Horstmann HRT4-ZW thermostat

[fredblabla]

Hello,

I have few questions:
Is it possible to have one thermostat (hrt4) for three radiators? How to do it?

Is it possible to use a FGS211 instead of the ASR–ZW receiver that comes with the hrt4? If yes, would I be able to control the fgs211 with the HRT4 and in the same time control everything with the box (z-wave ou zipabox)?
Is it possible to have many FGS211 managed by one HRT4?

Is it possible to have more than one HRT4 in the house (one bby romm)?

Also is there some one who try the AS2-RF that add programmation on the thermostat?

Thank you for your help!