Looking for 25L tank/cylinder for pressurised hot water use

[ITNZ]

Hi,
Thanks in advance to those who post answers and suggestions.

I am looking to increase the hot water tank in a caravan (currently ony 5L!!) to approx 25-ish. I intend putting inside it a 1Kw element and plumbing it inline with the existing system and dispensing with the massive 5L one which is a useful as I am to my wife!!
I am seeking a 25L container (I think it needs to be steel) that will withstand having an element in it and having hot water inside. Dimensions are approx 300mm x 350mm x 600mm or something that does not exceed those dimensions (it needs to fit under seating area).

Also I am seeking an element of approx 1KW (dont mind 2 x 500-ish Watt.
Criterion: Needs to be cheap-ish, otherwise I may as well get it made to my design. Elements need to be as standard as possible for cheapness - no point in spending £200.00 on an element, seems ridiculous!

So, if anyone has any idea whether there is an element available and if they know where I can obtain a tank/cylinder that may suit.

Thanks, again.

 

[DeltaT2]

Why not fit a 15Ltr x 3KW water heater mate? Are you living in the UK?

 

[ITNZ]

Hi, thanks for the response.

The caravan is sited where the max fuse size is 10A - yes, just 10A!!!
The reason for the lesser wattage element is so I don't continually blow the trip switch at the post. Rather annoying, but to give me a bit of leeway, I thought that with all the other things vying for power, I'd just lower the wattage.

BUT... after saying that, if you know of a 15L tank and a 3KW element that fits it and it's ready to go, I can certainly use it as a serious contender - so far, I've either got my useless 5L 480W or your suggestion - no real competition so far! 15L will take around 15 mins to heat up, so it''s not out of the question.
Thanks for the suggestion.

 

[ITNZ]

Sorry, forgot to mention, yes I am in the UK.

 

[DeltaT2]

Is there only 10A for the whole caravan? or just the water heater?
Why not fit a small Propane water heater from a gas cylinder?

If it's 240Vac @ 10A for the water heater only, you can have 2.4KW water heater.

 

[ITNZ]

Hi,

It's only 10A for whole caravan - I don't think that it is too clever, but then I suppose power is expensive and it is their way of stopping people using excessive power with air conditioners etc.

I prefer not to use LPG at this stage, although I have seen a few possibilities, but I'm looking for an electric solution for the moment.

Thanks for your help.

 

[ITNZ]

Since 240V goes into 10A and lets me have 2.4KW, it'll strech the fusible capabilities if something else is powered up. I suppose if I had the option of a 2.4KW element AND an additional 1KW-ish one I could juggle it around for fast heat up or gentle replenishing.
Is there a tank that takes two elements or an element that has two settings?
Is there a standard fitting for elements?
Am I able to obtain this fitting so I can either look for it or get one soldered into a custom tank?
Are there several types of fitting?

Thanks

 

[DeltaT2]

Likes of these are available with 2KW elements, that would be about your cheapest option.
http://www.ariston.co.uk/products/water-heaters/europrisma/0000000009/

But it'll not leave much juice for anything else!!
Gas is the only way to go mate & you can have a half decent hot water flow rate etc with a gas water heater.

 

[ITNZ]

Gas seems to be the very best solution.
I now have the choice of two solutions:
Gas - there are plenty of systems out there to accomodate this.
Electric - the Ariston heaters seem to be good for what I need
The only consideration I now have to determine is: Is the power "swapping" going to be a problem, or should the gas solution prevail due to its better all round!

Thanks for all the input and I have sufficient information now to either make a good decision or a bad one!!

 

[DeltaT2]

My pleasure, glad I can be of some help.