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Using batteries to heat up water


I think the gadget in the amazon link above is only for drawing or
propelling water without heating up the water, right?  You'll still need
sort of propane or a heating element that connects to a heat source
(car cigarette burner or a flame or an oven), right?

The link below indicates it's possible to heat up water with just batteries:
anyone know where I can buy a ready-made water heater (for shower)
that operates purely on batteries?
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2 Solutions
sunhuxAuthor Commented:
The water at my place reaches 26-27 Celcius at night
& I just need to heat up the water to 35-36 Celcius for
John HurstBusiness Consultant (Owner)Commented:
The first link is for a non-heated pump. That is all it does.

The second link is experimental and it would appear it needs a lot of battery power to heat the water.

I have not seen a battery operated water heater (because of the high level of wattage to heat water). Someone may have seen one but I have not.

Solar powered water heaters might be a lot more effective for you if you normally have lots of sunshine.

.... Thinkpads_User
sunhuxAuthor Commented:
Thanks Thinpads_User, I was contemplating that as well:
it rains about a quarter of the time here though it's a
tropical climate here.

Even a heating element that's battery operated would
meet my need:

But I guess at that price, I might as well a couple of the solar-
powered thermos below which will self-seal the hot water &
I could pour them out into the pail at night:

John HurstBusiness Consultant (Owner)Commented:
The battery one looked like it was using a car battery and need a 50 amp charger. So as I noted, the battery heater uses lots of power.

The other one looks interesting however, but I have never used such a thing.

.... Thinkpads_User
John HurstBusiness Consultant (Owner)Commented:
@sunhux - Thank you very much and I was happy to help. It was an interesting discussion indeed.

... Thinkpads_User
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