Hi,hello all, this is my very first post 
I really need someone help.
I would like to have the shelly 1 to control my natural gas boiler by receiving the H&T commands.
Can someone help with the wiring to connect the shelly1 to the boiler?
This the wiring for the original thermostat (pag 9):
https://www.la-certificazione-energetica.net/schede%20tecni…as-VICTORIA.pdf
Many thanks in advance!!