Two mats one controller

mattg4321 · Apr 12, 2019

Whats this got to do with underfloor heating

Toneyz · Apr 12, 2019

Mark, you can not use a 12v stat to switch 230v. You are giving me the impression that you do not have the electrical competence/understanding so please don't proceed further others on here maybe not so diplomatic.

Nigel · Apr 12, 2019

Mark Gee said:
Yes each mat is 150w

Per meter I think you will find.

Mark Gee · Apr 12, 2019

the new thermostat i have is 230v,

The wires that came out of my old stat, the electrician (who fitted my nest) says is 230v so i used a 12v to power my nest for my radiators and heating the water,

I planned to use the wires that came out of my old stat ( see photo)
to power my new UFH stat,

Toneyz · Apr 12, 2019

Why don't you post a picture of the stat that you want to switch these two electric UFH mats.

Charlie_ · Apr 12, 2019

In the bathroom have you got a probe or an ntc?

ian. · Apr 12, 2019

The underfloor controller will come with a probe for putting in the floor, within the controller is the room temperature sensor, no need for another thermostat.

The controller can be set to turn the heating mats on or off depending on either the floor temperature or room temperature.

Mark Gee · Apr 13, 2019

So i understand Blue is (N) Brown (L) Green (E)
But not being an electrician,
i haven't a clue about these Grey / Brown / Black / Green(E) on where they go into my controller,

I understand 3 + 4 are the Brown and blue on my mat,
and 6 & 7 are the floor sensor,
1 + 2 i am stuck on

[ElectriciansForums.net] Two mats one controller

Toneyz · Apr 13, 2019

Is this what you want to fit? What has a nest got to do with this UFH?. For what you have posted above ( post 23) I recommend getting an electrician in or to check it.
1 and 2 at a good guess are live and neutral supply into the stat but you would have to post the installation instructions up. This three core and earth where does it go to?

mattg4321 · Apr 13, 2019

Get someone who knows what they are doing to install this

SparkyChick · Apr 13, 2019

@Mark Gee ,

The forum has a reasonably strict 'no step by step guides' policy.

The reason for this is simple... safety. By your own admission, you are not an electrician and your questions indicate you have neither the understanding or equipment to carry out this work safely.

The best advice the forum as a whole can give you is to engage the services of a local electrician, preferably one who comes recommended from family and friends. The installation of electric underfloor heating requires various tests to be carried out to ensure the installation is safe, you clearly are no in a position to carry out those tests, so please stop and engage an electrician.

Thread closed.