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That's a really good point, thanks.

Hi all Loft conversion, though I allowed 80mm clearance on the roof insulation (drilled a 80mm hole on the underside, another 80mm above to meet regs) the electrician got a bit excited with a Alan key / drill and channelled more out. Should I leave as is or fill with a non combustable mineral...

Just turning a couple of taps on?

No probs, no hot water storage tank, we have a cold loft tank which feeds all the cold water in the house bar the kitchen (which runs off the mains), we have a combi that supplies all the hot water to the house (42kw WB). We have a pump that feeds the 2 electric showers from the tank. This is so...

It fed by mains cold and combi hot. The cold can run through a pump like the 2 electric showers but I think that will effect the balance between hot and cold.

Thanks All I spoke to UK Power Networks to explore the option of a 3 phase supply. Around £20k plus extra's to run the new cable from the main outside which would allow to run the whole of London on my supply! So it looks like a thermostatic shower is the best option. All the cold water runs...

Thanks All I spoke to UK Power Networks yesterday to explore the option of a 3 phase supply. £8-15k plus extra's to run the new cable from the main outside. Also will need a new consumer unit and it has to be situated outside (currently under the stairs like most).So all in your talking circa...

Sorry how does that work. Surely you'd need zone valves and predict when you want a shower? Thanks

Hi All Stuck this on the plumbing website as I thought there would be an answer. My system runs cold for all outlets from the tank, including 2 electric showers via a Salamander pump. This means if you are having a shower or using one of the other cold outlets there is no loss of pressure. The...

Thanks All Quite frankly i'm none the wiser. I can't run a thermostatic shower, tried putting the hot water on in the kitchen and the pressure is 'pants' upstairs. As above you are trying to feed hot water to 3 bathrooms and a cloak room on 15mm. No matter what pressure or Kw combi it will not...

Outlet is 22mm radiator and 15mm hot water, there is only so much 15mm can do. . .

I think you guys are missing the point, or maybe I am. The whole house, bar the kitchen sink, runs off the tank. I have ran this system on multiple houses, the idea is that electric showers run of a pump fed by the tank. This means no matter who turns what cold tap on the showers will maintain...

Thanks for all the replies. The issue is not water pressure as the existing 2 showers run of a pump which is fed by the 50g water tank. It's the load on the electricity supply. The input is combi hot and pumped water cold. To add a little bit more colour, the shower is in the loft as loft...

Hi All Not sure where to post this, plumbing or electrics! I currently have two electric showers. The way the system is set up they both run of the tank via a booster pump. This means there is no loss of pressure if someone turns a tap on. I want to add a third one but this is not advisable on...

Wow, that was quick, many thanks!

Hi all Just in the middle of a loft conversion. Architect has stipulated chicken wire supporting rock wool for fire protection, no drama. But the videos I have seen runs it over the joists and creating a cradle 100mm deep. My question is can I just run it underneath punching in and...

Thanks,who's wasn't an issue before. Is there anyway I can reduce the plasterboard backed insulation to the minimum?

Thans. Yes, she'll is done, now considering insulation but trying maximise head room.

Thank you for the reply. Head height and not being able to exceed the former roof height was / is the issue. There will be a vapour barrier within regs. Also 150mm of Celotex XR4040? Achieves 0.14 so a bit confused!

Hi All I did a loft conversion at my old house circa 25 years ago with the help of a mate who was a builder. He helped me with the structural stuff including the steels. I did the rest myself. Back then the regs were 100mm of Celotex / Kingspan, I couldn't get that so went with 2 layers of 60mm...