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10 Best heat only smart thermostat no c wire - March 2026

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Last Updated: 03-24-2026

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1

topTop product
Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

Emerson

9.8

9.8

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amazon

2

Sensi Lite Smart Thermostat, Programmable, WiFi, Easy DIY, Works With Alexa, ENERGY STAR Certified, ST25, Most Systems C-Wire Not Required, C-Wire needed with Heat/Cool Only & Heat Pump System – Black

Sensi Lite Smart Thermostat, Programmable, WiFi, Easy DIY, Works With Alexa, ENERGY STAR Certified, ST25, Most Systems C-Wire Not Required, C-Wire needed with Heat/Cool Only & Heat Pump System – Black

Emerson

9.6

9.6

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amazon

3

bestBest value
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

Amazon

9.5

9.5

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amazon

4

SASWELL Smart WiFi Thermostat for Home, Programmable Thermostat with C-Wire Adapter, 3H/2C for Heat Pump & Conventional Systems, Tuya App Control, Compatible with Alexa & Google Assistant, White

SASWELL Smart WiFi Thermostat for Home, Programmable Thermostat with C-Wire Adapter, 3H/2C for Heat Pump & Conventional Systems, Tuya App Control, Compatible with Alexa & Google Assistant, White

SASWELL

9.2

9.2

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amazon

5

Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow

Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow

Google

9.1

9.1

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amazon

6

Vine Thermostat for Home with Touchscreen Color Display, WiFi Smart Thermostat Compatible with Alexa and Google Assistant, 7day/8period Programmable, Energy Saving, C-Wire Required, Screen Size 2.8"

Vine Thermostat for Home with Touchscreen Color Display, WiFi Smart Thermostat Compatible with Alexa and Google Assistant, 7day/8period Programmable, Energy Saving, C-Wire Required, Screen Size 2.8"

vine

8.8

8.8

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amazon

7

ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant

ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant

ecobee

8.6

8.6

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amazon

8

SASWELL Smart WiFi Thermostat for Home, Programmable Thermostat with C-Wire Adapter, 3H/2C for Heat Pump & Conventional Systems, Tuya App Control, Compatible with Alexa & Google Assistant

SASWELL Smart WiFi Thermostat for Home, Programmable Thermostat with C-Wire Adapter, 3H/2C for Heat Pump & Conventional Systems, Tuya App Control, Compatible with Alexa & Google Assistant

SASWELL

8.4

8.4

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amazon

9

Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Energy Star, C-Wire Required

Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Energy Star, C-Wire Required

Honeywell Home

8.2

8.2

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amazon

10

Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75 Black 5.625" x 3.4" x 1.17"

Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75 Black 5.625" x 3.4" x 1.17"

Emerson

8.1

8.1

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amazon
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