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Emerson

Emerson Sensi Wi-Fi Enabled Smart Thermostat, White

#052-9858-2

Quebec residents: For information on maintenance and repair click here.

Emerson

Emerson

Emerson Sensi Wi-Fi Enabled Smart Thermostat, White

$129.99

Product Details

  • Sensi Wi-Fi Enabled Smart Thermostat provides total control of your home's comfort from the convenience of your smartphone

  • Compatible with Android and iOS devices via the free Sensi app

  • Energy saving features save you approx. 23% on your energy usage so you can save money without compromising your comfort

  • LCD display shows your current, set point and desired temperature

  • Auto change determines if your home needs to be cooled or heated to maintain preferred temperatures

  • Compatible with Apple HomeKit, Amazon Alexa, Google Assistant, SmartThings and Wink home automation network

  • Works with most home HVAC systems - a c-wire is required for heat-only, cool-only and heat pump systems without aux

  • Does not work with electric baseboard and some other systems

Part Number ST55C
Colour White
Shape Rectangle
Display Type LCD
User Interface Buttons, Remote Control
Number of Batteries Required 2
Power Source Hardwired
Smart System Compatibility Amazon Alexa, Android App, Apple Homekit, Google Assistant, iOS App, SmartThings
Programmable Smart Thermostat
Automatic/Manual Reset Automatic
Operation Modes Cooling, Heating
Stage Multi-Stage Heating
Accessories List Batteries, Mounting Hardware
Advanced Features 24V Compatible, Battery Backup, Illuminated, Tamper Proof
Maximum Operating Temperature (°C) 40.00 °C
Product Use(s) Central Air Conditioning, Cooling, Furnace, Gas Fireplace, Heating, Heat Pump
Daily Program Periods 8
Operating Environment Indoor
Weekly Program Periods 7 Day
Certifications Energy Star
Assembled Height (in) 3.75 in
Assembled Length (in) 1.0 in
Assembled Width (in) 5.88 in
Assembled Weight (lb) 0.44 lb
Accessories List Batteries, Mounting Hardware
Advanced Features 24V Compatible, Battery Backup, Illuminated, Tamper Proof
Assembled Height (cm) 9.53 cm
Assembled Height (ft) 0.31 ft
Assembled Height (in) 3.75 in
Assembled Length (cm) 2.54 cm
Assembled Length (ft) 0.08 ft
Assembled Length (in) 1.0 in
Assembled Weight (kg) 0.20 kg
Assembled Weight (lb) 0.44 lb
Assembled Width (cm) 14.94 cm
Assembled Width (in) 5.88 in
Assembled Width (mm) 149.40 mm
Automatic/Manual Reset Automatic
Colour White
Daily Program Periods 8
Display Type LCD
Maximum Operating Temperature (°C) 40.00 °C
Maximum Operating Temperature (°F) 104.00 °F
Number of Batteries Required 2
Operating Environment Indoor
Operation Modes Cooling, Heating
Package Depth (cm) 7.62 cm
Package Depth (in) 3.00 in
Package Height (cm) 22.86 cm
Package Height (in) 9.00 in
Package Weight (kg) 0.69 kg
Package Weight (lb) 1.52 lb
Package Width (cm) 21.59 cm
Package Width (in) 8.50 in
Power Source Hardwired
Product Use(s) Central Air Conditioning, Cooling, Furnace, Gas Fireplace, Heating, Heat Pump
Programmable Smart Thermostat
Shape Rectangle
Smart System Compatibility Amazon Alexa, Android App, Apple Homekit, Google Assistant, iOS App, SmartThings
Stage Multi-Stage Heating
User Interface Buttons, Remote Control
Weekly Program Periods 7 Day
Warranty:
  • This product carries a 3 year exchange warranty redeemable at any Canadian Tire store.
Online Ordering
  • Pick Up is free at most stores (some stores require a minimum order value before tax)
  • Shipping fee is based on size and weight of products and distance from address to store
  • Same-Day Delivery costs $9.99 per order
  • Online Ordering Information
Returns
  • Most products can be returned or exchanged at any Canadian Tire store within 90 days of purchase
  • Some products are non-refundable and non-exchangeable
  • The return policy outlined above may not apply to the product you are currently viewing. For complete details and eligibility, please refer to our Return Policy for exceptions.

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ColourWhiteBlackBlackWhiteBlack
ShapeRectangle----
Display TypeLCD----

Review Highlights

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Reviews

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948 reviews with 5 stars.
48 reviews with 4 stars.
7 reviews with 3 stars.
4 reviews with 2 stars.
8 reviews with 1 star.

Overall Rating

4.9
940 out of 961 (98%) reviewers recommend this product

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Filter Reviews

  • satisfaction
  • ease of use
  • installation
  • purchase
  • product features
  • use with app
  • controlling
  • setup
1 to 5 of 1015 Reviews.
1 – 5 of 1015 Reviews

Great stat

11 days ago
I bought 3sensi stats. So far they are excellent for heat and air conditioning

Yes, I recommend this product.

Originally posted on Sensi

Great worry free thermostat!

12 days ago
I'm so glad I read about this in a magazine! It had helped us out so much!

Yes, I recommend this product.

Originally posted on Sensi

Excellent features including wifi

13 days ago
Being able to control via app is a huge help. I'd highly recommend it.

Yes, I recommend this product.

Originally posted on Sensi

Drew

14 days ago
Excellent price no time to hook up and work excellent.

Yes, I recommend this product.

Originally posted on Sensi

Great features

17 days ago
Very easy set up and can control right on your phone.

Yes, I recommend this product.

Originally posted on Sensi

1 – 5 of 1015 Reviews

Questions

1 - 10 of 11 Questions

Q: I currently have two screened but not touchscreen thermostats, one for upstairs and one for downstairs. They are by Honeywell and not Wifi or anything fancy as they are probably 10 years old. Would this product be able to replace both?

4 years ago
3 Answers
  • A: I had to upgrade my wiring to the thermostat from 2 wire to 4 wire and have a transformer installed to power the unit. Safe to say look at the manual on line and determine if it’s compatible with your system first. A professional can install it either way. 
    4 years ago
    Helpful?

Q: Does it have short cycle protection? Its the main reason I want to upgrade my old thermostat. Thanks

4 years ago
3 Answers
  • A: Link to the manuals https://sensi.emerson.com/en-ca/support/sensi-manuals
    4 years ago
    Helpful?

Q: Will this work with two wires. I want to up grade but I only have two wires coming from the furnace. 

4 years ago
3 Answers
  • A: Hello Bert, thank you for your question. Yes, our Sensi Wifi thermostat will function with two wires. we hope that this helps. Best regards.
    4 years ago
    Helpful?

Q: Will this thermostat work on a two wire system 

4 years ago
2 Answers
  • A: You have to add a 24 volt transformer/ C wire adaptor to get full functionality.
    4 years ago
    Helpful?

Q: Can this thermostat be set to C or F?

4 years ago
2 Answers
  • A: Yes it can
    4 years ago
    Helpful?

Q: Is this compatible with a 5G network?

5 years ago
2 Answers
  • A: Hello Brogan65, thank you for your question. Unfortunately, no, the Sensi Smart thermostat is not compatible with a 5G network. Best regards.
    5 years ago
    Helpful?

Q: can this item be installed without a C wire? I don't want to have to pay an electrician to put it in and our current thermostat doesn't have one!

5 years ago
2 Answers
  • A: Will work without C wire on system that heating and air conditioning but has trouble maintaining WIFI connection on single source such as a propane fireplace and you will have to remove battieries to reset each time it looses connection.
    5 years ago
    Helpful?

Q: I need to review specs more in detail, may I know the model of this Emerson Thermostat ?

3 years ago
1 Answer
  • A: Hi janzolap, thanks for your interest in Sensi. The model is ST55C, the specs can be found in this link: https://sensi.emerson.com/documents/spec-sheet-sensi-smart-thermostat-en-4849236.pdf
    3 years ago
    Helpful?

Q: Hi, it’s me again. Thank you for responding to my inquiry but it didn’t answer my question. What im asking is if two separate thermostats can be wired into just this one thermostat. Currently I have two, one for upstairs and one for the main, side by side

4 years ago
1 Answer
  • A: Hi Rikki, thanks for clarifying your question. The answer depends on your system configuration, if you have two separate systems (Furnace/AC) or if you have two different control zones using dampers, it would be necesary to replace with two thermostats as each one would manage one system with its own setpoints. If you only have one Furnace/AC system, it might be possible to control with just one thermostat. You can reach out to our technical support team so they can help confirm if this is possible: 1 888 605 7131
    4 years ago
    Helpful?

Q: what is the lowest setting you can set it ?

5 years ago
1 Answer
  • A: Hi artnik, thanks for your patience, due to a glitch this question was held unanswered. The Sensi Smart thermostat can be set from 8 C to 37 C as minimum and maximun setpoint respectively.
    4 years ago
    Helpful?
1 - 10 of 11 Questions