Install a shower without a water tank and with low pressure?

[PhilHalf]

Hi,

I don't really know much at all about plumbing and stuff, but I'm looking at installing a shower over the bath (rather than a separate cubicle shower). I'm just not sure if I can do this as I don't have a water tank. A lot of the things I've been looking at to see what sort of shower I'd need say that they all work of water tanks (or I've just not understood them properly).
As I understand it, my cold water is mains fed and the hot water is just passed up through the boiler and back around from there. Could I install a shower with this setup? If so, what sort of shower would I need (power shower, electric shower etc.)?

Also, the water pressure throughout the whole house is pretty poor. Would this stop me from installing a shower if I could? Somebody has suggested I get a pump, but I wouldn't know what sort of pump I'd need and where and how to install it...

Sorry if the question is a bit all over the place. If more details are needed, please ask.

Thanks in advance for any help or advice,

PhilHalf

 

[adwt2004]

You would first need to check whether you have a combi boiler or not. Then if you do then a pump supplying a mixer shower is no good. The combi already contains a pump and I don't believe you can pump a combi's hot water or mains cold water. Try and find out and post here what boiler you have. Make and model.

 

[PhilHalf]

It's a Baxi Combi Instant 105e.

 

[mogget]

If you've got poor mains pressure / flow and a combi boiler, there's nothing to stop you using a thermostatic mixer shower but you'd have to bear in mind that the flow of the shower would also be poor.

If you want a high pressure shower I think you'd have to look at installing tanks and a pump which would be quite involved. It is possible to heat a hot water cylinder with a combi though.

It may be possible (I'm not sure) to supply an electric shower via a tank and pump.

There are also more technical ways of boosting mains pressure / flow which I know little about. Simond may be of help here!