Electric shower backing plate?

[RrogerD]

I'm replacing my 8.5kw electric shower. However, with the water inlet slotted into the existing elbow, the whole unit sits proud of the wall by about 8-10mm.
I can pack it full of sealant all around but seems a bit messy.
Is there such thing as a unit back plate? Perhaps made of white plastic to match in and hopefully look like it's supposed to be there.

 

[endecotp]

I'm replacing my 8.5kw electric shower. However, with the water inlet slotted into the existing elbow, the whole unit sits proud of the wall by about 8-10mm.
I can pack it full of sealant all around but seems a bit messy.
Is there such thing as a unit back plate? Perhaps made of white plastic to match in and hopefully look like it's supposed to be there.

Modify the plumbing so it sits further back? (Post a photo.)


Note I asked a shower-related question last year and "fit it on a panel" was a common reply, so you might find some ideas here:

E

Thread 'Patching up for new electric shower'

12 Jun 2025

I am replacing an electric shower. The old one was tiled-up-to, rather than mounted on the tiles - maybe it was older than the tiles? So now I have this hole in the tiles:

I feel that I should fill that in to get a flush surface, and mount the new shower (which is probably slightly larger in one dimension or the other) on top.

No I don’t have any spare tiles. Yes I’ve looked under the bath.

The space is about 14mm deep in the top half and deeper below where it has been chased out. I am considering filling up most of the space with a chunk of 9mm plasterboard and then...

• endecotp
• Replies: 22
• Forum: Tiling

 

[jj4091]

Something like this help?

https://www.screwfix.com/p/triton-envi-retro-fit-shower-plate/397KC?gclsrc=aw.ds&gad_source=1&gad_campaignid=19822795373&gclid=Cj0KCQjwr4jSBhCSARIsAOX1E-JA-H5niq71YgRPRkyVKMGP2I2WSQB3Lu8JfWC5UPuYQYJhviIVl6waArXMEALw_wcB#product_additional_details_container

 

[endecotp]

Something like this help?

https://www.screwfix.com/p/triton-envi-retro-fit-shower-plate/397KC

Interesting - but sixty quid?!

 

[RrogerD]

Update:
Googling it says that one shouldn't seal behind (I was thinking some sort of wide seal / trim) as it needs air flow for cooling.
What I've done is sat it on 10mm packers, so it in fact sits proud of the wall. I've obviously sealed up the hole in the tiles where both the electric cables and the water inlet come through, to stop ingress behind the tiles. It all seems fine.

Adapting the inlet and elbow position wasn't really an option. It would have meant opening up the tiles hole and chiselling back the back substrate, what ever it is. There wasn't much pipe sticking out to play with. If things had gone wrong then I'd have right stuck.