Any ideas ?? type of system

[goz666]

Have had a call from a lad I know who wants me to put a cylinder and tanks into a house that is going to be made multi occupancy. He does not want gas, there are seven bedrooms each with a washbasin with hot and cold water and a separate bathroom and kitchen all requiring DHW. There will be an electric shower installed and bath. he wants a traditional cylinder and gravity fed DHW....anyone any better or easier ideas,this is going into a former pub. I don't really want the job, the place is a fleapit but if I do end up with it, I don't want to be there long.:hand:

 

[AWheating]

direct unvented cylinder with secondary return if runs are long, whats the cold main like?

 

[Ermintrude]

Two options . 1. Saida 100l unvented with tmv3 or traditional cylinder heated by electric heater with a pump.... Lasts longer than immersion plus it's about 12kw

 

[dmheat]

Loads of options! I quite like the Elson coral aquanox tbh. Either that or go for direct unvented ideally. Electric boiler like an amptec is certainly a good option too for improved recovery time but more money for both of course, and more time in the flea pit lol

 

[goz666]

Jesus it's years since I looked at any unvented, he doesn't want me to add any heating he's having some sort of electric heaters fitted. So with that in mind is it possible to just cap off the flow and return and use an UV direct cylinder for DHW only. And to add he's an asian friend of mine and tight as a ducks arse.

 

[dmheat]

Direct = heated by immersion elements, no coil

Indirect = coil with immersion as back up



no need to cap anything off of the direct version. Cold in, hot out,simples (excluding controls obviously)

 

[goz666]

Direct = heated by immersion elements, no coil

Indirect = coil with immersion as back up



no need to cap anything off of the direct version. Cold in, hot out,simples (excluding controls obviously)

What a t..t I am, sorry pal I had a bad day yesterday. Van broke down and I spent all day looking for spares, I know the difference I was looking at the elson coral you put on and must have been looking at the indirect model.

 

[Ermintrude]

Heatrsadia 100l vertical unvented whole kit £340 plumbs

 

[dmheat]

100ltr is wildly undersized for a 7 bedroom property. I would go 300ltr with 3 immersions. There's a guy local to me who keeps putting in tiny UV cylinders and wiring the immersions in to run constantly, then calling up and wondering why the eco stats are popping off daily in the salon where he fitted a 145litre uv cylinder.

Stored hot water, uv cylinders are not electric combis...

 

[Ermintrude]

But 3 units two per dwelling. Means that one flat won't zAp all the water

 

[dmheat]

7 wash basins, a kitchen, and a bath in total as far as I see? Basin usage won't rinse the cylinder, so the main volume, with an est 7-10 occupants, will come from the bath usage between them, those that shower are catered for via electric shower as per OP.

I reckon all suggestions in this post would work just fine, but a single unit either thermal store or UV would involve less pipework. Nobody else like the elson coral aquanox? I think they're great to be fair

 

[Ermintrude]

Yeh my thought was if some one had bath at least sinks still hot. Nothing quite like a cold wash and shave because someone had bath and washed dishes ?