I have come across what looks like the same system at
Conrad Electronics. It is somewhat cheaper than House-Intelligence. Does anyone have any experience with this supplier? Is the system the same thing? Typically, I found them a couple of days late having just placed an order for my first bits of kit from HI (an actuator, a thermostat, the USB interface and a boiler interlock). If this is the same stuff, I assume I shouldn't have a problem adding it to my system when I come to add more rooms should I?