Load question regarding new showers

[Breeze83]

Evening guys
I was asked a question earlier and i was unsure if my answer was correct, I was asked if I could install 3x power showers all 3 are 9.5kw I’ve been assured the water supply is more then capable, the board has a 100amp main switch
My initial reaction was no, it’s way over the the main switch and even applying diversity it would be over without what ever else is running
it’s a hmo so their is potential for all to be used at the same time.
what I’m asking is was I to hasty to say no? Or have I missed/forgotten something that would enable it to work
Your comments are appreciated

 

[telectrix]

agree with you. in that situation showers heated by a separate source (e.g. central heating boiler) are more appropriate.

 

[Strima]

What’s the DNO fuse rated at?

 

[Breeze83]

Unsure of the Dno rating didn’t ask tbh

 

[Strima]

Might be an idea to find out. Don’t want to do the job to find out it’s only rated at 40 amps.

 

[westward10]

Three phase or single phase.

 

[Breeze83]

I’ve already declined the job but it is playing on my mind lol, what would be most commonly used? I want to dig a little further what if it was 100 or 80?

 

[Breeze83]

Three phase or single phase.

Single phase, standard 3 bed

 

[Ian1981]

If single phase domestic then to be honest I would not install more than one as it’s pulling around 39/40 amps with no guarantee that only one shower will be used at a time despite what the user may say.

 

[Octopus]

What is the space heating in the property?

 

[buzzlightyear]

If single phase domestic then to be honest I would not install more than one as it’s pulling around 39/40 amps with no guarantee that only one shower will be used at a time despite what the user may say.

I have seen a lot of hotels with more then 3 shower on the c/u with other loads .one single phase .

 

[pirate]

Umm...there's gadgets to stop you running more than one at a time, I recall...but that's fine for a standard household, and useless for an HMO.
I look forward to the ideas coming on...

 

[Breeze83]

Unsure of what heating they have
All the info I have is at the top, once I declined I was hurried off the phone, maybe someone else is contemplating the same job

 

[Octopus]

Unsure of what heating they have

You can't possibly answer the initial question unless you have a reasonable idea about the building / heating / numbers of people/ heating etc etc

 

[kenny7askew]

Umm...there's gadgets to stop you running more than one at a time, I recall...but that's fine for a standard household, and useless for an HMO.
I look forward to the ideas coming on...

yes its called a shower priority unit

 

[westward10]

Standard three bed, three showers!!

 

[buzzlightyear]

Unsure of what heating they have

not only if 3 shower are going in ,is to with the water pressure has well .

 

[Breeze83]

But the home is being converted to a hmo
I think 5 bed 3 power shower

 

[Strima]

Standard three bed, three showers!!

HMO.

 

[buzzlightyear]

if the water pressure is low ,they may has well get the hose pipe out and shower in the garden .