Floor heating , Under tile cable kit

L Plate · May 27, 2009

Hello and good day everyone.. could anyone ( i know for sure all of you here knows this ) please give me an idea on how to install an under tile cable heating with thermostat..I am changing our kitchen and dicided to have a tile flooring , I've seen the unit ( heater ) in toptiles and it has an instruction on how to do it , as a humble 2330 student , i am confident installing lighting and outlets and running spur outlet for cooker fan in my house but for flooring , i haven't do thing such like this yet with the thermostat, pls could anyone share your knowledge and experience , i really need to know the first step on doing this ... e.g . where am I going to take my supply etc... THANK YOU ALL

have a nice day

Andy™ · May 27, 2009

there are a few different types, but basically its a heater cable that gets laid on the floor and tiled over. you then have a cable from controller to under floor thermostat. you need a supply to controller - usually 13A SFCU next to it. take feed from either ring main or its own circuit if you can

green-hornet · May 27, 2009

I would concurr with andyc on this one , if you buy a kit they are normally with full instructions.

The main problems you will face is not the wiring, they come in mat form on the roll, its the quality of flooring and insulation to force the heat up.

Andy™ · May 27, 2009

I would concurr with andyc on this one , if you buy a kit they are normally with full instructions.The main problems you will face is not the wiring, they come in mat form on the roll, its the quality of flooring and insulation to force the heat up.

not always. main ones ive dealt with have been a roll of cable and you space them apart to how much heat per sq mtr you want

seajayess · May 27, 2009

I agree with above, when I fit these I normally fit sfcu at socket hight and the heat mat controller above this at switch hight. feed the sfcu then 3 core to control unit for supply and switch return. I also install conduit from control unit box to lower box and then 1 leg out to around 500mm under floor to install heat sensor this way if the sensor fails you can replace it without lifting floor and another leg to feed the cold tails up for connection, hope this helps CJS

SPECIAL LOCATION · May 27, 2009

Double check the power rating of the system you are looking at..

most typical domestic systems are rated for connection to a 13a FCU...

But some bigger jobbies to cover larger floor areas can be higher!

Remember some work is classed as "Special Installation" this includes 'Electric under floor heating' and should be Part P notifiable irrespective of whether it is in a special location or not.

(pg 8 of Approved Doc P)