Suggest thermostat system

Hi to all! Hope You have a good day

I was wondering can somebody suggest best mid range thermostats that work something like having single main thermostat with wires and wireless connectivety to child thermostats. Child thermostats would be placed in every room in the house so until specifc rooms reach some temperature the main heating system will be providing heat to the room. This would mean i also need to change temparuture regulators on radiators that would be compatible with such system. It would be nice if main control had wifi compatibiliry to connect from outside world (could setup a server). What I would like to avoid if possible is creating electrcity wires to child thermostats and regulators (batteries?) but if not possible I plan to provide it.

What I currently have is single circle heating system, all radiators on single pipe circle with gas central heating on one thermostat in one room, when this room reches desired temp all rooms start to get cold which results in that bathroom is usually cold even after providing it full presure and regulator on 100%.

Also have knowlege how tu setup RPI and use API-s in js, Go, Python. If system has open API that would be awsome but not required, I would satisfy with closed system.

All sugesstions are more than wellcome.

Submitted by PurppleMushroom

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