![Doorbell Transformer,AC 24V 500mA C Wire Thermostat Power Adapter,315" Long Cable 24V Power Supply - Walmart.com Doorbell Transformer,AC 24V 500mA C Wire Thermostat Power Adapter,315" Long Cable 24V Power Supply - Walmart.com](https://i5.walmartimages.com/asr/983796e9-16d7-4a4d-a916-7fe4da2ebff7.419b279b485820b01aaf77817583eccc.jpeg)
Doorbell Transformer,AC 24V 500mA C Wire Thermostat Power Adapter,315" Long Cable 24V Power Supply - Walmart.com
![My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee? My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee?](https://storage.googleapis.com/article_attachments/227874667/rwcfaststat.png)
My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee?
![24 Volt Transformer, C Wire Adapter Thermostat, Competible with All Versions of Ring Doorbell and Thermostat for Nest Ecobee, Sensi and Honeywell, 315" Long Cable 24V Transformer - - Amazon.com 24 Volt Transformer, C Wire Adapter Thermostat, Competible with All Versions of Ring Doorbell and Thermostat for Nest Ecobee, Sensi and Honeywell, 315" Long Cable 24V Transformer - - Amazon.com](https://m.media-amazon.com/images/I/51JJwTXsHtL._AC_UF894,1000_QL80_.jpg)
24 Volt Transformer, C Wire Adapter Thermostat, Competible with All Versions of Ring Doorbell and Thermostat for Nest Ecobee, Sensi and Honeywell, 315" Long Cable 24V Transformer - - Amazon.com
![Hotop 24 Volt Transformer for Thermostat Plug in, 16.5ft Long C Wire Adapter for Versions of Smart Thermostat, UL Listed Power Connector C Wire Compatible with Nest, Honeywell, Ecobee, Wyze, Sensi - - Hotop 24 Volt Transformer for Thermostat Plug in, 16.5ft Long C Wire Adapter for Versions of Smart Thermostat, UL Listed Power Connector C Wire Compatible with Nest, Honeywell, Ecobee, Wyze, Sensi - -](https://m.media-amazon.com/images/I/71TqSrxWyuL._AC_UF894,1000_QL80_.jpg)
Hotop 24 Volt Transformer for Thermostat Plug in, 16.5ft Long C Wire Adapter for Versions of Smart Thermostat, UL Listed Power Connector C Wire Compatible with Nest, Honeywell, Ecobee, Wyze, Sensi - -
![220V 240V Relay, Briidea On/Off Switch Electric Heating Relay with Built-in 24V Transformer, Replacement for Any Relay, Compatible with 24V Thermostat - - Amazon.com 220V 240V Relay, Briidea On/Off Switch Electric Heating Relay with Built-in 24V Transformer, Replacement for Any Relay, Compatible with 24V Thermostat - - Amazon.com](https://m.media-amazon.com/images/I/61Z9WTqnopL._AC_UF894,1000_QL80_.jpg)
220V 240V Relay, Briidea On/Off Switch Electric Heating Relay with Built-in 24V Transformer, Replacement for Any Relay, Compatible with 24V Thermostat - - Amazon.com
![Wasserstein 24-Volt Transformer and C-Wire Adapter for Google Nest Thermostat, Learning Thermostat, Thermostat E and Wyze Thermostat 24VAdapter25ftWhtUSA - The Home Depot Wasserstein 24-Volt Transformer and C-Wire Adapter for Google Nest Thermostat, Learning Thermostat, Thermostat E and Wyze Thermostat 24VAdapter25ftWhtUSA - The Home Depot](https://images.thdstatic.com/productImages/f7aa9d13-4d14-4d91-babd-c0a00773532a/svn/wasserstein-home-safety-accessories-24vadapter25ftwhtusa-4f_600.jpg)
Wasserstein 24-Volt Transformer and C-Wire Adapter for Google Nest Thermostat, Learning Thermostat, Thermostat E and Wyze Thermostat 24VAdapter25ftWhtUSA - The Home Depot
![Wasserstein 24-Volt Transformer and C-Wire Adapter for Google Nest Thermostat, Learning Thermostat, Thermostat E and Wyze Thermostat 24VAdapter25ftWhtUSA - The Home Depot Wasserstein 24-Volt Transformer and C-Wire Adapter for Google Nest Thermostat, Learning Thermostat, Thermostat E and Wyze Thermostat 24VAdapter25ftWhtUSA - The Home Depot](https://images.thdstatic.com/productImages/018443db-c2ab-40cb-b4d2-af52ac1aa332/svn/wasserstein-home-safety-accessories-24vadapter25ftwhtusa-76_600.jpg)
Wasserstein 24-Volt Transformer and C-Wire Adapter for Google Nest Thermostat, Learning Thermostat, Thermostat E and Wyze Thermostat 24VAdapter25ftWhtUSA - The Home Depot
![Bensn 24 Volt Transformer, C Wire Adapter Thermostat with All Versions of Doorbell and Thermostat for Nest, Ecobee, Sensi and Honeywell, 315 Inch Cable 24V Transformer - Walmart.com Bensn 24 Volt Transformer, C Wire Adapter Thermostat with All Versions of Doorbell and Thermostat for Nest, Ecobee, Sensi and Honeywell, 315 Inch Cable 24V Transformer - Walmart.com](https://i5.walmartimages.com/asr/3af00278-edf6-42db-ad28-34e1d3cf341b.6852add8e1fc305ad5a97de4250d6841.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
Bensn 24 Volt Transformer, C Wire Adapter Thermostat with All Versions of Doorbell and Thermostat for Nest, Ecobee, Sensi and Honeywell, 315 Inch Cable 24V Transformer - Walmart.com
![24 Volt Transformer, C Wire Adapter Thermostat, Compatible with Nest, Ecobee, Honeywell Smart Thermostat, Nest Hello, Ring Doorbell Power Supply (23ft Cable) - - Amazon.com 24 Volt Transformer, C Wire Adapter Thermostat, Compatible with Nest, Ecobee, Honeywell Smart Thermostat, Nest Hello, Ring Doorbell Power Supply (23ft Cable) - - Amazon.com](https://m.media-amazon.com/images/I/71g-TO6zv7L.jpg)
24 Volt Transformer, C Wire Adapter Thermostat, Compatible with Nest, Ecobee, Honeywell Smart Thermostat, Nest Hello, Ring Doorbell Power Supply (23ft Cable) - - Amazon.com
![Honeywell Home Non-Programmable Electronic 24-Volt Non-Programmable Thermostat Use with Electric Baseboard 120v-240v in the Non-Programmable Thermostats department at Lowes.com Honeywell Home Non-Programmable Electronic 24-Volt Non-Programmable Thermostat Use with Electric Baseboard 120v-240v in the Non-Programmable Thermostats department at Lowes.com](https://mobileimages.lowes.com/productimages/2be9d3fb-fa54-4509-abc9-91a392944ebe/50282018.jpg?size=pdhism)
Honeywell Home Non-Programmable Electronic 24-Volt Non-Programmable Thermostat Use with Electric Baseboard 120v-240v in the Non-Programmable Thermostats department at Lowes.com
![thermostat - Can I directly add a Common wire to this point on a 24VAC transformer, or will load be too high? (70mA) - Home Improvement Stack Exchange thermostat - Can I directly add a Common wire to this point on a 24VAC transformer, or will load be too high? (70mA) - Home Improvement Stack Exchange](https://i.stack.imgur.com/91cig.png)
thermostat - Can I directly add a Common wire to this point on a 24VAC transformer, or will load be too high? (70mA) - Home Improvement Stack Exchange
![C Wire Adapter 24 Volt Transformer Compatible with Nest Honeywell Ecobee Emerson Sensi Smart WiFi (White) - - Amazon.com C Wire Adapter 24 Volt Transformer Compatible with Nest Honeywell Ecobee Emerson Sensi Smart WiFi (White) - - Amazon.com](https://m.media-amazon.com/images/I/71nKqB-nArL.jpg)
C Wire Adapter 24 Volt Transformer Compatible with Nest Honeywell Ecobee Emerson Sensi Smart WiFi (White) - - Amazon.com
![My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee? My heat-only system only has two or three wires connected to the thermostat. Am I compatible with ecobee?](https://storage.googleapis.com/article_attachments/227874667/gasvalvefaststat.png)