Dual Fuel Towel heater in bathroom

[DaveyH]

Hi,

I want to put a dual fuel towel heater on the wall next to our bathroom sink.

I also want to fit a timer like this http://www.toolstation.com/shop/Hea...tors/sd2672/Heating+Element+Controller/p52631

Here is a diagram of what it will be like.

Untitled

• DaveyH
• 25 Nov 2014
• 1

The power will come via a spur from the bedroom behind the sink. This will go to a switched FCU, which will then go to the timer and out to a wall plate into the towel heater.

The timer is rated IPX5.

The house is fully 17th edition Part P compliant (I even have the certificate ).

The wiring will all be 2.5mm twin & earth cable chased into the plaster and will be tiled over. The switched FCU, timer and outlet plate will be in 25mm deep metal back boxes also chased into the plaster.

The central heating pipe work for the entire house is copper and the boiler pipe work is earth bonded.

I’ve looked at a bathroom zones diagram and it all looks ok to me, or is there something I’ve missed?

Thanks in advance

 

[flameport]

Fine, although a better option is to put the element on the left side, and have the flex into the FCU, no need for a separate outlet plate.

 

[DaveyH]

Fine, although a better option is to put the element on the left side, and have the flex into the FCU, no need for a separate outlet plate.

Thanks for replying

Do you mean by using a switched FCU with a built-in flex outlet ?

Here is an example http://www.amazon.co.uk/Fused-Connection-Switched-Outlet-CMA052/dp/B007WSXMOY

So it would end up like this.

Untitled

• DaveyH
• 25 Nov 2014
• 1

I've never seen inside an FCU with a flex outlet, so I don't know how they work. Would I need to use a bit of chocblock to go from twin & earth to the flex or are there special terminals inside for doing this or have I misunderstood what you're getting at?

 

[deadshort]

Hi, no you are correct, you would have to connect the element cable to the directly to the timer. So, your flex plate is required.

Well done !

Kind regards, DS

PS You could put the FCU in the bedroom and put your flex out in its place.

 

[ban-all-sheds]

There are no spare terminals inside an FCU to use to connect the output from the controller to the towel rail flex. You'd need to use some choc-block, or crimps. Or run a continuous length of flex from the towel rail, in through the aperture in the FCU, and up the wall to the control.


BTW - the elements in duel-fuel towel rails don't last long - you might be better off just getting a factory sealed electric only one.

 

[DaveyH]

PS You could put the FCU in the bedroom and put your flex out in its place.

Would that be like this?

Untitled

• DaveyH
• 26 Nov 2014
• 1

 

[DaftPunk]

BTW - the elements in duel-fuel towel rails don't last long - you might be better off just getting a factory sealed electric only one.

I've had mine for 12 years and it's still working just fine.

 

[deadshort]

PS You could put the FCU in the bedroom and put your flex out in its place.

Would that be like this?

Untitled

• DaveyH
• 26 Nov 2014
• 1

Yip.

regards,

DS