Smart Thermostat. Auto change from heat to cool. HELP SAVE ENERGY. See your energy use in the Monthly Energy Report, and help save even more with a schedule that adapts to your lifestyle, and by connecting with your utility efficiency program..EFFICIENCY AND REWARDS. Connect your Honeywell Home account with your utility to earn rewards each season for your energy efficiency.Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter.Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present. AUTO HOME AND AWAY MODE. Adjust your thermostat from anywhere with your mobile device, or let your home automatically react to your schedule with geofencing. MULTI-ROOM FOCUS. Add Smart Room Sensors to focus the temperature on multiple rooms for comfort where it matters to you. (Sensors sold separately) SMART RESPONSE AND ALERTS. Intelligently learns your home’s heating and cooling patterns to deliver the right temperature at the right time, and sends you filter and temperature alerts. COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire Required. SMARTER, SIMPLER SETUP. Everything you need comes in the box, including a power adapter so that the T9 works in most homes. The T9 intuitively identifies your home’s heating and cooling type, making it easy to do it yourself. EFFICIENCY AND REWARDS. Connect your Honeywell Home account with your utility to earn rewards each season for your energy efficiency. Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter. Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.
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7 reviews for Honeywell Home T9 WIFI Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist
Good Thermostat for the money.
I just had a new AC system installed into my condo and had been using a nest 3rd gen thermostat for the last 7 years. The HVAC guys told me that I should consider switching my thermostat due to the amount of service calls they’ve had where the nest was the culprit. So I did some shopping and came across the Honeywell T9. I decided to pull the trigger and order it. So far I like it alot over the nest, seems to react to temperature changes more quicker than my nest.Things I like about the T9:- Can be paired with external sensors (purchased separately) that can be placed elsewhere in your home to have the thermostat use those for temperature readings versus relying solely on the main thermostat.- The T9 can monitor the main thermostat and sensors you select- it will then create a general average ambient temperature between the main thermostat and the other sensors for a master home temp to reach. Thing to note on this is – do not place the sensors in direct sunlight and also place them on interior walls so they are not falsely reading heat from sunlight or a cold draft from a vent or thinly insulated exterior wall. When you enable scheduling on the thermostat, you can schedule time frames for high and low temps and which sensors to monitor and what time to monitor.-The thermostat connects with Accuweather to tell you the weather forecast for the day / week you can see from the master thermostat or from the Resideo app.This is based on the zip code you enter during setup.-While you can have the thermostat turn the blower on for your air handler or run it randomly to help circulate air to cut down on energy consumption – it does not let you specify a time frame or a schedule for the fan itself. I miss that with the nest where I could tell the system to run the fan for X amount of minutes every hour. With the T9 you can either specify the fan to AUTO which tells the fan to turn on when a call for heat or AC is made or you can select CIRCULATE which will tell the fan to kick on I think for 30 mins every hour to help circulate air.- Geofencing in the resideo app is nice, it will bring up a map based on the address you provided during setup. You can manually create a geofence around your home, where the app will use the location services on your phone to see if you are within the geofence boundaries to use your home temps. You can then specify temp ranges under the schedule to use while you are away. When your phone passes the threshold of the geo fence you specified AND you have enabled scheduling on the thermostat, the T9 will then stop using your home temps and switch over to away temps that you set in your away schedule. You will also get a notification on your phone that you have left the Geo area and that Away temps will now be used.Some things to be aware of :- During setup you may get bombarded with some windows on the thermostat AND in the app and it is possible to miss setting the correct number of stages for hot and cold for your HVAC system- I had this happen where I inadvertently skipped over the Cooling stages- so even though I had wired up the AC to the thermostat- the T9 did not think I had an AC due to me skipping over it during setup due to being bombarded with popup windows. Its an easy fix though- from the Thermostat if you go under Advanced Settings, you can interface with the Heating and Cooling stages, all you need to do is make sure you have at least 1 stage added for both heating and cooling, or more depending on your specific system. You can add the missing stage under the settings which will add the missing mode for Heat or Cold, then you should be good.-With the Resideo app,note that your usage data takes a few days to display. When I first installed my T9 it took like 3 days worth of the system running to generate data, Honeywell really needs to improve this. With my nest, energy consumption for the day would be ready the very next morning. It would be nice to have a more real time view into this to adjust my thermostat accordingly so its not using too much energy.Overall I am happy with my purchase, paired with the new AC, i feel like im using close to 50% less energy than I was before.-
Works great with the app and supports remote sensors
If you have never used a thermostat with remote sensors, you really don’t know what you are missing. It is great being able to place sensors inside of rooms instead of having to hope that your hallway is the right temperature. That really only leaves two choices of thermostats, the Honeywell T9/T10 or Ecobee.We recently moved into a brand new house with two separate HVAC systems, one for the main level and basement, one for the top floor with the bedrooms. The builder pre-installed Honeywell T6 thermostats, which left a lot to be desired. They worked well with the Ring system that came with the house, but that control is limited to the mode and temperature. You either need to use the touchscreen on the thermostat or the app to make the most of it. Due to the way the T6 was installed in contractor mode, I could not get them to connect to the Resideo app. The T6 also does not support remote thermostats, which really is a game changer.There are a couple of differences with the T6 compared to T9. T6 has battery backup (I don’t really care as long as it doesn’t lose its programming). T6 connects to Z-Wave, which makes using it with a security system easier (plus Ring only supports two thermostats if they are connected to Z-Wave). Both connect to wifi and both should work with the Resideo app, but I could not get the T6 into the right mode to set it up. T9 has remote thermostats, T6 does not.I wanted more control so I decided to upgrade to the T9. The best part is that it was literally plug and play. I removed the T6 and plugged the T9 into the same wall adapter. I was able to immediately connect it to the Resideo app, which is really what I wanted. The Resideo app is actually not bad, it gives me full control over both thermostats.We have purchased additional remote sensors and have two for each thermostat, I really like being able to place them in bedrooms since we usually have our doors closed. I work from home and have one sensor in my office, one in our living room. I did find that occupancy detection doesn’t work as well as I had hoped because I use a space heater in hopes of saving money and that means the office is warmer than the rest of the house. In the summer and on weekends it works a lot better.With the Resideo app you can easily tweak the settings from anywhere and you can program each day individually. If days match it groups them, but they don’t have an easy way to remove customization for a day. That is nice because I try to go into the office one day a week. I wish I could program heating vs. cooling different for things like the fan because in the winter I want it set to circulate upstairs, in the summer I want the fan off on the top level during the day so I’m not moving the hot air around as much (those vents are in the ceiling), in the winter I want more air circulation.In my previous house we had installed an Ecobee 3, the first model with Apple HomeKit support (which we never used). The Honeywell T9 is competitive with the Ecobee in most of the features you will actually use, but that Ecobee had a couple of features the T9 does not. First, Ecobee supports accessories, for example, you could use it to control a whole house humidifier (I wanted one but never bought one). T9 doesn’t do that. Second, Ecobee can use occupancy to control whether your house is in home or away mode, which would be useful for our top level since nobody is in the bedrooms during the day. T9 uses geofencing, which has a lot of disadvantages in comparison (everybody needs it on your phone, cannot distinguish between home and on that level). Newer Ecobee models add even more sensors and even Alexa. Ecobee also lets you tweak how often the fan runs, Honeywell just has circulate, which runs on their schedule.Ecobee also looks more premium than Honeywell. The T9 is functional but not as modern of a design. Their sensors are large white blocks that really stand out when mounted on a wall. Considering all of the white Ring products I have, it kind of fits in, though.I probably would have chosen Ecobee over T9 if the price was similar, but Ecobee is nearly double the price and their remote sensors are more expensive as well.
Easy to use, has the features I need.
This was recommended by my HVAC guy when we were planning on replacing my furnace and A/C (new furnace, and a heat pump as the primary heating). The touch screen is very fast and easy to use. You can pair these with the Residio app on your phone, and that makes setting up schedules and making changes on the fly really easy. This replace of course a landscape-shaped unit so there’s a bare spot on the wall now, so at some point I’ll get a bigger base plate to cover that up. Connecting to wifi was easy: you pair the thermostat to the app on your phone, and it takes it from there. I love the ability to see what the temps in my house are when I’m away from home. My only complaint would be the brightness of the screen – the default lowest brightness is REALLY bright at night – I’ve thought more than once somebody left a light on. You can schedule the display to sleep in a time range though, so that helps make up for that. As an added bonus, this unit was eligible for an Advanced Thermostat rebate through my electric company when installed with a new furnace/ac/heat pump.
Flawless smart thermostats
I own both the T9 and the t10 Honeywell smart thermostats. I just installed the T9 and I’ve been using the T10 for 2 years and they operate flawlessly. The newer T9 allows you to change the background color (12 choices) which I find makes a very attractive thermostat on the wall. The older T10 does not have this capability although the newer models might. However, there’s been no issues of connectivity. I suggest you use the 2.4 GHz router Wi-Fi signal versus the 5.0 because it can carry farther distances within your house. Using the 5.0 can cause connectivity dropping issues if your router is some distance from the thermostat.
En general funcionan bien, y la app ayuda a su manejo a distancia, pero después de un año tienen fallas, y es imposible encontrar datos de servicio para repara o aplicar garantía. y ya me empezó a fallar el segundo termostato
J’ai été plus d’un mois sans être capable d’enregistrer mon thermostat dans l’application Honeywell Home App.J’ai contacté le soutien technique d’honeywell home par téléphone et par messagerie instantané. Réponse rapide et très courtois et ils ne niaisent pas avec les détails d’usage. Cependant ils n’ont pas été en mesure de trouver le problème et il m’ont suggérer d’effectuer un retour/échange.Dans une ultime tentative de dernier recours, j’ai effectuer une 4e fois une remise a l’état d’usine et cette fois j’ai choisi l’anglais comme language de configuration. Je ne sais pas si c’est vraiment ce qui a fait fonctionné le couplage avec mon application, mais cette fois ça fonctionné donc si vous avez le même problème que moi essayez ça.
Eric –
Good Thermostat for the money.
I just had a new AC system installed into my condo and had been using a nest 3rd gen thermostat for the last 7 years. The HVAC guys told me that I should consider switching my thermostat due to the amount of service calls they’ve had where the nest was the culprit. So I did some shopping and came across the Honeywell T9. I decided to pull the trigger and order it. So far I like it alot over the nest, seems to react to temperature changes more quicker than my nest.Things I like about the T9:- Can be paired with external sensors (purchased separately) that can be placed elsewhere in your home to have the thermostat use those for temperature readings versus relying solely on the main thermostat.- The T9 can monitor the main thermostat and sensors you select- it will then create a general average ambient temperature between the main thermostat and the other sensors for a master home temp to reach. Thing to note on this is – do not place the sensors in direct sunlight and also place them on interior walls so they are not falsely reading heat from sunlight or a cold draft from a vent or thinly insulated exterior wall. When you enable scheduling on the thermostat, you can schedule time frames for high and low temps and which sensors to monitor and what time to monitor.-The thermostat connects with Accuweather to tell you the weather forecast for the day / week you can see from the master thermostat or from the Resideo app.This is based on the zip code you enter during setup.-While you can have the thermostat turn the blower on for your air handler or run it randomly to help circulate air to cut down on energy consumption – it does not let you specify a time frame or a schedule for the fan itself. I miss that with the nest where I could tell the system to run the fan for X amount of minutes every hour. With the T9 you can either specify the fan to AUTO which tells the fan to turn on when a call for heat or AC is made or you can select CIRCULATE which will tell the fan to kick on I think for 30 mins every hour to help circulate air.- Geofencing in the resideo app is nice, it will bring up a map based on the address you provided during setup. You can manually create a geofence around your home, where the app will use the location services on your phone to see if you are within the geofence boundaries to use your home temps. You can then specify temp ranges under the schedule to use while you are away. When your phone passes the threshold of the geo fence you specified AND you have enabled scheduling on the thermostat, the T9 will then stop using your home temps and switch over to away temps that you set in your away schedule. You will also get a notification on your phone that you have left the Geo area and that Away temps will now be used.Some things to be aware of :- During setup you may get bombarded with some windows on the thermostat AND in the app and it is possible to miss setting the correct number of stages for hot and cold for your HVAC system- I had this happen where I inadvertently skipped over the Cooling stages- so even though I had wired up the AC to the thermostat- the T9 did not think I had an AC due to me skipping over it during setup due to being bombarded with popup windows. Its an easy fix though- from the Thermostat if you go under Advanced Settings, you can interface with the Heating and Cooling stages, all you need to do is make sure you have at least 1 stage added for both heating and cooling, or more depending on your specific system. You can add the missing stage under the settings which will add the missing mode for Heat or Cold, then you should be good.-With the Resideo app,note that your usage data takes a few days to display. When I first installed my T9 it took like 3 days worth of the system running to generate data, Honeywell really needs to improve this. With my nest, energy consumption for the day would be ready the very next morning. It would be nice to have a more real time view into this to adjust my thermostat accordingly so its not using too much energy.Overall I am happy with my purchase, paired with the new AC, i feel like im using close to 50% less energy than I was before.-
Myron Uecker –
Works great with the app and supports remote sensors
If you have never used a thermostat with remote sensors, you really don’t know what you are missing. It is great being able to place sensors inside of rooms instead of having to hope that your hallway is the right temperature. That really only leaves two choices of thermostats, the Honeywell T9/T10 or Ecobee.We recently moved into a brand new house with two separate HVAC systems, one for the main level and basement, one for the top floor with the bedrooms. The builder pre-installed Honeywell T6 thermostats, which left a lot to be desired. They worked well with the Ring system that came with the house, but that control is limited to the mode and temperature. You either need to use the touchscreen on the thermostat or the app to make the most of it. Due to the way the T6 was installed in contractor mode, I could not get them to connect to the Resideo app. The T6 also does not support remote thermostats, which really is a game changer.There are a couple of differences with the T6 compared to T9. T6 has battery backup (I don’t really care as long as it doesn’t lose its programming). T6 connects to Z-Wave, which makes using it with a security system easier (plus Ring only supports two thermostats if they are connected to Z-Wave). Both connect to wifi and both should work with the Resideo app, but I could not get the T6 into the right mode to set it up. T9 has remote thermostats, T6 does not.I wanted more control so I decided to upgrade to the T9. The best part is that it was literally plug and play. I removed the T6 and plugged the T9 into the same wall adapter. I was able to immediately connect it to the Resideo app, which is really what I wanted. The Resideo app is actually not bad, it gives me full control over both thermostats.We have purchased additional remote sensors and have two for each thermostat, I really like being able to place them in bedrooms since we usually have our doors closed. I work from home and have one sensor in my office, one in our living room. I did find that occupancy detection doesn’t work as well as I had hoped because I use a space heater in hopes of saving money and that means the office is warmer than the rest of the house. In the summer and on weekends it works a lot better.With the Resideo app you can easily tweak the settings from anywhere and you can program each day individually. If days match it groups them, but they don’t have an easy way to remove customization for a day. That is nice because I try to go into the office one day a week. I wish I could program heating vs. cooling different for things like the fan because in the winter I want it set to circulate upstairs, in the summer I want the fan off on the top level during the day so I’m not moving the hot air around as much (those vents are in the ceiling), in the winter I want more air circulation.In my previous house we had installed an Ecobee 3, the first model with Apple HomeKit support (which we never used). The Honeywell T9 is competitive with the Ecobee in most of the features you will actually use, but that Ecobee had a couple of features the T9 does not. First, Ecobee supports accessories, for example, you could use it to control a whole house humidifier (I wanted one but never bought one). T9 doesn’t do that. Second, Ecobee can use occupancy to control whether your house is in home or away mode, which would be useful for our top level since nobody is in the bedrooms during the day. T9 uses geofencing, which has a lot of disadvantages in comparison (everybody needs it on your phone, cannot distinguish between home and on that level). Newer Ecobee models add even more sensors and even Alexa. Ecobee also lets you tweak how often the fan runs, Honeywell just has circulate, which runs on their schedule.Ecobee also looks more premium than Honeywell. The T9 is functional but not as modern of a design. Their sensors are large white blocks that really stand out when mounted on a wall. Considering all of the white Ring products I have, it kind of fits in, though.I probably would have chosen Ecobee over T9 if the price was similar, but Ecobee is nearly double the price and their remote sensors are more expensive as well.
Michael Strong –
Easy to use, has the features I need.
This was recommended by my HVAC guy when we were planning on replacing my furnace and A/C (new furnace, and a heat pump as the primary heating). The touch screen is very fast and easy to use. You can pair these with the Residio app on your phone, and that makes setting up schedules and making changes on the fly really easy. This replace of course a landscape-shaped unit so there’s a bare spot on the wall now, so at some point I’ll get a bigger base plate to cover that up. Connecting to wifi was easy: you pair the thermostat to the app on your phone, and it takes it from there. I love the ability to see what the temps in my house are when I’m away from home. My only complaint would be the brightness of the screen – the default lowest brightness is REALLY bright at night – I’ve thought more than once somebody left a light on. You can schedule the display to sleep in a time range though, so that helps make up for that. As an added bonus, this unit was eligible for an Advanced Thermostat rebate through my electric company when installed with a new furnace/ac/heat pump.
Cap’n Beefheart –
Flawless smart thermostats
I own both the T9 and the t10 Honeywell smart thermostats. I just installed the T9 and I’ve been using the T10 for 2 years and they operate flawlessly. The newer T9 allows you to change the background color (12 choices) which I find makes a very attractive thermostat on the wall. The older T10 does not have this capability although the newer models might. However, there’s been no issues of connectivity. I suggest you use the 2.4 GHz router Wi-Fi signal versus the 5.0 because it can carry farther distances within your house. Using the 5.0 can cause connectivity dropping issues if your router is some distance from the thermostat.
Alexander K. –
This thermostat is not able to control the fan speed if the AC unit. Two options only: either off or full speed. Very inconvenient.
Octavio R –
En general funcionan bien, y la app ayuda a su manejo a distancia, pero después de un año tienen fallas, y es imposible encontrar datos de servicio para repara o aplicar garantía. y ya me empezó a fallar el segundo termostato
André –
J’ai été plus d’un mois sans être capable d’enregistrer mon thermostat dans l’application Honeywell Home App.J’ai contacté le soutien technique d’honeywell home par téléphone et par messagerie instantané. Réponse rapide et très courtois et ils ne niaisent pas avec les détails d’usage. Cependant ils n’ont pas été en mesure de trouver le problème et il m’ont suggérer d’effectuer un retour/échange.Dans une ultime tentative de dernier recours, j’ai effectuer une 4e fois une remise a l’état d’usine et cette fois j’ai choisi l’anglais comme language de configuration. Je ne sais pas si c’est vraiment ce qui a fait fonctionné le couplage avec mon application, mais cette fois ça fonctionné donc si vous avez le même problème que moi essayez ça.