best system for a 8 showers and 1 kitchen??? HELP PLEASE !!!

[ksklondon]

Hi Gentleman,

Need some expert advice on the most economical (£) and sufficient system for a domestic set up to a house with the following requirements:-
12 radiators, (most rads are double convector and 1000mm X 600mm)
8 towel rads.
8 showers with 8 basins
1 kitchen
The 8 showers at times may all be running at once so I need to design in for this possibility.
The constraints I have are:-
Mains gas 28mm
Mains water pressure of around 4 bar with blue poly pipe 32mm
An area of 1.6m X 1m to fit everything into.
I can run all new pipe work as required and have already taken the 32mm mains water to the loft and made a manifold with 9 outlets taking 22mm copper to each shower room and kitchen
Any guidance on the best set up will be greatly appreciated.
I don’t want to get it wrong and want to ensure good flow in all showers. Please advice on the most economical set up without compromise on quality too much.

Many thanks

 

[ecowarm]

1.6 x 1 m by how high? about 4m and it may be possible

 

[ksklondon]

nope 2.1m

 

[ecowarm]

And welcome to the forum, by the way

 

[ecowarm]

No chance

 

[ecowarm]

8 electric showers, if incoming cable is of suitable size

apart from that you need a plant room min size 2.5x 2.5 floor space for 2 unvented cylinder and boiler plus pipework and controls. IMO

 

[ksklondon]

iv got a 100 amp meter and 25mm meter tails?

 

[Roger Welton]

Not a chance, small footprint solutions would require high heat input, (plate heAt exchanger or high recovery cylinder) low input solutions require more space to store the volume to keep up with demand.

 

[ecowarm]

iv got a 100 amp meter and 25mm meter tails?

If 8kw showers 34 amps x 8 = 272 you would need at least 300+++++ amps with the rest of the house to concider

Running all at the same time, you are up a certain creek without a paddle

 

[mfgs]

Is there room for unvented tanks in the loft and possibly an accumulator to go with them? You will need a large store of water for sure, even vented hot water tanks and booster pumps could work, if you fitted a breaker tank on the mains coming in aswell so you get balanced pressures. If there isnt room in the loft, then I cant think of anything that will work that could fit in the space you have stated.

 

[Roger Welton]

One of these sized appropriately, and decent sized boiler won't be far off in terms of size. Would likely need a larger gas meter and line though

 

[mountainman]

This is a Domestic House!!!
I've seen smaller systems in guest houses.

It could be done but I think your pushing your luck hoping for a free design service:clover:

 

[Nostrum]

Cold showers could work?

 

[ksklondon]

can you recommend anything suitable please?

 

[Davinder]

i'd go for unvented tanks supplied by a break tank in the loft or out-building.

If you need anythink more specific, then you'll need someone to come out and have a look. Where abouts is the job maybe someone from the forum can help.

 

[ksklondon]

jobs in feltham, 10 mins from heathrow. dont need massive flow rates in the showers. just them them sufficient.

 

[Davinder]

I'm going to heathrow tomorrow (hoiliday to Las Vegas :grin. To bad I'll be there at 5:00am, otherwise i could have popped in and had a look.

 

[ecowarm]

Basic shower 8l/min x 8 = 64 l per min what do you get from the 32mm main?

 

[ecowarm]

You will proberbly need storage cisterns if the incoming main can't supply the water flow required or an accumulator, but this all takes up space which you say you don't have

 

[Howsie]

Can cover Feltham if necessary. We've a big Jon running in Chiswick and could pop in for a look on Friday if that helps?

 

[ksklondon]

yes that would be great, can i have a number so i can cordinate a time with you.

 

[ksklondon]

id say about 70L per minute. The mains flow/ pressure is banging

 

[ksklondon]

thanks for rubbing it in about Vegas, have a safe journey