Hows this!

My desktop is in the spare bedroom behind sliding mirror doors alongside was the router, to use the laptop two walls/rooms away in the livinroom (bungalow) I had to open the sliding doors to get a decent download signal about 8Mbps (on the desktop I was getting 12.4Mbps average).

So to stop having to go in and open the doors I purchased a 5mtr ethernet cable, drilled a hole in the bottom of the sliding door frame passed the phone to router and ethernet cable through the hole connected to the router now standing on a small box outside the cupboard 3" away from a radiator (which is on the wall between the living room and bedroom and yes I know we are told it will block the WiFi) but because I did not have a long enough telephone to router cable thats where it had to be.

I must now be using my radiator circuit as a carrier as I now get 12.4Mbps on average from both my desktop and WiFi laptop two rooms and two brick walls away. I have used the BT Wholesale,Broadband and Talktalk speed testers and they all give me the same readings within a few decemal points,and that is only moving the router 1.5mtrs as the crow flys from where it was. That I consider is some result seeing that I was resigned to only getting a WiFi of 8Mbps.