hi. Sorry I have to write in English- don't have Russin
What you want to have is- 2 termoregulators
One for your boiler (Anton) so that you can heat water to the temperature you need It suppose to check temperature of water and turn boiler on and of when its needed Mostly it should be there from factory
Than you want to put 3 way mixing valve- using which you can ragulate temperature of water going to your radiators. basically mixing valve works like by-pass- one part of water goes to radiators another returns to the boiler
second thermostat you want to put in the room. Its simple heat thermostat
(cost $10 program digital $30)
THis thermostat will control your system and will turn system on and of ,keep the same temperature in the room
keep your circulation pump running
SO NOW HAW IT WORKS:
The thermostat sees that temperature in the room drupes for 1C. It makes pump to start circulate water threw the radiators. Boilers ThErmostat sees that temperature of water is low and turns boiler on. Thats all.