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Honeywell T4 vs T6 – Comparison of Thermostat

    Honeywell TH4110U2005/U T4 Pro Program Mable Thermostat


    4.6 Rating
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    Honeywell TH6210U2001/U T6 Pro Programmable Thermostat


    4.5 Rating
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    Honeywell T4 vs T6

    Honeywell T4 vs T6 : If you’re looking for a Pro Programmable Thermostat, you have two choices: Honeywell T4 or T6. Which is better? By comparing the Honeywell T4 and the Honeywell T6, our goal is to determine which model is superior.

    Honeywell T4 vs T6  – Quick Comparison Summary

    • The HoneyWell T4 is 6.2 x 5.2 x 2.3 inches and weighs 13.76 ounces, while the HoneyWell T4 Dimension is 1.14 x 4.07 x 4.07 inches and weighs 12.96 ounces.

    • On, the Honeywell T4 is extremely popular.

    • Honeywell T6 is more expensive than Honeywell T4, which is less expensive.

    • The HoneyWell T6 has two heat and cool systems, whereas the HoneyWell T4 only has one.

    • T6 has a touch screen, whereas T4 has an LCD screen.

    • HoneyWell T6 works with Alexa, Google Assistant, IFTTT, and other voice command devices, but HoneyWell T4 does not.

    • HoneyWell T4 does not have an Energy Star certification, but HoneyWell T6 does.

    Honeywell TH4110U2005/U T4 Pro Program Mable Thermostat

    Honeywell TH6210U2001/U T6 Pro Programmable Thermostat

    Honeywell T4

    Honeywell T6




    Power Supply

    Battery Assisted

    Battery Assisted

    Energy Star Certified




    1 Heat/1 Cool Heat Pump, 1 Heat/1 Cool Conventional

    2 Heat / 1 Cool Heat Pump Or 1 Heat / 1 Cool Conventional


    6.2 x 5.2 x 2.3 inches

    1.14 x 4.07 x 4.07 inches


    13.76 Ounces

    12.96 Ounces


    2 AA batteries required.

    2 AA batteries required.

    Honeywell Home App 





    5 Year

    5 Year

    FAQS :

    Is this a two-wire or three-wire circuit?

    Our house, which was built in 1982, depends on how old the wiring in your property is. On the thermostat, I had two wires, one red and one white, labelled R and W. It's simple to set up and use.

    Is it possible to link this thermostat to a smartphone and operate it from there?

    Answer: A "Wi-Fi" thermostat is what you're looking for. One of them isn't this.

    Is the 6.2" horizontal or vertical?

    My answer is that mine is about 4" across. I'm not using the 'decorative' backing that can be utilised for extra coverage because it's not 6.2" anywhere.

    How do you set it up?

    It comes with instructions, to be sure. Otherwise, I'd look up the directions online - they're not difficult, but there's too much to put here.

    Is it possible for this to automatically switch from heat to air conditioning dependent on the temperature in the room?

    Here are the requirements: Standard Efficient Gas Forced Air High Efficacy Gas Forced Air Oil Forced Air Electric Forced Air Hot Water Fan Coil Geothermal Heat Pump Air to Air Heat Includes Thermostat UWP mounting system Small ornamental cover plate, screws and anchors Installation Guide User Guide 2 AA Batteries Features •Standard Efficient Gas Forced Air, High Efficacy Gas Forced Air, Oil Forced Air, Electric Forced Air, Hot Water Fan Coil, Geothermal Heat Pump, Air to Air Heat •Push-button programmable •Optional dual fuel •Flexible scheduling 20 to 30 Vac Electrical Ratings •Stages: Heat Pumps (up to 2 heat/1 cool); Conventional Systems (up to 1 heat/1 cool). •Honeywell UWP Mounting System electrical connections •Operating Humidity Range (percent RH): 5 to 90% RH, non-condensing •Supply Voltage: 20 to 30 Vac •Switch Positions (System): HEAT-OFF-COOL-AUTO-EM. •Shipping and Storage Temperature Range (F): - 20 F to 120 F •Accuracy (F): 5 F •Operating Temperature Range (F): 37 F to 102 F •Interstage Differential Temperature (F): 1 to 1.5 F •Differential Temperature (F): 1 F •Ambient Temperature Range (F): 32 F to 120 F •Switch Type: Relay •LEDs: LED Back Light •Programmability: 7 day, 5-1-1 day, 5-2 day, or Non-programmable •Power Method: Battery or Hardwired •Temperature Control Mode Selections: Ambient Air Temperature •Changeover: Auto or Manual Setting •Display Size 5.44 sq. in. While the items Climatedoctors sell are designed to be installed by anyone, the Climatedoctors team believes that all heating and cooling work should be done by a licenced expert.

    Is there an automatic switch from heat to cool?

    Yes, however the default value of 0 ("Manual") in the ISU menu must be changed to 1 ("Automatic"), and then "Auto" can be selected as one of the operating modes using the "Mode" button.

    Is this compatible with a 24 volt system?

    Yes, it's a low-voltage (24 VAC) thermostat that works with the vast majority of forced-air heating and cooling systems. Description: Honeywell T4 vs T6

    About this item – Honeywell TH4110U2005/U T4 Pro Program Mable Thermostat, White

    • For more than a century, people have relied on our knowledge, which has included making air travel safer and assisting in the landing of a man on the moon. You can now relax with a smart thermostat that adjusts to your schedule, saves energy, and makes your home smarter. We collaborated with some of our most talented engineers to design it. So you can control your home’s comforts no matter where you are.

    • Whatever the outside temperature is, the T6 figures out how to get there. Its sophisticated comfort control keeps the temperature where you want it when you want it. As a result, whatever the weather, your home will always be warm and inviting.

    • The T6 Smart Thermostat integrates with Apple HomeKit, Amazon Echo, Google Home, and IFTTT to manage your home’s comforts and keep them connected in the present and future.
      Controlled from anywhere using your smartphone or tablet, The Honeywell Home app takes care of everything at home by detecting whether you’re at home or away using your smartphone’s location. When you’re not at home, you may save electricity and ensure that the temperature is just right when you return.

    • Life is unpredictable and unpredictable, as we all know. As a result, you have the option of using 7-Day Scheduling or making changes remotely if your plans change.

    About this item – Honeywell TH6210U2001/U T6 Pro Programmable Thermostat, 2 Heat / 1 Cool Heat Pump Or 1 Heat / 1 Cool Conventional Adventure

    • The T4 Pro Programmable Thermostat from Resideo is part of the Honeywell Home T Series of thermostats that allow you to manage your home’s heating and cooling in a simple, easy-to-use gadget. The T4 has push-button control and seven-day scheduling, with the option to create a different schedule on weekends, to simplify everything from installation to the user experience. The T4’s adaptive intelligent recovery helps you feel more at ease faster by understanding how long it takes your system to achieve a target temperature and turning it on sooner.

    • With on-screen menus that display installation stages and a universal mounting method, the T4 Pro Programmable Thermostat is simple to install. Simple push button controls make it even easier to use, letting you change the temperature or set up a heating and cooling schedule.

    • It takes effort to keep track of your daily schedule, but with the T4 Pro Programmable Thermostat, you can set and forget about your home’s temperature. Whether you’re awake or asleep, whether at home or away, programme a seven-day plan or create alternative timetables on the weekend so you can always be comfortable.