Try with modbus number component, should work for both. Keep on eye the log to see what esphome is actually requesting. These modbus write components have almost no documentation.
I don’t know, I like to keep everything minimalistic and I hate fancy gauges etc…
By the way, if you prefer number instead of stupid slider, you can use: mode: box
on number component.
Yes, you’re right. Moreover, I will apply the climate platform to the room thermostats instead, as I won’t have much use for it on the heating system.
I just need to change the display of the values to text, that will be more meaningful.