Trane is known for all the excellent HVAC systems and devices it has developed over many years. Perhaps all your HVAC-related devices are Trane products as well. But you’ve now encountered problems with your system’s thermostat and have to replace it. The obvious choice would be to replace it with a Trane thermostat, but somebody told you that the one HVAC device that is not made by Trane themselves, is the HVAC thermostat. Now you are wondering who makes Trane thermostats and whether the Trane thermostats are exactly the same as the thermostats of the company providing them to Trane.

Honeywell manufactures Trane thermostats, which are then packaged and branded with the Trane brand. Despite the fact that Trane thermostats are constructed to Trane’s requirements, they often employ the same procedures as comparable thermostats of the manufacturing company.

In this article, I’ll go through whether or not there are differences between Trane and Honeywell thermostats. I’ll also share what I’ve discovered regarding thermostat compatibility.

Does Honeywell make Trane thermostats?

According to an arrangement between Trane and Honeywell, Trane thermostats are made by Honeywell and then packaged and branded with the Trane name. Usually, the Trane thermostats are using the same methods as comparable Honeywell thermostats.

But it is important to remember that Honeywell builds the thermostats for Trane according to Trane’s specifications. Although some Honeywell and Trane models are comparable, they are not the same.

Honeywell versus Trane thermostats

To illustrate how Honeywell and Trane thermostats differ and how each brand has its own strong points, I’ve looked at two comparable thermostats – the Trane ComfortLink II XL850 thermostat and the Honeywell Home T9 thermostat.

Remember, I’m not making any recommendations regarding which thermostat is better than the other. I’m only listing a few of the pros of each thermostat to show that each brand offers specific features.   You can get more information regarding the Trane ComfortLink II XL850 and the Honeywell Home T9 thermostat online.    

Trane ComfortLink II XL850 thermostat: Pros

Handles most HVAC applications

This Trane thermostat is designed to handle most, if not all, HVAC applications. It can work with single-stage gas furnaces, but also with systems that offer communication possibilities with multi-stage heating and cooling components. As Trane is the manufacturer and supplier of literary all the HVAC devices you need, there is a great possibility that all, or most of your HVAC devices are Trane devices.

If that is the case, a Trane thermostat would be the best because Trane thermostats work best with Trane furnaces, heat pumps, and refrigerators.

Offers smart connectivity and control

The XL850 has a touchscreen with a smart home hub which is accessible via smartphone, tablet, or laptop. The XL850’s built-in bridge for Z-wave devices, allows you to monitor and control more than 200 devices in your home remotely. Thus, the hub makes it possible with a network of controls and sensors to continuously optimize the temperature and humidity in your home.

Sends real-time data to the dealer to be monitored

You can set this Wi-Fi-enabled thermostat to send real-time data regarding your system’s performance to your HVAC dealer. If you’ve activated Trane Diagnostics, your HVAC provider can monitor your air conditioner, furnace, and the entire HVAC system remotely. This monitoring ensures optimal performance and prevents minor problems from turning into major repairs.

Other features and pros of the XL850 thermostat

  • Wi-Fi or Ethernet connectivity
  • 4.3″ Diagonal color touchscreen
  • Programmable for up to 4 schedules a day – 7 days a week

The Honeywell Home T9 Thermostat: Pros

Allows remote adjusting and scheduling

With its Auto Home and Away mode you can adjust your Honeywell T9 thermostat at any time from anywhere with your mobile device. Or you can activate geofencing which will let the thermostat automatically react to your schedules.

Offers multi-room focus in your home

With Honeywell’s multi-room focus feature, you can add Smart Room Sensors in your home to focus the temperature in multiple rooms. With this feature, every room can have its own temperature and humidity if needed.

Handles most HVAC applications and devices

The Honeywell Home T9 thermostat handles most HVAC applications and devices and is compatible with gas, oil, or electric systems. It can also handle, hot water and steam, and heat pump with electric backup.

 Other features and pros of the Honeywell Home T9 Thermostat

  • Color – White
  • Dimensions (LxWxH) – 3.7 x 4.92 x 0.94 inches
  • Style/type – Wi-Fi thermostat
  • Weight – 0.45 pounds
  • Power source – Electric

Honeywell Thermostat compatibility with Trane

Generally speaking, Honeywell thermostats should be compatible with Trane HVAC devices, including extra Trane thermostats in your system. Although the two brands’ thermostats are not copies of each other, most of the methods of how the thermostats work are the same.

 A quick “test” to determine whether the Honeywell thermostat will be compatible with your Trane system and devices, is to remove your current thermostat from its base and see whether the wiring on your new Honeywell thermostat matches. (Remember to cut the power to your thermostat before you remove it from the wall.)

However, the safest way to go is to take the model numbers of all your devices to your Honeywell dealer who will be able to tell you which Honeywell model will be compatible.   

What to remember

In conclusion, the main thing to remember is that although Honeywell makes Trane thermostats, the Trane thermostat is not just another Honeywell thermostat model. Honeywell manufactures the Trane thermostats according to the specifications provided by Trane.


Q1: Are Trane thermostats regarded as expensive?

A1: Yes, Trane thermostats are considered one of the more expensive brands on the market. But according to users’ reviews, it is worth the investment,

Q2: Does a Trane thermostat have a long lifespan?

A2: Trane thermostats are very durable and, generally, their lifespan is well past the average 15 years of most HVAC brands.

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