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Default How can those Chinese water heaters work?

Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas?
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Default How can those Chinese water heaters work?

Bruce Farquhar wrote

Those cheap Chinese water heaters which are simply two plates
of metal, one on live and one on neutral, how can they work?


The current flows thru the water and that heats it.

Because the resistivity of tap water apparently
varies from 2 to 200 ohm metres. That's a
range of 100 fold in possible power output.


That only affect how long it takes to heat the water.

I assume the resistivity changes due to
impurities like lime in hard water areas?


Yep.
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Default CAUTION!!! Birdbrain, the Abnormal Pathological Attention Whore, Strikes, AGAIN!

On Thu, 29 Nov 2018 20:30:11 -0000, Birdbrain Macaw (now "James Wilkinson",
"Steven ******", etc.), the pathological resident idiot and attention whore
of all the uk ngs, blathered again:

FLUSH the abnormal sociopathic attention whore's latest idiotic
attention-baiting bull**** unread again

--
about Birdbrain Macaw's (now "James Wilkinson" LOL)
trolling:
"He is a well known attention seeking troll and every reply you
make feeds him.
Starts many threads most of which die quick as on the UK groups anyone
with sense Kill filed him ages ago which is why he now cross posts to
the US groups for a new audience.
This thread was unusual in that it derived and continued without him
to a large extent and his silly questioning is an attempt to get
noticed again."
MID:

--
ItsJoanNotJoann addressing Birdbrain Macaw's (now "James Wilkinson" LOL):
"You're an annoying troll and I'm done with you and your
stupidity."
MID:

--
AndyW addressing Birdbrain:
"Troll or idiot?...
You have been presented with a viewpoint with information, reasoning,
historical cases, citations and references to back it up and wilfully
ignore all going back to your idea which has no supporting information."
MID:

--
Phil Lee adressing Birdbrain Macaw:
"You are too stupid to be wasting oxygen."
MID:

--
Phil Lee describing Birdbrain Macaw:
"I've never seen such misplaced pride in being a ****ing moronic motorist."
MID:

--
Tony944 addressing Birdbrain Macaw:
"I seen and heard many people but you are on top of list being first class
ass hole jerk. ...You fit under unconditional Idiot and should be put in
mental institution.
MID:

--
Pelican to Birdbrain Macaw:
"Ok. I'm persuaded . You are an idiot."
MID:

--
DerbyDad03 addressing Birdbrain Macaw (now "James Wilkinson" LOL):
"Frigging Idiot. Get the hell out of my thread."
MID:

--
Kerr Mudd-John about Birdbrain Macaw (now "James Wilkinson" LOL):
"It's like arguing with a demented frog."
MID:

--
Mr Pounder Esquire about Birdbrain Macaw (now "James Wilkinson" LOL):
"the **** poor delivery boy with no hot running water, 11 cats and
several parrots living in his hovel."
MID:

--
Rob Morley about Birdbrain:
"He's a perennial idiot"
MID: 20170519215057.56a1f1d4@Mars

--
JoeyDee to Birdbrain
"I apologize for thinking you were a jerk. You're just someone with an IQ
lower than your age, and I accept that as a reason for your comments."
MID: l-september.org

--
Sam Plusnet about Birdbrain (now "James Wilkinson Sword" LOL):
"He's just desperate to be noticed. Any attention will do, no matter how
negative it may be."
MID:

--
asking Birdbrain:
"What, were you dropped on your head as a child?"
MID:

--
Christie addressing endlessly driveling Birdbrain Macaw (now "James
Wilkinson" LOL):
"What are you resurrecting that old post of mine for? It's from last
month some time. You're like a dog who's just dug up an old bone they
hid in the garden until they were ready to have another go at it."
MID:

--
Mr Pounder's fitting description of Birdbrain Macaw:
"You are a well known fool, a tosser, a pillock, a stupid unemployable
sponging failure who will always live alone and will die alone. You will not
be missed."
MID:

--
Richard to pathetic ****** Hucker:
"You haven't bred?
Only useful thing you've done in your pathetic existence."
MID:

--
about Birdbrain (now "James Wilkinson" LOL):
""not the sharpest knife in the drawer"'s parents sure made a serious
mistake having him born alive -- A total waste of oxygen, food, space,
and bandwidth."
MID:

--
Mr Pounder exposing sociopathic Birdbrain:
"You will always be a lonely sociopath living in a ******** with no hot
running water with loads of stinking cats and a few parrots."
MID:

--
francis about Birdbrain (now "James Wilkinson" LOL):
"He seems to have a reputation as someone of limited intelligence"
MID:

--
Peter Moylan about Birdbrain (now "James Wilkinson" LOL):
"If people like JWS didn't exist, we would have to find some other way to
explain the concept of "invincible ignorance"."
MID:
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Default How can those Chinese water heaters work?

On Thu, 29 Nov 2018 20:30:11 -0000, "Bruce Farquhar"
wrote:

Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas?


It does not seem practical. what are the plates, I suppose AC would
limit electrochemical effects, but it does not sound practical.

As far as the resistance goes, I suppose with a mineral concentration
the resistance would fall with temperature, but at 100C the bubbles
would provide negative feedback.

Proof could be obtained by measuring the temperature. I would guess it
never goes over 100C :-)

AB

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Default Lonely Psychotic Senile Ozzie Troll Alert! LOL

On Fri, 30 Nov 2018 08:10:43 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again:

FLUSH the two abnormal trolls' latest troll**** unread

....and much better air in here again!

--
Norman Wells addressing senile Rot:
"Ah, the voice of scum speaks."
MID:


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Default Troll-feeding Senile IDIOT Alert!

On Thu, 29 Nov 2018 22:13:50 +0000, Archibald Tarquin Blenkinsopp, the
notorious, troll-feeding, senile idiot, blathered again:

It does not seem practical. what are the plates, I suppose AC would
limit electrochemical effects, but it does not sound practical.

As far as the resistance goes, I suppose with a mineral concentration
the resistance would fall with temperature, but at 100C the bubbles
would provide negative feedback.

Proof could be obtained by measuring the temperature. I would guess it
never goes over 100C :-)

AB


Another senile idiot who couldn't resist swallowing the unwashed Scottish
****** and attention whore's idiotic bait, hook, line and sinker again!
tsk
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Default How can those Chinese water heaters work?

On Thu, 29 Nov 2018 21:10:43 -0000, Rod Speed wrote:

Bruce Farquhar wrote

Those cheap Chinese water heaters which are simply two plates
of metal, one on live and one on neutral, how can they work?


The current flows thru the water and that heats it.

Because the resistivity of tap water apparently
varies from 2 to 200 ohm metres. That's a
range of 100 fold in possible power output.


That only affect how long it takes to heat the water.

I assume the resistivity changes due to
impurities like lime in hard water areas?


Yep.


My point is, a 2.5kW heater could end up 25W and be totally useless. A factor of 100 is a LOT.
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Default How can those Chinese water heaters work?

On Thu, 29 Nov 2018 22:13:50 -0000, Archibald Tarquin Blenkinsopp wrote:

On Thu, 29 Nov 2018 20:30:11 -0000, "Bruce Farquhar"
wrote:

Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas?


It does not seem practical. what are the plates, I suppose AC would
limit electrochemical effects, but it does not sound practical.


They do seem to work - check out bigclive's videos on youtube.

As far as the resistance goes, I suppose with a mineral concentration
the resistance would fall with temperature,


I've not measured different waters as I only have access to Scottish tapwater and de-ionised water. It would be interesting for people around the world to measure the resistivity of their own tapwater.

but at 100C the bubbles
would provide negative feedback.


Yes bubbling does make the current fall.

Proof could be obtained by measuring the temperature. I would guess it
never goes over 100C :-)

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Default How can those Chinese water heaters work?



"Bruce Farquhar" wrote in message
news
On Thu, 29 Nov 2018 21:10:43 -0000, Rod Speed
wrote:

Bruce Farquhar wrote

Those cheap Chinese water heaters which are simply two plates
of metal, one on live and one on neutral, how can they work?


The current flows thru the water and that heats it.

Because the resistivity of tap water apparently
varies from 2 to 200 ohm metres. That's a
range of 100 fold in possible power output.


That only affect how long it takes to heat the water.

I assume the resistivity changes due to
impurities like lime in hard water areas?


Yep.


My point is, a 2.5kW heater could end up 25W and be totally useless.


Sure, but that's the risk you take with that approach but it has other
advantages, most obviously the price and lack of maintenance.

A factor of 100 is a LOT.


But isnt actually anything like that great in real life with tap water.

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Default How can those Chinese water heaters work?

On Fri, 30 Nov 2018 01:22:13 -0000, Rod Speed wrote:



"Bruce Farquhar" wrote in message
news
On Thu, 29 Nov 2018 21:10:43 -0000, Rod Speed
wrote:

Bruce Farquhar wrote

Those cheap Chinese water heaters which are simply two plates
of metal, one on live and one on neutral, how can they work?

The current flows thru the water and that heats it.

Because the resistivity of tap water apparently
varies from 2 to 200 ohm metres. That's a
range of 100 fold in possible power output.

That only affect how long it takes to heat the water.

I assume the resistivity changes due to
impurities like lime in hard water areas?

Yep.


My point is, a 2.5kW heater could end up 25W and be totally useless.


Sure, but that's the risk you take with that approach but it has other
advantages, most obviously the price and lack of maintenance.


I like bigclive's warning that it's undesirable to use it in the baby's bath while the baby is in it.

A factor of 100 is a LOT.


But isnt actually anything like that great in real life with tap water.


I wonder what real life values are? The 2 to 200 ohm metres was from a google search and it related to "drinking water", without any further specifications.


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Default How can those Chinese water heaters work?



"Bruce Farquhar" wrote in message
news
On Fri, 30 Nov 2018 01:22:13 -0000, Rod Speed
wrote:



"Bruce Farquhar" wrote in message
news
On Thu, 29 Nov 2018 21:10:43 -0000, Rod Speed
wrote:

Bruce Farquhar wrote

Those cheap Chinese water heaters which are simply two plates
of metal, one on live and one on neutral, how can they work?

The current flows thru the water and that heats it.

Because the resistivity of tap water apparently
varies from 2 to 200 ohm metres. That's a
range of 100 fold in possible power output.

That only affect how long it takes to heat the water.

I assume the resistivity changes due to
impurities like lime in hard water areas?

Yep.

My point is, a 2.5kW heater could end up 25W and be totally useless.


Sure, but that's the risk you take with that approach but it has other
advantages, most obviously the price and lack of maintenance.


I like bigclive's warning that it's undesirable to use it in the baby's
bath while the baby is in it.


Dunno, it would work fine as a retrospective abortion when
the bugger is crying all the time in the middle of the night.

A factor of 100 is a LOT.


But isnt actually anything like that great in real life with tap water.


I wonder what real life values are?


Dunno.

The 2 to 200 ohm metres was from a google search and it related to
"drinking water", without any further specifications.


Yeah, but bore water particularly is drinking
water but unusual for most consumers.

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Default How can those Chinese water heaters work?

Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of metal,
one on live and one on neutral, how can they work?* Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output.* I assume the
resistivity changes due to impurities like lime in hard water areas?


They used to make jug elements like that
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Default Troll-feeding Senile Ozzietard Alert!

On Fri, 30 Nov 2018 18:35:24 +1100, FMurtz, the brain damaged, notorious,
troll-feeding, senile idiot, blathered:


They used to make jug elements like that


Looks like gay Scottish sow has a firm fan base of senile idiots that will
keep sucking him off whenever he wants to be sucked of by you seniles! BG
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Default Lonely Psychotic Senile Ozzie Troll Alert! LOL

On Fri, 30 Nov 2018 13:23:35 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again:

FLUSH the two prize idiots' usual idiotic drivel

--
Cursitor Doom about Rot Speed:
"I'm not the least surprised. The man is a conspicuous and unashamed
ignoramus."
MID:
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Default How can those Chinese water heaters work?

On 29/11/2018 20:30, Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of metal,
one on live and one on neutral, how can they work?* Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output.* I assume the
resistivity changes due to impurities like lime in hard water areas?


They work best with Chinese water which is full of crap:-)

Mike


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Default How can those Chinese water heaters work?

On 11/30/2018 6:51 AM, Muddymike wrote:
On 29/11/2018 20:30, Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of
metal, one on live and one on neutral, how can they work?* Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output.* I assume the
resistivity changes due to impurities like lime in hard water areas?


They work best with Chinese water which is full of crap:-)

Mike

When I was a kid, we had a vaporizer that used 2 carbon rods, which were
in a Bakelite tube, with the whole thing submerged in a large water
bowl. It worked, but, even though we had city water (Chicago area), the
carbon rods would get coated with minerals and would have to be cleaned
from time to time. Otherwise, the output would be very low.
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Default Troll-feeding Senile IDIOT Alert!

On Fri, 30 Nov 2018 11:51:37 +0000, Muddymike, yet another mentally
challenged, troll-feeding, senile idiot, blathered:


They work best with Chinese water which is full of crap:-)

Mike


....and yet another senile idiot who can't resist sucking the gay Scottish
****** off! BG
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Default How can those Chinese water heaters work?

On 29/11/2018 20:30, Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of metal,
one on live and one on neutral, how can they work?* Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output.* I assume the
resistivity changes due to impurities like lime in hard water areas?


Big Clive did a review of these a couple of years ago
https://www.youtube.com/watch?v=EViyccc2t9w

and John Ward more recently
https://www.youtube.com/watch?v=0BPCife3tWs
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Default Troll-feeding Senile IDIOT Alert!

On Fri, 30 Nov 2018 15:05:20 +0000, Andy Bennet, yet another mentally
deficient, troll-feeding, senile idiot, blathered:

Big Clive did a review of these a couple of years ago
https://www.youtube.com/watch?v=EViyccc2t9w

and John Ward more recently
https://www.youtube.com/watch?v=0BPCife3tWs


At least you couldn't suck THEIR cocks, you senile sucker of troll cock!
tsk
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Default How [in God's name] can those Chinese water heaters work?

On Fri, 30 Nov 2018 15:07:45 -0600, LO AND BEHOLD; Sam E
determined that the following was of
great importance and subsequently decided to freely share it with us in
:

On 11/30/18 12:27 PM, Sir Gregory Hall, Esq. wrote:
On Fri, 30 Nov 2018 13:24:24 -0800, 💩
wrote: ...
No, Stupid. That's what YOU said, when you claimed cold "radiated" from
your window (you probably only have one). Cold is defined as the
absence of heat, while heat is defined simply as heat. You know
nothing about even basic physics, and you know nothing about electrical
wiring, and you think your alternating current is operating at 1 Hz.
Your lights must literally throb on and off at that rate.

It would be 2Hz, since you get light on both half cycles.

leave it to 50 years of experience and slapping his own back guy for not knowing anything fundamental about the physics of electricity to get that one wrong.

for a similar reason transformer line hum is usually 120Hz and not 60.

whadda "brainiac".

For a guy who self-identifies as "smart," you sure are dumb... not to
mention gay.
LOL and shuddup!

--
[THIS POAST HAS PASSED TRIMCHECK® VALIDATION]

THIS SPACE FOR RENT
https://www.youtube.com/watch?v=iB6B8jGSdLA

"Thanks to muzzies and their apologist-enablers like puppy whistle, this
seems to be the new norm in the world. It's spreading like a cancer,
and it's time we admit we're at war with pure evil. We need to put an
end to this muzzie plague, or life on Earth is going to become pure hell
everywhere. We need to get these people out of every civilized
country, and there's only one way to do it. IOW, we have to become
like them, with an emphasis on expediency over cruelty." - Checkmate (of alt.checkmate)

"Pussy Willow has just proven that Trump's crackdown on previously
unenforced immigration policies is working. We'll deal with the domestic
terrorists as needed, but we don't need to be letting the muzzie
terrorists get a foothold in our country too. One need only look at what
they're doing in Europe right now to know we're doing the right thing by
keeping them out, which is our right and our duty. - Checkmate (#1 pussy willow fan)

-

"You just made puppy whistle's sig line longer." - Janithor

-

"If I have a complaint about the (Southern Poverty) Law Center's description (of the alt-right movement), it is the phrase "heavy use of social media," which implies the alt-right is a real-world movement which uses a lot of social media. This is backwards: it is an online movement which occasionally appears in the real world. Where it gets punched." - Jason Rhode

-

"I think we should destroy every last ****ing mosque in America." - "Checkmate, DoW #1" proves for us that white males are violent in Message-ID:

-

Golden Killfile, June 2005
KOTM, November 2006
Bob Allisat Memorial Hook, Line & Sinker, November 2006
Special Ops Cody Memorial Purple Heart, November 2006
Special Ops Cody Memorial Purple Heart, September 2007
Tony Sidaway Memorial "Drama Queen" Award, November 2006
Busted Urinal Award, April 2007
Order of the Holey Sockpuppet, September 2007
Barbara Woodhouse Memorial Dog Whistle, September 2006
Barbara Woodhouse Memorial Dog Whistle, April 2008
Tinfoil Sombrero, February 2007
AUK Mascot, September 2007
Putting the Awards Out of Order to Screw With the OCD ****heads, March 2016



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Default How [in God's name] can those Chinese water heaters work?

On Friday, 30 November 2018 21:15:56 UTC, Mark Lloyd wrote:

I have wished that sound was the absence of silence. That is, you could
place a silence-emitting device next to someone, and then couldn't hear
the snoring.


That technology has been around for a long time.

John
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Default How can those Chinese water heaters work?

Andy Bennet wrote:
On 29/11/2018 20:30, Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of
metal, one on live and one on neutral, how can they work?* Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output.* I assume the
resistivity changes due to impurities like lime in hard water areas?


Big Clive did a review of these a couple of years ago
https://www.youtube.com/watch?v=EViyccc2t9w

and John Ward more recently
https://www.youtube.com/watch?v=0BPCife3tWs

Big clive is more accurate, the other nong was making factually
incorrect statements.
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Default How can those Chinese water heaters work?



"FMurtz" wrote in message
...
Andy Bennet wrote:
On 29/11/2018 20:30, Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of metal,
one on live and one on neutral, how can they work? Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output. I assume the
resistivity changes due to impurities like lime in hard water areas?


Big Clive did a review of these a couple of years ago
https://www.youtube.com/watch?v=EViyccc2t9w

and John Ward more recently
https://www.youtube.com/watch?v=0BPCife3tWs


Big clive is more accurate, the other nong was making factually incorrect
statements.


And has a much more irritating style.

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Default How [in God's name] can those Chinese water heaters work?

On Friday, 30 November 2018 18:24:36 UTC, Checkmate wrote:
You know nothing about
even basic physics, and you know nothing about electrical wiring, and you
think your alternating current is operating at 1 Hz. Your lights must
literally throb on and off at that rate. For a guy who self-identifies
as "smart," you sure are dumb... not to mention gay.


1 certainly hertz if 1 touches it.
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Default How can those Chinese water heaters work?

On 30/11/2018 01:41, Bruce Farquhar wrote:

I like bigclive's warning that it's undesirable to use it in the baby's
bath while the baby is in it.


Here's his follow-up, starting with distilled water then adding a dash
of salt.

https://www.youtube.com/watch?v=qQssSAf6DPA


--
Reentrant


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Default Troll-feeding Senile IDIOT Alert!

On Sat, 1 Dec 2018 11:23:17 +0000, Reentrant, yet another brain damaged,
troll-feeding, senile idiot, blathered:

Here's his follow-up, starting with distilled water then adding a dash
of salt.


Looks like the abnormal Scottish ******, troll and attention whore got a
"new" follower! BG
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Default How can those Chinese water heaters work?

On 30/11/2018 15:05, Andy Bennet wrote:
On 29/11/2018 20:30, Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of
metal, one on live and one on neutral, how can they work?* Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output.* I assume the
resistivity changes due to impurities like lime in hard water areas?


Big Clive did a review of these a couple of years ago
https://www.youtube.com/watch?v=EViyccc2t9w


I can't believe I sat through that and nothing went bang.
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Default How [in God's name] can those Chinese water heaters work?

On Sunday, 2 December 2018 11:38:52 UTC, MIT Bob wrote:
On 12/1/18 4:59 PM, The Natural Philosopher wrote:
On 01/12/2018 17:18, Sam E wrote:
On 11/30/18 10:25 PM, Checkmate wrote:

It would be 2Hz, since you get light on both half cycles.

It would be 1 Hz, two throbs.

Each throb is a cycle, since the light is the same regardless of the
current direction. A diode in the circuit makes it 1Hz.

but 4 diodes make it 2Hz



Only if it's 2-phase.


1 & 2 phase both produce the same number of shocks per second for a given frequency


NT
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Default How [in God's name] can those Chinese water heaters work?

On 02/12/2018 11:38, MIT Bob wrote:
On 12/1/18 4:59 PM, The Natural Philosopher wrote:
On 01/12/2018 17:18, Sam E wrote:
On 11/30/18 10:25 PM, Checkmate wrote:

It would be 2Hz, since you get light on both half cycles.

It would be 1 Hz, two throbs.

Each throb is a cycle, since the light is the same regardless of the
current direction. A diode in the circuit makes it 1Hz.

but 4 diodes make it 2Hz



Only if it's 2-phase.


no, single phase.


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Default How [in God's name] can those Chinese water heaters work?

On 02/12/2018 14:59, % wrote:
On 2018-12-02 7:44 a.m., Sir Gregory Hall,* Esq. wrote:
On Sun, 2 Dec 2018 03:11:33 -0800, Checkmate
wrote:

...

We've already defined the frequency as 1 Hz.* That means the time
between
a positive peek and a negative valley is half a second.* Two throbs.


Throb THIS (the sound of jeans' unzipping).

guys in their 80 in jeans look so stupid ,
it's obvious what they're trying to do


Cover up their legs?


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Default How [in God's name] can those Chinese water heaters work?

On Sun, 02 Dec 2018 15:31:53 -0500, Sir Gregory Hall, Esq. wrote:

On Sun, 2 Dec 2018 15:02:25 -0800, Checkmate
wrote:

...

In the Sixties, we called it "cycles" but they needed to honor someone,
so they changed it to Hertz, witch the average novice doesn't
understand.


I thought Hertz was what happens to your brain when you try to compete
with me in the arena of ideas!


Do they call that the Hall Effect?

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Default How [in God's name] can those Chinese water heaters work?

On Fri, 30 Nov 2018 22:01:58 -0000, wrote:

On Friday, 30 November 2018 21:15:56 UTC, Mark Lloyd wrote:

I have wished that sound was the absence of silence. That is, you could
place a silence-emitting device next to someone, and then couldn't hear
the snoring.


That technology has been around for a long time.


Noise cancelling technology. It doesn't actually emit silence or absorb sound, but emits a sound which cancels the existing sound. Like making waves in water to cancel the others.
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Default How [in God's name] can those Chinese water heaters work?

On Fri, 30 Nov 2018 21:16:10 -0000, Sir Gaygory's Owner's Owner 🐶笛 wrote:


On Fri, 30 Nov 2018 15:07:45 -0600, LO AND BEHOLD; Sam E
determined that the following was of
great importance and subsequently decided to freely share it with us in
:
On 11/30/18 12:27 PM, Sir Gregory Hall, Esq. wrote:
On Fri, 30 Nov 2018 13:24:24 -0800, 💩
wrote: ...
No, Stupid. That's what YOU said, when you claimed cold "radiated" from
your window (you probably only have one). Cold is defined as the
absence of heat, while heat is defined simply as heat. You know
nothing about even basic physics, and you know nothing about electrical
wiring, and you think your alternating current is operating at 1 Hz.
Your lights must literally throb on and off at that rate.

It would be 2Hz, since you get light on both half cycles.

leave it to 50 years of experience and slapping his own back guy for not knowing anything fundamental about the physics of electricity to get that one wrong.

for a similar reason transformer line hum is usually 120Hz and not 60.

whadda "brainiac".


Actually you just explained why he was right.
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Default How can those Chinese water heaters work?

On Sat, 01 Dec 2018 12:32:26 -0000, R D S wrote:

On 30/11/2018 15:05, Andy Bennet wrote:
On 29/11/2018 20:30, Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of
metal, one on live and one on neutral, how can they work? Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output. I assume the
resistivity changes due to impurities like lime in hard water areas?


Big Clive did a review of these a couple of years ago
https://www.youtube.com/watch?v=EViyccc2t9w


I can't believe I sat through that and nothing went bang.


Yes, explosions are much more fun.
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On Fri, 30 Nov 2018 15:11:03 -0000, trader_4 wrote:

On Friday, November 30, 2018 at 7:35:51 AM UTC-5, Art Todesco wrote:
On 11/30/2018 6:51 AM, Muddymike wrote:
On 29/11/2018 20:30, Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of
metal, one on live and one on neutral, how can they work? Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output. I assume the
resistivity changes due to impurities like lime in hard water areas?

They work best with Chinese water which is full of crap:-)

Mike

When I was a kid, we had a vaporizer that used 2 carbon rods, which were
in a Bakelite tube, with the whole thing submerged in a large water
bowl. It worked, but, even though we had city water (Chicago area), the
carbon rods would get coated with minerals and would have to be cleaned
from time to time. Otherwise, the output would be very low.


They still make those AFAIK. I never saw ones with carbon rod, only steel.
I have one, it is a couple decades old.

I've never seen one of these Chinese water heaters they are talking about,
but obviously they work on the same principle. Typical water has enough
minerals that it will conduct. It also simplifies the design, you don't
need over temp limit cutoffs if it runs with no water and the like.
have one


But since the designer has no idea of the mineral composition of the water you're going to use, the output power could vary by a factor of 100. So you might buy one that's capable of 2kW and find you get a measly and utterly useless 20W.


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Default How can those Chinese water heaters work?

On Fri, 30 Nov 2018 07:35:24 -0000, FMurtz wrote:

Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of metal,
one on live and one on neutral, how can they work? Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output. I assume the
resistivity changes due to impurities like lime in hard water areas?


They used to make jug elements like that


And then the health and softy folk ruined it all.
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Default How can those Chinese water heaters work?



"William Gothberg" wrote in message
news
On Fri, 30 Nov 2018 07:35:24 -0000, FMurtz wrote:

Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of metal,
one on live and one on neutral, how can they work? Because the
resistivity of tap water apparently varies from 2 to 200 ohm metres.
That's a range of 100 fold in possible power output. I assume the
resistivity changes due to impurities like lime in hard water areas?


They used to make jug elements like that


And then the health and softy folk ruined it all.


No they didn't. They arent very viable because the
result you get depends on the conductivity of the
water. The heater type work much better.

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Default Lonely Psychotic Senile Ozzie Troll Alert! LOL

On Sat, 29 Dec 2018 08:06:38 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again:



No



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