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Reviews on Battery powered water shower : is this feasible?

A few models of electrical heater shower in my house
measured at extremely high energy consumption.

I'm thinking of using solar or battery operated ones below:
http://www.amazon.com/Coghlans-9965-Camp-Shower/dp/B000VNITQS/ref=pd_sim_sg_2
http://www.amazon.com/ZODI-Outback-Battery-Powered-Shower/dp/B002L9A4BI/ref=sr_1_1?ie=UTF8&qid=1386942919&sr=8-1&keywords=Zodi+battery+camp+hot+shower

Anyone used them before & do they actually work (I mean
giving reasonable water outflows with temperature of 30 to
40 celcius) ?

The solar model above even claims that it makes the water scalding
hot & I'm fine with this because I can store the water in thermo flasks
& pour them out at night for a bath.

I live in tropical country where there's sun most of the days but it gets
rather cold to take a shower direct from tap at night.
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sunhux
Asked:
sunhux
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2 Solutions
 
Steven HarrisPresidentCommented:
A few models of electrical heater shower in my house measured at extremely high energy consumption.

What types of heater?  What type of usage?

Have you looked into Tankless Water Heaters?



I have used the solar camp shower on occasions where no running water was available during camping excursions, and a few times at the deer camp.  Just to make sure you are aware, there is no controlling the temperature and this is not 'solar' in the means of solar panels...  This is basically a black vinyl/plastic bag that is filled with water and left in the sun to warm up.

At our deer camp, we wound up using a 55 gal storage drum with an immersion heater.  I believe we came out to about $80 total, including piping.
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sunhuxAuthor Commented:
My  shower heaters are Sunshine & Champs brands & they're
tankless.  When I used Efergy (got it from Amazon) to measure,
each of them consume something like 1850-2000 Watt.

My 4-tick 410 litre fridge measures only 4.2W & the older
(no tick) 580 litre fridge measures 17W only.

Should have noticed for that low-price, the black bags are
non-solar cells.

How about the items below, do they really work?

http://www.amazon.com/Portable-Water-Heater-SunRocket-Sunlight/dp/B0098IW9JU/ref=sr_1_2?ie=UTF8&qid=1386860981&sr=8-2&keywords=solar+powered+heater

http://www.amazon.com/ZODI-Outback-Battery-Powered-Shower/dp/B002L9A4BI/ref=sr_1_1?ie=UTF8&qid=1386942919&sr=8-1&keywords=Zodi+battery+camp+hot+shower
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Steven HarrisPresidentCommented:
I have never used those, but I am sure they work to me degree.  If you are looking for a permanent or semi-permanent solution, I'm not sure these will be what you are looking for.  The amount of water that they will heat at one time is very minimal and will take hours to warm up water.
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