Honeywell Home T9 Smart Thermostat Review

If you’re like me, then you’re constantly adjusting the temperature in your home. I turn on the air conditioning, it gets too cold, and then I turn it off, only to turn it back on a few minutes later when it gets too hot. Plus, I’m always leaving the A/C on blast all night long, or sometimes even when I leave the house. This wouldn’t be a problem if utility bills weren’t a thing, but unfortunately, they are. Is there any solution out there for a person like me?

The answer is, blessedly, yes. Smart thermostats make it easy for you to control your home’s temperature whether you’re cozy in bed or already hard at work in the office. In this review, I’m taking a look at the Honeywell Home T9 Smart Thermostat. Now, previously I’ve reviewed the Honeywell Lyric C2, a security camera from the same company, so I’m curious to see how the smart thermostat compares. In this review, I’m discussing the Honeywell Home T9 in terms of its design, features, installation process, and of course, the Honeywell Home app. Is it the right thermostat for your smart home? Read on to find out.

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Honeywell Home T9 Smart Thermostat
Honeywell Home T9 Smart Thermostat
Honeywell Home T9 Smart Thermostat

Whether you're in the Amazon, Google, or Microsoft smart home ecosystems, the Honeywell Home T9 Smart Thermostat can work in your smart home. 

Honeywell Home T9 Design

Honeywell Home T9
Honeywell Home T9. Photo provided by Honeywell.

The Honeywell Home T9 looks like your typical digital thermostat, a white rectangle with rounded edges and the temperature in blue. However, it shouldn’t draw the eye too much at only five inches heigh-wise. Now, before you read on, make sure you have a c-wire in your home, which will connect your Honeywell Home T9 to power. You can check compatibility on the Honeywell website if you’re not sure. In addition, the T9 will be hardwired into your home and will connected to the Honeywell Home app via Wi-Fi. Just make sure you have a 24 volt system before you buy!

Remember when I said that this baby will bring down your utility bills? That was not a lie. In fact, the Honeywell Home T9 is ENERGY STAR-certified, meaning that the Environmental Protection Agency has deemed it energy efficient. But how exactly can it save you money? Let’s find out in the next section.

Honeywell Home T9 Features

Aside from the Honeywell Home app, there’s a bunch of convenient ways to control your Honeywell Home T9. You can set up schedules for your thermostat, if you are home at the same times everyday (which let’s be honest, most of us are).

Smart Thermostat Schedules

You can also hook up your phone’s GPS with your thermostat to make sure it isn’t wasting energy when you’re away, a feature called geofencing. Finally, you’ll be able to control your Honeywell Home T9 using your voice alone, so long as you have Amazon Alexa, Google Assistant, or Microsoft Cortana.

Honeywell Home T9 Smart Platform Integrations
Honeywell Home T9 Smart Platform Integrations. Photo provided by Honeywell.

And for those in the Apple ecosystem, don’t fret— Honeywell says an integration is on the way.

Smart Thermostat Geofencing

Now, aside from these smart home platforms, you can also sync your Honeywell Home T9 up with other connected devices from Samsung SmartThings, or anything that works with IFTTT. For example, I like to hook my ADT Samsung SmartThings Starter Kit up with my Honeywell Home T9 to make sure that my home is a nice temperature when my security system is disarmed, as that means that I’m home. With so many ways to control your Honeywell Home T9, it makes it much less likely that you’ll accidentally leave it on, saving you much-needed dough.

Now, temperature isn’t the only thing that the Honeywell Home T9 can detect. It can also sense:

  • Humidity: Humidity can greatly affect how warm a room feels, so that’s something that’s important to take into account when you’re talking temperature.
  • Proximity: If someone passes by the Honeywell Home T9, it’ll detect motion and adjust accordingly, making the room a comfortable temperature now that it knows someone has entered.
  • Occupancy: Now, you can be home without moving— in fact, when I’m home, I’m usually not moving. But that’s okay because the Honeywell Home T9 can measure infrared body heat, humans’ unique body heat signature. That’s right, this smart thermostat can tell if you’re home and awake, home and asleep, or not home at all.

Installing the Honeywell Home T9

Installing the Honeywell Home T9
Installing the Honeywell Home T9. Photo provided by Honeywell.

Like I said, before you buy the Honeywell Home T9, make sure you have a c-wire and check your home’s compatibility on the Honeywell website.

The Honeywell Home App

Remote Control with the Honeywell Home App.
Remote Control with the Honeywell Home App. Photo provided by Honeywell.

The Honeywell Home app is where you’ll control and monitor your Honeywell Home T9 and set up smart platform integrations, schedules and geofencing. The app has a decent 3.3 rating from the Google Play store and an awesome 4.5 rating from the Apple store, making it a better choice for iPhone users. Reading through the reviews on the Google Play store, most of the recent ones were negative, saying they had issues with connection and geofencing.

Get Best Offer
Honeywell Home T9 Smart Thermostat
Honeywell Home T9 Smart Thermostat
Honeywell Home T9 Smart Thermostat

Whether you're in the Amazon, Google, or Microsoft smart home ecosystems, the Honeywell Home T9 Smart Thermostat can work in your smart home. 

Recap of the Honeywell Home T9

Overall, I’m happy with the features and functionality of the Honeywell Home T9, but at about $200, it’s a little over the industry average of around $160. Therefore, I think this thermostat would be good for some people more than others.

Get the Honeywell Home T9 if you’d like…

  • Integrations with Alexa, Google Assistant, Microsoft Cortana, etc: No matter which smart home you’re in, the Honeywell Home T9 works with most of the most popular voice assistants, plus IFTTT and Samsung SmartThings.
  • Compatibility with most 24VAC systems: The Honeywell Home T9 will be hardwired and works with the majority of 24VAC systems.
  • Humidity, proximity, and occupancy sensing: Not only can your thermostat detect the temperature involving humidity, but it will also use less power if you’re home, sleeping, or not home by measuring body heat.

But avoid it if the following are priorities…

  • Affordability: The Honeywell Home T9 is about $40 more than the industry average.
  • Apple HomeKit integration: The Honeywell Home T9 doesn’t currently work with Siri, although the company claims that that integration is coming soon.
  • Compatibility with electric or millivolt systems: You’ll need a 24VAC system to use the Honeywell Home T9.

To explore some other options, check out my list of the best smart thermostats of 2019.

Gabe Turner

Gabe Turner

Gabe Turner is an attorney and journalist with a passion for home tech and secure, efficient living. Since graduating from NYU Law, he has maintained a paradoxical existence of trying to live life adventurously while remaining staunchly risk-averse. He is torn by the dual desires of wanting to only be in Brooklyn writing about housing policy and smart home tech and aspiring to visit his friends scattered across the globe. Gabe believes that stable, safe communities are the cornerstone to a vibrant and healthy society, and it is this passion that brought him to contribute to Security Baron.

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