this is probably more of a general electrical question. I want to add automation control to my underfloor heating. There is currently a thermostat installed. I would like to install the shelly 1 in parallel to the existing thermostat so that the floor can be controlled by both. In my head this sounds like it just means that I effectively have two switches between the power source and the load. I just wanted to make sure that im not creating some sort of short / loop when both the thermostat and the shelly 1 are on at the same time ?
im imagining that i would split the live and neutral wires so that they feed into both the thermostat and shelly 1 in parallel, then i would wire the output's of both the thermostat and shelly 1 to the underfloor heating wires.