Overview
The Amazon Smart Thermostat controls compatible 24V HVAC systems through the Alexa app. It also works with Alexa and Ring for connected temperature control.
The thermostat is designed to manage heating and cooling set points through home, away, and sleep temperature preferences. Also, it supports manual adjustments and on-the-go temperature changes through the Alexa app. Voice control requires a compatible Alexa-enabled device.
Key takeaways
- It supports most 24V conventional forced air, heat pump, and radiant boiler systems.
- It does not support 110–240V systems such as electric baseboard heat.
- Constant power requires a C-wire or a compatible power adapter kit.
- It uses 2.4 GHz Wi-Fi with 802.11 b/g/n support.
- The Alexa app supports schedules, vacation mode, emergency heat mode, humidity sensing, and energy dashboard monitoring.
- The thermostat has no speaker or microphone, so voice control requires another Alexa-enabled device.
What the product is designed to do
The thermostat adjusts heating and cooling set points through app, touch, and compatible voice controls. Also, Alexa can switch between preferred home, away, and sleep temperatures while retaining manual adjustment options.
Thermostat hunches can adjust the temperature when Alexa determines nobody is home or everyone is asleep. In addition, comfort zones can use temperature readings or presence detection from select Echo devices or an Amazon Smart Air Quality Monitor.
The Alexa app supports Choose Cleaner Energy within the device settings. This feature can adjust the set point to minimize usage when electricity is less clean. However, users can manually override those adjustments.
Materials, dimensions, and technical details
The thermostat uses Honeywell Home Thermostat Technology and combines HVAC experience with Alexa controls. It carries ENERGY STAR certification and ECOLOGO Gold certification.
| Detail | Specification |
|---|---|
| Dimensions | 3.56 x 3.56 x 0.84 inches (90.4 x 90.4 x 21.4 mm) |
| Weight | 3.86 ounces (109.5 grams) |
| Model | S6ED3R |
| Wi-Fi | 2.4 GHz, 802.11 b/g/n |
| Standby power | 0.89 watts |
| Touch controls | Temperature Up, Temperature Down, and Select/Mode |
| Box contents | Thermostat, installation tool, wall plate, cosmetic plate, and quick start guide |
The product and accessories use 36% post-consumer recycled plastics, excluding the installation tool. Also, they use 0% bioplastics. Device packaging uses 93% wood fiber-based materials from responsibly managed forests or recycled sources.
Installation and placement notes
The guided thermostat installation uses step-by-step instructions within the Alexa app. Installation may require a power drill, a 3/16-inch drill bit, and a level.
Before removing an existing thermostat, document each wire and terminal connection. For example, use wiring labels, take a smartphone photo, or draw a terminal diagram.
Compatibility depends on the HVAC system and its power wiring. Also, constant power requires a C-wire or a power adapter kit. Check the existing thermostat for a wire connected to the C-terminal before starting installation.
Performance characteristics described
The thermostat supports schedules with up to seven configurable time periods for each day of the week. Also, the Alexa app includes emergency heat mode, vacation mode, energy-saving incentives, indoor humidity sensing, and energy dashboard monitoring.
ENERGY STAR estimates certified thermostats save an average of $50 on yearly energy bills. The thermostat also supports automatic home, away, and sleep temperature changes through Alexa.
On-the-go temperature control works through the Alexa app. In addition, users can control the thermostat through the Ring app. Its three touch buttons support direct temperature and mode adjustments without app or voice commands.
Review patterns buyers commonly mention
Buyers commonly call installation and setup easy. Also, they commonly find Alexa app management straightforward and phone-based temperature control convenient.
Functionality and performance receive mixed feedback. Some buyers report reliable operation, while others report interruptions during the night. Alexa compatibility also receives mixed feedback, including comments connected to single-account control.
Some buyers find the temperature control options less than ideal. However, the thermostat supports manual adjustments, app controls, touch controls, schedules, and compatible voice commands.
Pros
- Guided steps in the Alexa app support a DIY installation process.
- App controls support remote temperature changes from anywhere.
- Schedules support up to seven configurable periods each day.
- Three touch buttons support direct temperature and mode control.
- The thermostat works with Alexa and Ring.
Cons
- Constant power requires a C-wire or a power adapter kit.
- It does not support 5 GHz or ad-hoc Wi-Fi networks.
- Voice control requires a separate compatible Alexa-enabled device.
- The thermostat uses one Alexa account for household control.
- Buyer feedback on functionality and temperature controls remains mixed.
FAQ
Which HVAC systems does the thermostat support?
It supports most 24V systems, including conventional forced air, heat pump, and radiant boiler systems. It does not support 110–240V systems such as electric baseboard heat.
Does the thermostat require a C-wire?
Constant power requires a C-wire or a compatible power adapter kit. Check for a wire connected to the existing thermostat’s C-terminal.
Which Wi-Fi connection does it use?
The thermostat uses 2.4 GHz Wi-Fi with 802.11 b/g/n support. It does not support 5 GHz or ad-hoc peer-to-peer networks.
Can it work without an Alexa speaker?
The thermostat has no speaker or microphone. App and touch controls remain part of its control options, while voice commands require a compatible Alexa-enabled device.
What controls are built into the thermostat?
Three touch buttons handle Temperature Up, Temperature Down, and Select/Mode. The Alexa app temperature controls add schedules, remote adjustments, and other app-based settings.
What comes in the box?
The box includes the thermostat, installation tool, wall plate, cosmetic plate, and quick start guide.