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Old 29-03-2018, 10:47   #16
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Re: 12V water tank heater

Aquarium heater glass could ruin your day if the glass cracked. Use a 12 volt wire to wrap around a couple pipes immersed in the water tank with waterproof tape around it. The water will circulate to keep the water warm enough for you. You can also use a 1 or 2 inch pipe to circulate the water from inside the tank outside through/in front of a heater to heat a feed back into the tank.
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Old 29-03-2018, 10:55   #17
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Re: 12V water tank heater

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Originally Posted by SouthernPride View Post
Aquarium heater glass could ruin your day if the glass cracked. Use a 12 volt wire to wrap around a couple pipes immersed in the water tank with waterproof tape around it. The water will circulate to keep the water warm enough for you. You can also use a 1 or 2 inch pipe to circulate the water from inside the tank outside through/in front of a heater to heat a feed back into the tank.

their design is way past 'if' it cracks, the tubes are pyrex glass
Life doesnt need to be an experiment, research the equipment
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Old 29-03-2018, 11:53   #18
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Re: 12V water tank heater

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Can I ask why you need to warm your drinking water?

Len
(1) Possibility of it freezing. Tank is in the engine space, not the cabin.

(2) Ever try rinsing toothpaste out of your mouth with 33-degree water? Not much fun.

As some have pointed out, yes, raising the water temp a significant amount requires a lot of power, with potential to drain the batteries. But with insulation around the tank, and turning on the heater on sunny days (plenty of power from solar panels) the water in the tank ought to hold its temp fairly well overnight. And if there are a few cloudy days when I can't run the heater much, I'll be satisfied just to keep it from freezing. Cloudy days in winter tend to be warmer anyways. I don't need to raise 40 gallons from 33 degrees to 50 in an hour or two!
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Old 29-03-2018, 12:40   #19
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Re: 12V water tank heater

I have a solution . . .Click image for larger version

Name:	FB_IMG_1522326445301.jpg
Views:	73
Size:	40.0 KB
ID:	167341
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Old 29-03-2018, 13:09   #20
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Re: 12V water tank heater

A crude passive solar unit is very cheap and easy to rig
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Old 29-03-2018, 15:55   #21
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Re: 12V water tank heater

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Originally Posted by kenbo View Post
Look at farm and ranch supply outfits. Farmers and ranchers have the same issue, keeping the water trough from freezing. Most of their options will be 12v you can pick your amperage.
Kenbo you beat me to it!! Farm water tanks for the animals require heaters...that is if you are beyond HOPE, BC.
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Old 29-03-2018, 16:20   #22
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Re: 12V water tank heater

Google "Wolverine heaters"
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Old 29-03-2018, 16:22   #23
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Re: 12V water tank heater

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I have a solution . . .Attachment 167341
Fraught with problems: Hows does one make a mechanically strong connection to a cats bum? How does 1 cat- power translate to HP or KW? How do you feed a spinning cat? Not to mention what happens to the poo? Does the cat continue to spin if it dies?

....
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Old 29-03-2018, 16:58   #24
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Re: 12V water tank heater

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Originally Posted by belizesailor View Post
Fraught with problems: Hows does one make a mechanically strong connection to a cats bum? How does 1 cat- power translate to HP or KW? How do you feed a spinning cat? Not to mention what happens to the poo? Does the cat continue to spin if it dies?

....


Back to the poo. Is this like poo and a fan?
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