Consumer unit, new circuit, sauna

[joboro]

Hi guys,

I'm looking to get a sauna put in the garden. It'll have a 6kW electric heater and I need to supply a 32 amp armoured cable with a junction box at the site the sauna is going and they will connect it up there.
It needs to be on a separate circuit and I might also add an ice bath chiller at some point next to the sauna.
Firstly, can I put the ice bath chiller and sauna on that same circuit? Ice bath chiller will be 13amp.
Secondly, I've attached a photo of my current consumer unit and I'm assuming there's no space to add this extra circuit anyway so I need to get a new one?
If so, what would you suggest getting? Is 100 amp limit enough with these additions? I may also add an EV charging point one day in the future too so thinking ahead about that and also possibly a garden office which will need electrics though I guess that could sit on another circuit?

I'm going to get an electrician in to do these works but just wanted to understand better before speaking to someone.

Thanks in advance!

 

[Murdochcat]

There’s no spare ways in that CU and it’s unsuitable for a EV circuit

Best you get local sparks round and tell them your immediate and long term needs before they quote

 

[ericmark]

The start point is earthing and bonding, what is class I what is class II and will you need to have a TT supply? Can earth rods be put in?

Only once that has been ascertained can one start on the design.

In doors we have an equal potential zone due to bonding of metal parts, once we go outside, then this is no longer the case, so there are problems with TN-C-S supplies, and we can't from the DNO head be sure the supply is TN-S so we have to assume it is TN-C-S also called PME.

Supplying a zone with a TT supply from a TN-C-S has some restrictions, as there needs to be some separation between the two, it is not simply a case of banging in an earth rod. The same problems exist with charging EV's, most garden equipment is class II so does not need an earth.

There are all sorts of methods around the problem, including isolation transformers, but until some one has done a survey of the site, worked out if there are any under ground services etc. We can't even start to answer questions as to what the options are.

Sorry I realise this is not what you wanted to hear, but only option is get an electrician involved before you start, and after a site visit he can advise on the options.

 

[joboro]

No worries guys. I appreciate you getting back to me either way! I'll get the electricians in!