Find and Compare Products

API, Data Set or  Excel File
Languages: English | Français
  • Find and Compare

  • Smart Thermostats Header Image
  • ENERGY STAR Certified
    Smart Thermostats

    Smart thermostats that earn the ENERGY STAR label have been independently certified to deliver energy savings.

For the average American household, almost half of the annual energy bill goes to heating and cooling – that’s more than $900 a year. Being smart about how you control your temperature settings with an ENERGY STAR certified smart thermostat will help you save money and stay comfortable in your home.

Each product uses slightly different features to help homeowners save energy, so do your research, and choose the ENERGY STAR certified smart thermostat that's right for you.

Common ENERGY STAR certified smart thermostat features may include:

  • Remote Control:
    • Using your smartphone, you can adjust the temperature in your home from anywhere with an internet connection.
  • Geofencing:
    • This feature allows your thermostat to detect when you’ve left for the day to ‘set back’ your HVAC system and save money on your heating or A/C bill. If you’re on the way home, the thermostat can automatically adjust the temperature to ensure you arrive to a comfortable home.
  • Learning temperature preferences:
    • Certain ENERGY STAR certified smart thermostats can learn your preferences automatically and establish a schedule that adjusts to energy-saving temperatures when you are asleep or away.
  • Over-the-Air Updates:
    • Your thermostat may update its software periodically to ensure it uses the latest algorithms and energy-saving features available.

Buying tips:

  • Make sure the smart thermostat you purchase is compatible with your heating and cooling system. For the very highest efficiency heating and cooling equipment, you may want a controller from the same company. (E.g. Air conditioner rated at 20 SEER or higher).
  • If your smart thermostat uses WIFI, make sure it’s reasonably close to the router to prevent periodic disconnections. If your thermostat is too far from your router, consider a WIFI range extender, which can improve overall connectivity.

ENERGY STAR certified smart thermostats are also designed to be compatible with the programs that some local utilities offer, providing home owners in their service territory with incentives to help them manage reliability.

Emerson - Sensi 1F87U-42WF


  • Thermostat Brand Owner Field details:
  • Thermostat Brand Name Field details:
  • Thermostat Model Name Field details:
  • Thermostat Model Number Field details:
    Sensi 1F87U-42WF
  • Family ID Field details:


  • ENERGY STAR Partner Field details:
  • Demand Response Summary Field details:
    Emerson Sensi Thermostats are designed to integrate with Utility Demand Response (DR) programs. Sensi Thermostats also provide access via API’s to Demand Response Management Systems (DRMS) providers. Sensi Thermostats are compliant with the California Energy Commission 2016 Title 24, Part 6 JA5 via virtual end node for OpenADR signals.


  • Standby Power (W) Field details:


  • Thermostat Heating and Cooling Control Features Field details:
    Time of Day Usage,Geofencing (User Device Based),Humidity Sensing
  • Thermostat Communication Method Field details:
  • ENERGY STAR Certified Field details:


  • Date Available on Market Field details:
  • Date Certified Field details:
  • Markets Field details:
    United States, Canada

Additional Model Identification

ENERGY STAR Unique IDField details: 2328478
UPC Codes: 786710553981

Find Online

Clicking on the "Go" link below will take you to web sites external to the domain.Exit Image
  • The Home Depot
    • ST55
      In Stock

Find Local Retail Locations for: change zip code

  • The Home Depot
    2.6 miles
  • Lowe's
    2.8 miles

Map & Stock Information

  • The Home Depot
    Ashburn - #4647
    2.6 miles
  • Lowe's
    STERLING Lowes - #1125
    2.8 miles
  • The Home Depot
    Sterling Park - #4602
    4.1 miles
  • Lowe's
    Leesburg Lowes - #3154
    4.6 miles
  • The Home Depot
    Leesburg - #4621
    5.5 miles
  • The Home Depot
    Reston - #4641
    8.3 miles
  • The Home Depot
    S Riding - #8551
    8.5 miles
  • Lowe's
    CHANTILLY Lowes - #1538
    10.8 miles
  • Lowe's
    GAITHERSBURG Lowes - #0223
    14 miles
  • The Home Depot
    Fairfax - #4601
    14.7 miles
  • Lowe's
    FAIRFAX Lowes - #3274
    15.2 miles
  • The Home Depot
    Gaithersburg - #2550
    16.2 miles
  • The Home Depot
    Germantown - #2560
    16.3 miles
  • The Home Depot
    Fairfax Circle - #4639
    16.5 miles
  • The Home Depot
    Manassas - #4607
    17.4 miles
  • Lowe's
    MANASSAS Lowes - #0397
    17.5 miles
  • The Home Depot
    Merrifield - #4605
    17.6 miles
  • The Home Depot
    Bethesda - #2509
    17.7 miles
  • The Home Depot
    Haymarket - #4213
    18.1 miles
  • Lowe's
    GAINESVILLE Lowes - #1870
    18.4 miles
  • The Home Depot
    East Manassas - #4648
    19.5 miles

Not in Stock at
Show All