Can you run more than one extension boxes off the same system

stephenjm

I have a conventional boiler/radiator setup in my house and an additional zone using a Salus RT500RF (TX) controller for underfloor heating in an extention.

To control this underfloor heating; is it possible to add an additional extension box, in place of the sender, with a awireless thermostat.

This way I can control the whole house in one system

Hope you can help

GrilledCheese

Only one extension kit per system.

stephenjm

Thanks.
I should probably use a wireless smart thermostat then?