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persian_mafia | Staff 21.9K Views
Jun 1, 2023 4:55 PM

Emerson Sensi Wi-Fi Smart Thermostat

$60

$130

53% off
+ Free Shippingat Amazon
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Deal Details
Amazon has Emerson Sensi Wi-Fi Smart Thermostat (ST55) for $59.60. Shipping is free.

Thanks to Deal Editor persian_mafia for posting this deal.

Key Features:
  • ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access, and usage reports
  • Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications
  • Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement
  • Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you don't have to patch and paint your walls

Editor's Notes

Written by StrawMan86 | Staff
  • About this product:
    • 4.5 out of 5 stars rating at Amazon based on over 19,100 customer reviews
  • About this store:
  • Please refer to the forum thread for additional details & discussion.

Original Post

Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has Emerson Sensi Wi-Fi Smart Thermostat (ST55) for $59.60. Shipping is free.

Thanks to Deal Editor persian_mafia for posting this deal.

Key Features:
  • ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access, and usage reports
  • Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications
  • Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement
  • Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you don't have to patch and paint your walls

Editor's Notes

Written by StrawMan86 | Staff
  • About this product:
    • 4.5 out of 5 stars rating at Amazon based on over 19,100 customer reviews
  • About this store:
  • Please refer to the forum thread for additional details & discussion.

Original Post

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86 Comments

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Jun 2, 2023 12:42 AM
1.4K Comments
Joined Mar 2008
BUYmeTHISJun 2, 2023 12:42 AM
1.4K Comments
Quote from TheStig540 View quoted comment :
I enjoy mine. Check with your electric company, a lot of them have rebates. I got mine for a lot less.
Same here I actually got one from my electric company for free in New Jersey
Jun 2, 2023 12:43 AM
1.4K Comments
Joined Mar 2008
BUYmeTHISJun 2, 2023 12:43 AM
1.4K Comments
This is a very good, no nonsense thermostat, Very easy app function as well
Jun 2, 2023 12:43 AM
21 Comments
Joined Dec 2020
GreensmithJun 2, 2023 12:43 AM
21 Comments
I have one too, the app is easy to use and you can control most functions from it.
Jun 2, 2023 12:44 AM
645 Comments
Joined Aug 2006
nikhaJun 2, 2023 12:44 AM
645 Comments
Quote from gtsh0pp3r View quoted comment :
This is a very good, no nonsense thermostat, Very easy app function as well
I agree with your no nonsense part.
Jun 2, 2023 12:51 AM
1.6K Comments
Joined Mar 2015
SmyrhnaJun 2, 2023 12:51 AM
1.6K Comments
Will this be a good backup when my honeywell wifi stat fails?
Jun 2, 2023 12:59 AM
2.9K Comments
Joined May 2009
grueberJun 2, 2023 12:59 AM
2.9K Comments
I've had 3 of these since 2015. Still work fine. Once you setup a schedule they run on autopilot.

If you connect the C wire to them you can keep the illumination light constantly on.
Jun 2, 2023 1:13 AM
39.5K Comments
Joined Nov 2005
Dr. JJun 2, 2023 1:13 AM
39.5K Comments
Quote from TheStig540 View quoted comment :
I enjoy mine. Check with your electric company, a lot of them have rebates. I got mine for a lot less.
This. This is the cheaper of the Sensi models and is usually pretty cheap through utility rebates. I had a couple of the more expensive ST75 models in my last home and I like them far more than the Nest tstats I currently have.
1

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Jun 2, 2023 1:15 AM
400 Comments
Joined Dec 2006
qpjjJun 2, 2023 1:15 AM
400 Comments
Quote from gtsh0pp3r View quoted comment :
Incorrect, it comes with batteries as a back up, but is powered by HVAC
You are right. I don't have C wire in my system. I use a 24V AC/AC adapter for the C wire.
Jun 2, 2023 1:33 AM
73 Comments
Joined May 2009
dumlongJun 2, 2023 1:33 AM
73 Comments
Had 4 of these for nearly 8 years, solid and reliable no frills Wi-Fi functionality and scheduling. Only moved away to ecobee as I needed more specific heat pump controls based on outside temperature. Ecobee has more features but has also given me more connectivity headaches. Great thermostat if all you need is basic Wi-Fi controls and scheduling.

And like poster above, adding a plug in 24vac adapter as a c wire is super easy. But you might not need to as it draws power from a 4 wire setup or c wire if available.
Last edited by dumlong June 1, 2023 at 06:44 PM.
Jun 2, 2023 2:58 AM
1.2K Comments
Joined Aug 2004
By-TorJun 2, 2023 2:58 AM
1.2K Comments
I've had this for years now. Great for basic functionality and for remotely changing the temp/programming/etc. I installed these at my parents and in-laws house as well.

These do NOT require a C Wire for most installs that have "conventional heating and cooling". If you have a heat pump, Heat only, cool only, or want to use Apple HomeKit integration then you need the C Wire.
Jun 2, 2023 3:15 AM
6.5K Comments
Joined Oct 2018
Wavy-NifeJun 2, 2023 3:15 AM
6.5K Comments
Aren't these free with electric provider rebate?
1
Jun 2, 2023 3:19 AM
168 Comments
Joined Apr 2012
badaboomJun 2, 2023 3:19 AM
168 Comments
I got two of these. One for home and one at work. Easy to set up, simple interface on the app. App also shows me two thermostats even with two separate locations. I would not hesitate to get another if I ever need. Battery lasts me about 3 years.
Jun 2, 2023 3:20 AM
1.6K Comments
Joined Dec 2004
HeroTakesAFallJun 2, 2023 3:20 AM
1.6K Comments
App works fine, but the "float" aka cycle rate on this unit can't be adjusted much. I have it set to "slow", but it still kicks on/off too much, when the weather is super cold especially.
Jun 2, 2023 3:30 AM
4K Comments
Joined Nov 2005
FierceDeityLinkJun 2, 2023 3:30 AM
4K Comments
Quote from Wavy-Nife View quoted comment :
Aren't these free with electric provider rebate?
$64.50 for Georgia Power.

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Jun 2, 2023 3:34 AM
1.5K Comments
Joined Jan 2008
chronageJun 2, 2023 3:34 AM
1.5K Comments
Quote from Smyrhna View quoted comment :
Will this be a good backup when my honeywell wifi stat fails?
Yes, rock solid

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