TellStick and heater

[SuperCed]

Hi,

I just saw tellstick duo and it seems to be a great product.
I want to use it to control my heaters with pilot wire (day/night/frost).

What king of product do you recommand for the heater receiver ?
I saw that there are some DI-O products but I don't know if it's the best or if there are cheaper ones.
I live in France, and use MacOS X (I don't know if theses information can be useful...)

Can you help me ?

Thanks!

[SuperCed]

I saw there is now a Chacon module for that :
http://www.univers-domotique.com/chauff ... 01331.html

Do you think it's gonna work with my Telldus Tellstick ?