Best Emerson Thermostats in 2026

PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties

EASY DIY INSTALLATION: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation; Works with the HVAC equipment found in most homes. Common wire (c-wire) is required

SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports

Fan Relay Heavy-Duty Single Pole Nor Open

Brick-Red Color | Nonflammable | Provides A Fireproof Acoustic Seal

This Is Manufactured In United States

Designed exclusively for Sensi Wi-Fi thermostat (only models ST55 and 1F87U-42WF)

It doesn’t fit Sensi ‘Touch’ Wi-Fi thermostat models ST75 & ST75W

Covers most marks, holes or any other issues left behind by other thermostats

Easy-to-read digital display with backlight

Non-programmable thermostat

Compatible with single stage heat only systems

5.25" lead length

Molex side lock connection with .092" male pins

200 Degree insulation

Big, clear display - easily read in low lighting

Selectable programming - 7 day / 5-1-1 / off

Easy installation - built in level indicator, pluggable terminals and streamlined configuration menu

Non Programmable Thermostat

Brand name: Emerson Thermostats

Model number: 1F86-0244

Large, easy-to-read 12 in. touchscreen display

7 day programmable thermostat - set a different schedule for each day of the week

Compatible with single stage and heat pump systems without aux

Direct Replacement for Most Fan / Heat Sequencing Functions

Four switches

On Timings: 1-110 sec

Big, clear display - easily read in low lighting

Selectable programming - 7 day / 5-1-1 / off

Easy installation - built in level indicator, pluggable terminals and streamlined configuration menu

Easy to read 2 square-inch display

Home/sleep/away temperature presets

Dedicated single stage thermostat

The product is easy to use and highly durable

For use on single stage heat only systems

Easy to Install & Use

Universal compatibility - replaces 150 common igniters covering almost 90% of applications

For gas-fired forced-air furnaces, water heaters and boilers

Features universal mounting bracket to eliminate the need for multiple brackets

For use on single-stage heat only systems

Features rugged snap-action contacts, adjustable heat anticipator and bimetal thermometer

Temperature range: 50-90 degree F

Adjustable fan control allows you to set the temperature set point to match your specific needs

Temperature range: 90 to 130 degree

Includes Thermostat and Tab-to-Screw terminals

WORKS WITH ROOM SENSORS: Compatible with Sensi Room Sensors to balance temperatures throughout your home (sold separately)

PRIVACY PROTECTION: Sensi won’t sell your personal information to third parties

SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi Touch 2 smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports

EASY DIY INSTALLATION: Do it yourself fast with a built-in level and simple step-by-step instructions. Works with the HVAC equipment found in most homes. No common wire (c-wire) required on most systems (only required on heat only and cool only systems)

SAVE ABOUT 23% ON HVAC ENERGY*: ENERGY STAR-certified and packed with features that help you save money, including flexible scheduling, geofencing, remote access and usage reports

PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties or leverage your thermostat activity data for targeting or advertising purposes

EDITORS CHOICE BEST OVERALL SMART THERMOSTAT by USA Today’s reviewed.com

SAVE ABOUT 23% ON HVAC ENERGY*: By adjusting the temperature using flexible scheduling, remote access, and geofencing, Sensi customers saved about 23% on HVAC energy usage

MOST INSTALL IN 30 MINUTES OR LESS**: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation. Skip any extra work painting or patching the wall thanks to the standard thermostat size.

Adjustable limit control allows you to set the temperature set point to match your specific needs

Temperature range: 135 to 175 degree F

Includes thermostat and Tab-to-Screw terminals

High Accuracy

4000-Watt Maximum/250-Watt Minimum Power at 240-VoltAC

Can be used on both single pole and double pole applications

For control of most line voltage heating applications without the use of relays or motor starters

Hydraulic action element - no leveling required

Temperature range: 55-85 degree F

Save up to 23% annually on heating and cooling costs (compared to a hold of 72°F)

Control from anywhere using your Android or iOS device

Add SmartSensor to manage hot or cold spots and deliver enhanced comfort to the rooms that matter most

EDITORS CHOICE BEST OVERALL SMART THERMOSTAT by USA Today’s reviewed.com.SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering important usage notifications, alerts about your equipment, and maintenance reminders like filter replacementBACKED BY HVAC EXPERTISE: More than 100 years of experience with HVAC systems went into the development of SensiSMART HOME COMPATIBLE: Sensi easily integrates with popular smart home platforms including Amazon Alexa, Apple HomeKit, Google Assistant and Samsung SmartThings

SAVE ABOUT 23% ON HVAC ENERGY*: By adjusting the temperature using flexible scheduling, remote access, and geofencing, Sensi customers saved about 23% on HVAC energy usage

MOST INSTALL IN 30 MINUTES OR LESS**: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation. Skip any extra work painting or patching the wall thanks to the standard thermostat size.

PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties

EASY DIY INSTALLATION: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation; Works with the HVAC equipment found in most homes. Common wire (c-wire) is required

SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports

No more programming: With Auto-Schedule, the Google Nest Learning Thermostat learns from you and programs itself..Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page

Home/Away Assist: don't heat or cool an empty home. Home/Away Assist adjusts the temperature after you leave.

Remote control: Control your thermostat from anywhere using the Nest app.

PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties

SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access, and usage reports

EASY DIY INSTALLATION: 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

PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties

EASY DIY INSTALLATION: Use the built-in level, illuminated easy-click terminals and step-by-step app instructions for a quick installation; Works with the HVAC equipment found in most homes. Common wire (c-wire) is required

SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports

COMFORT COMES IN YOUR COLOR. Personalize your Wi-Fi Smart Color Programmable Thermostat to fit your décor. The Honeywell Wi-Fi Smart Thermostat does have an auto changeover feature in which the thermostat automatically selects heating or cooling depending on the indoor temperature. Heat and cool settings must be at least 3 degrees apart. The thermostat will automatically adjust settings to maintain this 3-degree separation.

SAVE ENERGY AND GET REWARDED by checking with your energy provider about available rebates. Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.

YOUR SCHEDULE. YOUR WAY. Flexible programming options for your schedule or utility company’s peak rate pricing.

ENERGY STAR certified to help save energy, track your heating and cooling and send personalized tips on reducing energy use.

SAVE ENERGY AND GET REWARDED by checking with your energy provider about available energy savings rebates to save on your purchase. Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.

CONTROL FROM ANYWHERE by using the app or compatible smart home partners including AMAZON ALEXA, GOOGLE ASSISTANT, MICROSOFT CORTANA, and more. Flexible programming options are also available if you'd rather set it and forget it but still benefit from energy savings.