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TOPIC: Aquaroll - Heated?

Aquaroll - Heated? 7 months 3 days ago #450241

  • Buckman
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If you use a fish tank heater to warm the water to about 18 - 20C then your shower should last longer as the cold water replacing the hot water will not drop the temperature of the hot water as much. You could always invest in an "Alde Flow Continuous Hot Water" system.
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Aquaroll - Heated? 7 months 3 days ago #450243

  • VicMallows
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The time when this would be really useful is on no-facillity no-EHU sites, so I think you should be looking at solar water heating solutions :) A panel of around 2 sq ft propped up against the aquaroll and connected top and bottom should work by gravity circulation and would easily preheat the water ..... as long as the sun shines!

Simple solar shower bags also work remarkably well .... and cost well under £10 :lol:
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Aquaroll - Heated? 7 months 3 days ago #450262

  • ProfJohnL
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I've never come across a heated water barrel, but it certainly could extend teh duration of a normal caravan shower, but the figures banded around so far don't seem to be fully thought through. In particular the suggestion of heating the barrel to 40C!

Just remember that most people shower at between 30 to 35C , which is well below the water heaters setting, and in practice you will normally need to be able to mix the heaters out put with some cold water to produce the required temperature. If teh water barrel is at 40C, then it would not bring the shower water down to a usable temperature.

The max power available in a caravan will limit the practical power of the element you could use in the barrel. The power rating does not set the temperature it only affects how quickly it would heat the quantity of water. The maximum temperature is affected by the insulation used, but also it would be wise to have some sort thermostatic control to prevent excess temperature, and of course for safety there should be a fusible thermal link to prevent runaway temperature if the thermostat fails.

You should also have some form of water level control so the elements cant run dry.

There is also the possible issue of having the raised water temperatures in teh barrel could make an ideal breeding ground for microbes such as Legionella. This should be avoided if at all possible, becasue especially Legionella is known to attack middle aged to older people sadly almost exactly the same demographic as many caravanners.

Happy caravanning :blink:
Unless I use quotes, All advice and opinions given are my own and are given in good faith. Never act on anything you read on a forum unless you can validate and verify its source and content.
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Aquaroll - Heated? 3 months 1 week ago #456896

  • Grey13
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So back on my favourite topic, van shower hot water.

May I clarify, I know many people use site facilities, others don't mind short showers and for all I know some may not shower at all, so it would be great if interested parties could restrict comments to the technical aspects and viability of getting an increased flow of hot (30 Deg C) water to the shower so it lasts a lot longer.

One way I am considering is to simply place a heating element in the Aqua Roll to raise that water from say 10 Deg C to say 30 deg C.

Have a look at these calcs and give your opinion in principle about trying this.

Reborn caravanner !
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Aquaroll - Heated? 3 months 1 week ago #456900

  • ProfJohnL
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The theory seems ok, but I do wonder how practical it is.
Unless I use quotes, All advice and opinions given are my own and are given in good faith. Never act on anything you read on a forum unless you can validate and verify its source and content.
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Aquaroll - Heated? 3 months 1 week ago #456903

  • Mel
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Way out of my expertise here, but presume it depends on an insulated aqua Roll? Also Is the assumption that the starting temperature is 10 degrees valid? Will there not be greater variation depending on ambient?
( flipppin eck that almost sounds like I know what I am talking about)
Hope you can make it work.
Mel
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May the wind be always at your back.....
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Aquaroll - Heated? 3 months 1 week ago #456909

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I’m not sure how to phrase this post so let me say at the outset I don’t mean to be rude or cause offence.
This topic has been rambling on for over 3 months with little, if any progress of achieving the goal of heating the aqua roll, one thing I will point out before I continue, it was mentioned about putting 2 aquarium heaters set at 20c in the aqua to get the water to 40c, well if you put a dozen heaters set at 20 in the Aqua roll you’d still only have water that reached 20, that’s going off my point of writing though, surely caravanning is about enjoying our leisure time in the great outdoors, with the existing shower in most caravans it will give the user at the very least a basic shower or there’s the facilities on site if going to a half decent campsite which will offer from grungy to great showering options, I’m afraid if my time could only be filled by spending 3 months trying to re invent the wheel I think by now I’d have found a more fulfilling hobby that occupies my time, I’m a great believer in each to their own but surely some topics just take up space for the sake of it.

BP
Beehpee, I live in Daventry, Northants. A caravanner and love it.
Sir Sticky.....
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Aquaroll - Heated? 3 months 1 week ago #456910

  • otherclive
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Beehpee wrote:
I’m not sure how to phrase this post so let me say at the outset I don’t mean to be rude or cause offence.
This topic has been rambling on for over 3 months with little, if any progress of achieving the goal of heating the aqua roll, one thing I will point out before I continue, it was mentioned about putting 2 aquarium heaters set at 20c in the aqua to get the water to 40c, well if you put a dozen heaters set at 20 in the Aqua roll you’d still only have water that reached 20, that’s going off my point of writing though, surely caravanning is about enjoying our leisure time in the great outdoors, with the existing shower in most caravans it will give the user at the very least a basic shower or there’s the facilities on site if going to a half decent campsite which will offer from grungy to great showering options, I’m afraid if my time could only be filled by spending 3 months trying to re invent the wheel I think by now I’d have found a more fulfilling hobby that occupies my time, I’m a great believer in each to their own but surely some topics just take up space for the sake of it.

BP

The OP has explained why he want to have longer showers in his caravan. Whilst I can’t see the need, he has every right to seek advice. You don’t have to open and read the thread if you feel it’s wasting your time.
Skoda Superb Estate 2.0 TDi SE CR 170ps DSG 4x4 carrying two Springers, Sprite Musketeer TD 2013.
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Aquaroll - Heated? 3 months 1 week ago #456911

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Beehpee wrote:
I’m not sure how to phrase this post so let me say at the outset I don’t mean to be rude or cause offence.
This topic has been rambling on for over 3 months with little, if any progress of achieving the goal of heating the aqua roll, one thing I will point out before I continue, it was mentioned about putting 2 aquarium heaters set at 20c in the aqua to get the water to 40c, well if you put a dozen heaters set at 20 in the Aqua roll you’d still only have water that reached 20, that’s going off my point of writing though, surely caravanning is about enjoying our leisure time in the great outdoors, with the existing shower in most caravans it will give the user at the very least a basic shower or there’s the facilities on site if going to a half decent campsite which will offer from grungy to great showering options, I’m afraid if my time could only be filled by spending 3 months trying to re invent the wheel I think by now I’d have found a more fulfilling hobby that occupies my time, I’m a great believer in each to their own but surely some topics just take up space for the sake of it.

BP
We've got plenty of internet paper and more than enough monitor ink.
Sometimes when you can't find anything positive to add to a thread it's better to avoid adding anything at all.
It's not compulsory for members to read every topic so if you see anything that doesn't interest you it's ok to skip past, we don't mind. ;)
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Aquaroll - Heated? 3 months 1 week ago #456916

  • paws
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I find this a very interesting topic, with many excellent and ingenious suggestions.

I'm afraid I'm not up to making calculations of heat loss/gain, flow rates and the like, but how about this suggestion...

Pour a kettle full of hot water into the nearly full aqua roll.....

adjust the temperature required by initially using less or more hot water ( kettle and saucepan of hot water etc) and then enjoy a long lasting hot shower...
Hope this helps, and of course
Happy Caravanning
paws
Last Edit: 3 months 1 week ago by paws.
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