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Dupa

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Joined: 09/12/2009
Location: United States
Posts: 27

Posted: 08:04pm 08 Dec 2009

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Anyone know where I could get some DC water heater elements? I would like to set my dump charge up to generated heat in the water of my outdoor wood boiler that currently heats my house and hot water.

I is a injenear

KiwiJohn
Guru

Joined: 01/12/2005
Location: New Zealand
Posts: 691

Posted: 08:21pm 08 Dec 2009

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A pure resistance water heater (is there any other kind?) will not be bothered about AC/DC. Just work out the voltage and current concerned and use Ohm's Law to choose a suitable resistance and wattage for your heater. Or just post the figures here and I am sure there are members who can give the answers.

Edited by KiwiJohn 2009-12-10

KarlJ

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Joined: 19/05/2008
Location: Australia
Posts: 1178

Posted: 12:10pm 09 Dec 2009

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check out the article from the homepage on encapsulated resistors.

They are free (used dishwashers is my preferred)

Cut to length as required for the dump Volts x Volts / Ohms = Watts the resistor will use.
Easy unless you are immersing it in water then will need some more effort to keep water out of where is shouldnt be.

Luck favours the well prepared

Dupa

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Joined: 09/12/2009
Location: United States
Posts: 27

Posted: 01:17pm 09 Dec 2009

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Thanks guys.
Sounds like it should be a no brainer.
I need to hunt down the kind that thread into a PTF (pipe fitting). My tank has plugged coonections at 2" that will work great.

I is a injenear

Downwind

Guru

Joined: 09/09/2009
Location: Australia
Posts: 2333

Posted: 03:40pm 09 Dec 2009

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You can bend an element and silver solder it into a 2" ball plug with 2 holes drilled in it for the element to pass through.
If you can find a long element with a suitable bend already in it. than you could shorten it up to suit your wattage requirements.
It will make little difference if it is out of a stove, dishwasher urn or what ever but i do think the dishwasher and likes have a slightly heavier outer casing.

Pete.

Sometimes it just works

Dupa

Newbie

Joined: 09/12/2009
Location: United States
Posts: 27

Posted: 04:13pm 09 Dec 2009

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Thanks Pete
I didn't know they could be bent. I was thinking I had to find somthing that was pre-made.
Good info.

I is a injenear

birdhouse
Regular Member

Joined: 27/01/2009
Location: United States
Posts: 63

Posted: 03:03am 10 Dec 2009

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dupa- if you have more money than time you can get them herehere

but making one yourself might be more fun!

good luck!

i pee more than once before flushing, and don't have to flush at all up at the ranch!

Dupa

Newbie

Joined: 09/12/2009
Location: United States
Posts: 27

Posted: 12:56pm 11 Dec 2009

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Thanks birdhouse
That exactly what I was looking for.
And your right. I would rather make them.
Not only that I somewhat pride myself on every attempt of free energy. Even the build.

I is a injenear

zippy998
Newbie

Joined: 14/12/2009
Location: United Kingdom
Posts: 4

Posted: 09:46pm 16 Dec 2009

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Dupa said Anyone know where I could get some DC water heater elements? I would like to set my dump charge up to generated heat in the water of my outdoor wood boiler that currently heats my house and hot water.

have a look on ebay there are 24v and 48v

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