![I need to install a C (common) wire adaptor so i can use a smart thermostat. Are the wires I need to connect to in that lower red box that's bolted shut, I need to install a C (common) wire adaptor so i can use a smart thermostat. Are the wires I need to connect to in that lower red box that's bolted shut,](https://i.redd.it/i-need-to-install-a-c-common-wire-adaptor-so-i-can-use-a-v0-7oxbt2dnacta1.jpg?width=1600&format=pjpg&auto=webp&s=13e063e39ca893faecae4a5a860f610c3232e282)
I need to install a C (common) wire adaptor so i can use a smart thermostat. Are the wires I need to connect to in that lower red box that's bolted shut,
HONEYWELL HOME, RedLINK 8000 series, Acts as a Splitter, Wire Adapter - 493Z82|THP9045A1098/U - Grainger
![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/368f3dd6-d1b1-4460-9fce-99d5f232b5a3/svn/wasserstein-home-safety-accessories-24vadapter25ftwhtusa-44_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
![24Volt 500mA Doorbell Transformer Competible with All Versions of Ring Doorbell and Nest Hello Doorbell,C Wire Adapter for Nest,Ecobee, Sensi and Honeywell Thermostat,8M (315") Long Cable : Amazon.co.uk: DIY & Tools 24Volt 500mA Doorbell Transformer Competible with All Versions of Ring Doorbell and Nest Hello Doorbell,C Wire Adapter for Nest,Ecobee, Sensi and Honeywell Thermostat,8M (315") Long Cable : Amazon.co.uk: DIY & Tools](https://m.media-amazon.com/images/I/41bB-hRUjaL._AC_.jpg)
24Volt 500mA Doorbell Transformer Competible with All Versions of Ring Doorbell and Nest Hello Doorbell,C Wire Adapter for Nest,Ecobee, Sensi and Honeywell Thermostat,8M (315") Long Cable : Amazon.co.uk: DIY & Tools
![Where can I connect c wire from adaptor if I don't have c terminal in my boiler control board - Home Improvement Stack Exchange Where can I connect c wire from adaptor if I don't have c terminal in my boiler control board - Home Improvement Stack Exchange](https://i.stack.imgur.com/SQO04.jpg)
Where can I connect c wire from adaptor if I don't have c terminal in my boiler control board - Home Improvement Stack Exchange
![24 Volt Transformer, C Wire Adapter Thermostat, Compatible with Smart Thermostats and Doorbells Power Supply (23ft Cable) - Amazon.com 24 Volt Transformer, C Wire Adapter Thermostat, Compatible with Smart Thermostats and Doorbells 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 Smart Thermostats and Doorbells Power Supply (23ft Cable) - Amazon.com
![24V 500mA C Wire Adapter for Thermostat and Doorbell Transformer, Compatible with Ring Doorbell, N est, Ecobee, Sensi, Honeywell, Sensi Smart WiFi Thermostat, Nes t Hell o, 8M (315") Supply Cord : 24V 500mA C Wire Adapter for Thermostat and Doorbell Transformer, Compatible with Ring Doorbell, N est, Ecobee, Sensi, Honeywell, Sensi Smart WiFi Thermostat, Nes t Hell o, 8M (315") Supply Cord :](https://m.media-amazon.com/images/I/61gFhBJ7umL._AC_UF1000,1000_QL80_.jpg)
24V 500mA C Wire Adapter for Thermostat and Doorbell Transformer, Compatible with Ring Doorbell, N est, Ecobee, Sensi, Honeywell, Sensi Smart WiFi Thermostat, Nes t Hell o, 8M (315") Supply Cord :
![thermostat c wire - Can I use a Honeywell Cwire adapter on a 2-Stage Condensing Furnace? - Home Improvement Stack Exchange thermostat c wire - Can I use a Honeywell Cwire adapter on a 2-Stage Condensing Furnace? - Home Improvement Stack Exchange](https://i.stack.imgur.com/U2v3Y.jpg)
thermostat c wire - Can I use a Honeywell Cwire adapter on a 2-Stage Condensing Furnace? - Home Improvement Stack Exchange
![Trying to set up the Amazon Smart thermostat with the C-wire adapter. First, I turned off the power to the unit. Second I followed the manufacture instructions to map the original wires Trying to set up the Amazon Smart thermostat with the C-wire adapter. First, I turned off the power to the unit. Second I followed the manufacture instructions to map the original wires](https://i.redd.it/trying-to-set-up-the-amazon-smart-thermostat-with-the-c-v0-5vf7iovwwn8a1.jpg?width=3024&format=pjpg&auto=webp&s=492a0c87567b2ab45b001dba059f3d69b6220b3b)