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- 6 Jan 2005
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Hi, currently renovating/extending, and will need a new HW/heating system. The heating is not a problem, but HW may be. Currently, we have 4bar mains pressure and a basic flow rate test (tap+bucket) gives us 27l/min.
I was intending to get an unvented cylinder put in, as we will have two showers and it'll at least partly defeat the point if we can only use one. One of these will be the attic (about 8-9m up).
Now... I've found out from a friend that Welsh Water are likely to reduce our mains pressure to about 2.5bar (as part of a leak reduction strategy). Since he would be partly responsible for implementing this, I suspect the information is accurate - I'm trying to confirm it but as you can imagine this is not easy. I guess further reductions can't be ruled out - they're only obliged to provide 1bar, apparently.
So... is 2.5bar going to be enough? I'm sure 1bar isn't. I don't want to spend a lot of money on a solution that might become useless in the near future. The only really 'safe' option I can think of is a traditional vented cylinder, but there's absolutely no room for a header tank.
I did put in some 10mm T+E 'just in case' so one electric shower is a possibility.
Thanks in advance,
Neal
I was intending to get an unvented cylinder put in, as we will have two showers and it'll at least partly defeat the point if we can only use one. One of these will be the attic (about 8-9m up).
Now... I've found out from a friend that Welsh Water are likely to reduce our mains pressure to about 2.5bar (as part of a leak reduction strategy). Since he would be partly responsible for implementing this, I suspect the information is accurate - I'm trying to confirm it but as you can imagine this is not easy. I guess further reductions can't be ruled out - they're only obliged to provide 1bar, apparently.
So... is 2.5bar going to be enough? I'm sure 1bar isn't. I don't want to spend a lot of money on a solution that might become useless in the near future. The only really 'safe' option I can think of is a traditional vented cylinder, but there's absolutely no room for a header tank.
I did put in some 10mm T+E 'just in case' so one electric shower is a possibility.
Thanks in advance,
Neal