Hi,
Posted this following topic but no answers so trying again as desperate!

Hi there,
Simple thermostat, simple task but this dummy can`t figure it out
All I want to do is control a convector heater in my conservatory. The thermostat has four terminals
The wiring diagram shows common = 1. satisfied = 2. demand = 3, connect to neutral = 4.
My question: where does the incoming(mains) live and neutral go ie; which number terminals, and which terminals do live and neutral go to the (appliance)?
I presume that as there is no earth terminal in the thermostat I will have to make my own connection.
Sorry to be such a duffer and any help will be appreciated.