Internet/Computer controlled switch
 

What I'm after is an electrical switch that can be triggered over the internet. I'm not looking for a network switch, which is all that comes up when I try doing a search. The X10 range might offer what I'm looking for, but not sure if it is compatible with UK voltage.

Just want a simple on/off switch so I can remotely control my central heating.

Here's one that says to have the 230V covered as well.
http://www.connectworld.net/computer...rotection.html .
Better check with your insurer first anyway.

X10 & Interface is probably the cheapest/easiest way
 

Have a look at http://www.letsautomate.com/

or http://www.simplyautomate.com/

You'll be needing X10 + an internet gateway.