HONEYWELL Programable Backlit Thermostat Disp Heat Cooling 221B-1039 RTH221B-1012

( Brand: Honeywell ), ( Manufacturer Part Number: 221B1039 ), ( Model: 221B-1039 ), ( Part Type: Thermostat ), ( Thermostat Programmable Days: 1 Week ), ( Power Source: Battery 24 Volt Electrical Source ), ( Color: White ), ( Items Included: No Batteries, No Instructions, Just Thermostat ), ( Material: Plastic ), ( Wire Configuration: 2-wire ), ( Battery Size: Aaa ), ( Thermostat Shape: Rectangular ), ( Mounting: Wall-mounted ), ( Sensor Technology: Temperature ), ( Voltage Type: Low Voltage ), ( Control Style: Push Button With Digital Display ), ( Display Size: 1 5/8 X 7/8 ), ( Voltage: 24 V ), ( Features: Adjustable Thermostat, Digital Display, Low Battery Indicator ), ( Country Of Origin: United States ), ( Programmability: Programmable )

Review HONEYWELL Day Programable Backlit Thermostat Disp Heat And Cooling

The Honeywell RTH221B-1012/RTH221B1039 Programmable Backlit Thermostat (Disp Heat Cooling) is a user-friendly and energy-efficient solution for managing your home's heating and cooling system. This thermostat is designed with a sleek, modern appearance and features a brilliant backlit display that ensures easy reading, even in low-light conditions.

This programmable thermostat offers 7-day flexible scheduling, allowing you to customize temperature settings for each day of the week. With up to four time periods per day, you can create a comfortable environment while saving energy and reducing utility bills. This thermostat also includes an optional "vacation mode" for extended absences.

The Honeywell RTH221B-1012/RTH221B1039 thermostat supports both heating and cooling systems and is compatible with a wide range of HVAC systems, including gas, oil, electric, and hydronic. It can handle up to two stages of heating and cooling, ensuring efficient temperature control.

Additionally, this thermostat includes advanced features such as an automatic changeover between heating and cooling modes, a filter change reminder, and a humidity control option. The large, easy-to-use buttons make it simple to adjust settings, while the quiet, touch-sensitive keypad minimizes noise and ensures a discreet appearance.

The Honeywell RTH221B-1012/RTH221B1039 thermostat is designed with a durable, high-quality construction, ensuring reliable operation and long-lasting performance. Its sleek, modern design complements any home decor, while its intuitive features make it a favorite among homeowners looking for a convenient and efficient way to manage their heating and cooling systems.

In summary, the Honeywell RTH221B-1012/RTH221B1039 Programmable Backlit Thermostat (Disp Heat Cooling) is a versatile, energy-efficient, and easy-to-use solution for managing your home's heating and cooling system. With its brilliant backlit display, 7-day flexible scheduling, advanced features, and sleek design, this thermostat is a must-have for any homeowner looking to save energy and create a comfortable living environment.

Honeywell RTH221B-1012 Programmable Backlit Thermostat: A Detailed Analysis

The Honeywell RTH221B-1012, model number RTH221B1039, is a programmable backlit thermostat offering both heating and cooling capabilities. This device is designed to provide homeowners with energy efficiency, convenience, and comfort. In this analysis, we will discuss the pros and cons of investing in this thermostat, followed by an Recommendation.

1. Programmable: The RTH221B-1012 allows users to set up to six different temperature settings for each day of the week, ensuring optimal comfort and energy savings.

2. Backlit Display: The thermostat features a backlit display, which is easy to read even in low-light conditions, making it more convenient to use.

3. Energy Savings: The programmable feature of this thermostat helps users save energy by automatically adjusting the temperature according to their schedule.

4. Compatibility: This thermostat is compatible with both 208-250V heating systems and 24V cooling systems, allowing it to work with a wide range of HVAC systems.

1. Complex Setup: Some users have reported finding the setup process for this thermostat to be more complex than expected, which may deter some individuals from utilizing all of its features.

2. Limited Connectivity: Unlike some newer smart thermostats, the RTH221B-1012 does not offer Wi-Fi connectivity, which means users cannot control the thermostat remotely using a smartphone app.

3. Manual Filter Reminder: The thermostat relies on users to manually reset the filter reminder when the filter needs to be changed, which can lead to forgetting to do so and potentially impacting the HVAC system's performance.

The Honeywell RTH221B-1012 Programmable Backlit Thermostat is a reliable and energy-efficient option for homeowners looking to enhance their heating and cooling system's capabilities. Its programmable feature, backlit display, and compatibility with various systems make it a strong contender for those seeking comfort and convenience. However, its lack of Wi-Fi connectivity and more complex setup process may deter some users. Ultimately, the decision to invest in this thermostat depends on a homeowner's personal preferences, comfort needs, and willingness to learn how to effectively use its features.

If you are looking for a programmable thermostat with a backlit display and the ability to save energy through temperature settings, the Honeywell RTH221B-1012 is a solid choice. However, if you require remote access or a simpler setup process, you may want to consider a Wi-Fi-enabled smart thermostat instead. Ultimately, consult your HVAC professional for their recommendation based on your specific heating and cooling system and personal preferences.

Details:

And resell those items on. They may be a bit dusty but in Operating Condition. TeXes pxzj28591 TeXes-11 TeXes 74 txzj115 1 Week Programable. Honeywell RTH221B-1012 7 Day Programable Backlit Thermostat Disp Heat Cooling.

Thermostat kicked in and out. As you can see the Thermostat liters up and responds. We put batteries in each one of these Thermostats. A Great Buy on Used Thermostats.

Temperature setting up down to make sure that. And Good Luck buying. Honeywell: 1 Week Programable: With Backlit Thermostat Display: model: R TH221B-1012. The Thermostat comes with a Back Plate for Mounting.

A Large Office Complex with Newer Thermostats. Cooling Contractor That Replaced and updated. And the display lite up and we changed.

This Honeywell Thermostat is From A Heating. They are not in the original packaging and No instructions. E-mail us with any questions.

part #: 221b1039 prices

• $15.00-$49.00

specifications thermoditto:

• brand: Honeywell
• mpn: 221b1039
• model: 221b-1039
• part type: Thermostat
• thermostat programmable days: 1 Week
• power source: Battery 24 Volt Electrical Source
• color: White
• items included: No Batteries, No Instructions, Just Thermostat
• material: Plastic
• wire configuration: 2-wire
• battery size: Aaa
• thermostat shape: Rectangular
• mounting: Wall-mounted
• sensor technology: Temperature
• voltage type: Low Voltage
• control style: Push Button With Digital Display
• display size: 1 5/8 X 7/8
• voltage: 24 V
• features: Adjustable Thermostat, Digital Display, Low Battery Indicator
• country of origin: United States
• programmability: Programmable

payments thermoditto:

• credit card: Visa
• other
• wallet: Paypal

offer thermoditto:

• started: April 14, 2026
• options: Ship-to-home
• best offers: True
• availability: In Stock
• quantity: 2
• sold: 0

shipping thermoditto:

• class: Economy
• transit: 2-6 Days
• cost: $0.00
• service: Economy
• type: Fixed

seller thermoditto:

• # reviews: 7530
• rating: 100.0%
• city: Mountain Lake, Minnesota

returns thermoditto:

• method: Money back
• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

general thermoditto:

• condition: Used
• Heating, Cooling Air > Thermostats > Programmable Thermostats

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