can I find an owners manual?** A: Jeezus people, if the person is asking isn’t it obvious he does not have it in the box?!! The least helpful answers ever. I inherited the thermostat from a previous owner and in search for a manual, too. Guess what— no box!! **Q: How do I put it on. I cannot program it** A: Hi, thank you for reaching out with this. We would like to gather some more information on your specific system so that we can provide assistance on how to program. Please reach out to our support team on Facebook/Twitter with a private message. We look forward to hearing from you soon. -Jim **Q: does this thermostat use a battery for power? and how long should the battery last if it needs one** A: Hi there, this thermostat requires 2 AAA batteries, battery life depends on the usage, we recommend replacing batteries at least every year. - Maria ## Frequently Bought Together - Honeywell Home RTH221B1039 1-Week Programmable Thermostat - 24V 40VA Control Transformer， Primary 120, 208, 240V Secondary 24V Isolation Transformers，24V Transformer with Foot Mount for HVAC Furnace Multi Tap --- ## 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.ae/products/27042208-honeywell-home-rth221b1039-rth221b-programmable-thermostat-white](https://www.desertcart.ae/products/27042208-honeywell-home-rth221b1039-rth221b-programmable-thermostat-white) --- *Product available on Desertcart United Arab Emirates* *Store origin: AE* *Last updated: 2026-07-09*