Step 1: turn off the AC power. Open the app and check whether your thermostat is suitable for your boiler. ...
Step 2: find the right wires in your heating system. Find the call-for-heat circuit in your heating system. ...
Step 3: connect the right wires. ...
Step 4: install the Heat Link.
In case you are looking for a thermostat here you can find:
-for US: [ Ссылка ]
-for UK: [ Ссылка ]
