Hello I'm new here and guess what? I need help! 
There I was thinking I had the design of my proposed power shower installation well & truly sorted when I received the Warix flange, in the post. There, to my horror, printed on the package is a diagram specifying a minimum height difference of 1.2m between the Warix and the underside of the cold water cistern. I had not planned for that because the copper cylinder is destined for the loft I cannot achieve 1.2m, only 0.5m. Of the layouts I have viewed online I have not seen any using a flange (Warix, Surrey or Essex) requiring any minimum height dimension, so my plans are thrown into chaos.
The power shower is a 'nice to have' but if I have to revert to a gravity then so be it. What I'm really worried about is that I have overlooked a fundamental rule dictating a minimum head between cistern & DHW cylinder.
As I see it I have the following options:
1. Find an alternative type of flange that does not have that height constraint and go for the power shower.
Could anyone tell me if a Surrey, Essex or whatever would be suitable in my case?
2. Keep the Warix and revert to a gravity shower. I'm assuming that the 1.2m height differential is only a requirement of a power shower install and that 0.5m will be OK for a gravity. Is that right? I hope so!
3. Take no notice of the diagram and just b****y do it! Power shower and all.
All the work that is to be carried out; new bathroom layout, without an airing cupboard, & re-vamped central heating revolves around the cylinder going in the loft so if there is some 'rule', I am not aware of, dictating a minimum height between cistern & cylinder I'm really in the s**t!
BTW The intended power shower is a Mira Event, which is an integral pump type.
All help and advice readily and gratefully accepted.
Cheers.
Big Bob.
There I was thinking I had the design of my proposed power shower installation well & truly sorted when I received the Warix flange, in the post. There, to my horror, printed on the package is a diagram specifying a minimum height difference of 1.2m between the Warix and the underside of the cold water cistern. I had not planned for that because the copper cylinder is destined for the loft I cannot achieve 1.2m, only 0.5m. Of the layouts I have viewed online I have not seen any using a flange (Warix, Surrey or Essex) requiring any minimum height dimension, so my plans are thrown into chaos.
The power shower is a 'nice to have' but if I have to revert to a gravity then so be it. What I'm really worried about is that I have overlooked a fundamental rule dictating a minimum head between cistern & DHW cylinder.
As I see it I have the following options:
1. Find an alternative type of flange that does not have that height constraint and go for the power shower.
Could anyone tell me if a Surrey, Essex or whatever would be suitable in my case?
2. Keep the Warix and revert to a gravity shower. I'm assuming that the 1.2m height differential is only a requirement of a power shower install and that 0.5m will be OK for a gravity. Is that right? I hope so!
3. Take no notice of the diagram and just b****y do it! Power shower and all.
All the work that is to be carried out; new bathroom layout, without an airing cupboard, & re-vamped central heating revolves around the cylinder going in the loft so if there is some 'rule', I am not aware of, dictating a minimum height between cistern & cylinder I'm really in the s**t!
BTW The intended power shower is a Mira Event, which is an integral pump type.
All help and advice readily and gratefully accepted.
Cheers.
Big Bob.