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FITTING A POWER SHOWER

I have just spent a lot of hours looking for a 12v power shower to fit(if there is such a beast?)
I think,in fact I know I need some advice please from some clever person out there.
Do I need seperate pump and shower or do I get a 12 v shower mixer unit and if so from were please? Or I I looking at this completley wrong???
HELP
Ray

Asked by: RAY GORMAN  | 12.05pm, Thursday 31 January


WW says:

I have not seen a 12V power shower... though if you have an inverter or decent shore supply, you could easily fit a 230V version.
If you want a high pressure shower, you will need a calorifier supply, rather than an instantaneous water heater.
A cheaper option (and bearing in mind that some power showers require large amounts of (hot) water- and that storage in most boats is limited, would be to fit a 12V boost water pump in the supply lines.
The water supply would be pumped to the second set of pumps (one on hot, one on cold side) by the normal water pump: then pressurised by the boost pumps. This would then pass to a normal shower mixer control, with pressure switches set in the pressurised side.
A downside of this is that you would need pumps that a) were rated for water up to 90 deg C and b) had a LOWER flow rate than the main supplying pump.
The most successful way to fit this, as far as I know, would be to fit a seperate hot water source (like a second calorifier- with the heating coils added to the return from a main calorifier), pressurised by its own dedicated pump.
It is also worth noticing that many boat pressurised water systems on boats are far more powerful than domestic units, so possibly not required a power shower. Also, many power showers use a lot of water, which can be a difficulty on a boat.
Superyachts that have power showers fitted usually fit domestic 230V ones- the market for 12/24V versions is probably so small that manufacturers won't consider the investment worthwhile, so its unlikely that you will find one "off-the-shelf".
If we can be of further help, then please let us know.

Mark Langley  | 2.49PM, Thursday 31 January


Readers say:

oK
tHANK YOU mARK FOR ALL THAT INFO.WILL DECIDE WHAT WE WILL DO.WE ALRREADY HAVE A HEATER UNTIT SO WILL PROBABLY BE ABLE TO USE THAT.
REGARDS
RAY GORMAN
ray.gorman1@btopenworld.com

RAY GORMAN  | 2.59PM, Thursday 31 January

we have a thermostat mixer shower unit from screwfix run of our normal waterpump nothing extra for pressure and hot water comes from a calorifier never had any problems and if we have visitors and all want a shower we just keep the engine on and that keeps the water hot enough

mick turner  | 9.58AM, Friday 1 February

Hi Mick
Thank you for that.Ok Bit late should have read this first,have already ordered a extra pump.Never mind probably will need it later.
Again thank you for your input on my questions.
Regards
Ray

RAY GORMAN  | 11.55AM, Friday 1 February

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