---
product_id: 315850002
title: "Honeywell Home RTH221B1039 RTH221B Programmable RTH221B 1"
brand: "honeywell home"
price: "17.45 OMR"
currency: OMR
in_stock: true
reviews_count: 5
category: "Honeywell Home"
url: https://www.desertcart.com.om/products/315850002-honeywell-home-rth221b1039-rth221b-programmable-rth221b-1
store_origin: OM
region: Oman
---

# 1-week programmable schedule battery change reminders ±1°F precise temp control Honeywell Home RTH221B1039 RTH221B Programmable RTH221B 1

**Brand:** honeywell home
**Price:** 17.45 OMR
**Availability:** ✅ In Stock

## Summary

> 🌟 Take control of your comfort—smart simplicity meets precision!

## Quick Answers

- **What is this?** Honeywell Home RTH221B1039 RTH221B Programmable RTH221B 1 by honeywell home
- **How much does it cost?** 17.45 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/315850002-honeywell-home-rth221b1039-rth221b-programmable-rth221b-1)

## 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

- • **DIY Friendly:** Simple, tool-free installation that fits seamlessly into your smart home setup
- • **Precision Comfort:** Maintain your ideal temperature within ±1°F accuracy—no more guessing
- • **Power Outage Proof:** Memory retention keeps your settings safe even during blackouts
- • **Set It & Forget It:** One-week programmable with 4 daily periods for ultimate comfort control
- • **User-Centric Design:** Intuitive digital display with easy toggle between °F/°C and 12/24-hour clock

## Overview

The Honeywell Home RTH221B1039 is a sleek, wall-mounted programmable thermostat designed for easy DIY installation. It offers one-week scheduling with four customizable daily periods, precise temperature control within ±1°F, and a clear digital display. Battery change reminders and memory retention during power outages ensure hassle-free operation. Compatible with most heating and cooling systems (excluding electric baseboard and multi-stage units), it’s the perfect blend of simplicity and reliable performance for modern homes.

## 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.

Review: Set it and forget it - It was suggested we replace one of our thermometers to be compatible with our boiler. This one does the job. It’s lightweight, slim and does what it’s supposes to do. No problems whatsoever. Very easy to install.
Review: ヽ(◉◡◔)ﾉ - Here the deal: We had one of those Commercial grade Honeywell touchscreen thermostats that usually do a great job, but we noticed the temperature in the house never seemed to keep, and would hear the unit, whether heater or ac, kick on quite a bit. We decided to do some research, and with a deal from our energy provider, we ended up with one of those $249 Nest thermostats. I was STOKED, like a fat kid with some apple pie. We got the Nest in, and I went to work. Like a Dad in bad joke bookstore. I've replaced many thermostats over the years and the Nest was a piece of cake. BUT, we discovered it had a malfunction, so after talking with tech support, it was getting replaced. SOOOO, back to the Honeywell. I went out to the garage and grabbed the oldie off the shelf, and as I was walking in, my Dollar Store flip flop got caught on the door jam. It popped the rubber thing out of the foam bottom and made me nearly fall over forwards onto the hard tiled floor. There i was, Rambo faced, screaming in slo motion, feeling the pain of my big toe hit the metal, when all of a sudden the Honeywell touch screen goes flying out of my hands, and flips, and turns, and swings, and screams, to the floor. BAM!!! Cracked screen. Out of Commission. No Goodie No More. Mad me. I dropped the ball, but it wasn't the ball man, it was my $150 Honeywell touch screen I had plans to put back onto the wall when we sold the house years from now. So there I was, at a cross roads, like Willow, but without Mad Mardigan there to take the baby. I broke my working thermostat, and was left with TWO broken thermostats. It was humid, then cold, then hot, then cold, then humid, the windows were open, they were closed, they were damned like Conan the Barbarian was. I decided to order THIS thermostat from desertcart. I got in two days, and the hookup was easy. Easy yo. I'm talking so easy, I thought about taking it for a drink and a meal. The thermostat works like a champ! However I now rec'd the replacement Nest thrmostat and this one is taken down, boxed up, and awaits its new homeowner in severla years whoever and whenever that may be. Pros: 1. Easy to install (C wire is Common and NOT used) 2. Basic use makes ti fun for all ages! 3. Basic programming is available, but nothing that is 3 pointer at the buzzer wow 4. Small, and easy to use Cons: 1. None. It works great and is easy to install

## 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 +/- 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.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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B018A3DHJY |
| Additional Features | Clock Display, Low Battery Indicator, Low Voltage, Programmable |
| Backlight | Yes |
| Brand | Honeywell Home |
| Brand Name | Honeywell Home |
| Color | White |
| Colour | White |
| Connectivity Technology | Non-connected |
| Control Method | Touch |
| Control Type | Button Control |
| Controller Type | Hand Control |
| Controller type | Hand Control |
| Customer Reviews | 4.3 out of 5 stars 11,177 Reviews |
| Display Type | LCD or LED |
| Finish Types | White |
| Global Trade Identification Number | 00085267348553 |
| Included Components | Mounting bracket, power cord |
| Item Dimensions D x W x H | 2.5D x 12.1W x 8.9H centimeters |
| Item Type Name | Programmable Thermostat |
| Manufacturer | Honeywell Home |
| Manufacturer Warranty Description | 1 year limited. |
| Material Type | Plastic |
| Model Name | RTH221B |
| Model Number | RTH221B1039 |
| Model name | RTH221B |
| Mounting Type | Wall Mount |
| Number of Batteries | 2 AA batteries required. |
| Power Source | Corded Electric |
| Product Style | Thermostat |
| Product dimensions | 2.5D x 12.1W x 8.9H centimeters |
| Shape | Rectangular |
| Special features | Clock Display, Low Battery Indicator, Low Voltage , Programmable |
| Specific Uses For Product | Air Conditioner, Furnace |
| Specification Met | energy |
| Temperature Control Type | Manual with touch controls |
| UPC | 085267348553 |
| Voltage | 24 Volts |

## Product Details

- **Brand:** Honeywell
- **Model name:** RTH221B
- **Product dimensions:** 2.5D x 12.1W x 8.9H centimeters
- **Controller type:** Hand Control
- **Special features:** Low Battery Indicator, Clock Display, Low Voltage, Programmable

## Images

![Honeywell Home RTH221B1039 RTH221B Programmable RTH221B 1 - Image 1](https://m.media-amazon.com/images/I/41maQ-RIHfL.jpg)
![Honeywell Home RTH221B1039 RTH221B Programmable RTH221B 1 - Image 2](https://m.media-amazon.com/images/I/51lBvaXOEpL.jpg)
![Honeywell Home RTH221B1039 RTH221B Programmable RTH221B 1 - Image 3](https://m.media-amazon.com/images/I/61EWhMzTYQL.jpg)
![Honeywell Home RTH221B1039 RTH221B Programmable RTH221B 1 - Image 4](https://m.media-amazon.com/images/I/61Oq-R9InZL.jpg)
![Honeywell Home RTH221B1039 RTH221B Programmable RTH221B 1 - Image 5](https://m.media-amazon.com/images/I/61czZlHOxkL.jpg)

## 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Set it and forget it
*by P***Y on 26 October 2019*

It was suggested we replace one of our thermometers to be compatible with our boiler. This one does the job. It’s lightweight, slim and does what it’s supposes to do. No problems whatsoever. Very easy to install.

### ⭐⭐⭐⭐⭐ ヽ(◉◡◔)ﾉ
*by S***I on 22 December 2014*

Here the deal: We had one of those Commercial grade Honeywell touchscreen thermostats that usually do a great job, but we noticed the temperature in the house never seemed to keep, and would hear the unit, whether heater or ac, kick on quite a bit. We decided to do some research, and with a deal from our energy provider, we ended up with one of those $249 Nest thermostats. I was STOKED, like a fat kid with some apple pie. We got the Nest in, and I went to work. Like a Dad in bad joke bookstore. I've replaced many thermostats over the years and the Nest was a piece of cake. BUT, we discovered it had a malfunction, so after talking with tech support, it was getting replaced. SOOOO, back to the Honeywell. I went out to the garage and grabbed the oldie off the shelf, and as I was walking in, my Dollar Store flip flop got caught on the door jam. It popped the rubber thing out of the foam bottom and made me nearly fall over forwards onto the hard tiled floor. There i was, Rambo faced, screaming in slo motion, feeling the pain of my big toe hit the metal, when all of a sudden the Honeywell touch screen goes flying out of my hands, and flips, and turns, and swings, and screams, to the floor. BAM!!! Cracked screen. Out of Commission. No Goodie No More. Mad me. I dropped the ball, but it wasn't the ball man, it was my $150 Honeywell touch screen I had plans to put back onto the wall when we sold the house years from now. So there I was, at a cross roads, like Willow, but without Mad Mardigan there to take the baby. I broke my working thermostat, and was left with TWO broken thermostats. It was humid, then cold, then hot, then cold, then humid, the windows were open, they were closed, they were damned like Conan the Barbarian was. I decided to order THIS thermostat from Amazon. I got in two days, and the hookup was easy. Easy yo. I'm talking so easy, I thought about taking it for a drink and a meal. The thermostat works like a champ! However I now rec'd the replacement Nest thrmostat and this one is taken down, boxed up, and awaits its new homeowner in severla years whoever and whenever that may be. Pros: 1. Easy to install (C wire is Common and NOT used) 2. Basic use makes ti fun for all ages! 3. Basic programming is available, but nothing that is 3 pointer at the buzzer wow 4. Small, and easy to use Cons: 1. None. It works great and is easy to install

### ⭐⭐⭐⭐⭐ Simple, Reliable Thermostat – Great Value!
*by Y***J on 25 December 2024*

The Honeywell Home RTH221B1039 is a solid, no-frills thermostat that does exactly what it’s supposed to do. It’s easy to install, user-friendly, and provides accurate temperature control. The display is clear, and the buttons are intuitive to use. Perfect for anyone looking for a budget-friendly option that gets the job done without unnecessary features. Highly recommend for basic heating and cooling needs!

## 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

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-04*