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Rod Speed Rod Speed is offline
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Default JUICEY BRUCEY ASKS, "How does a thermocouple have enough power to operate a gas valve?"



"Fred Johnson" wrote in message
news
On Wed, 12 Dec 2018 02:46:21 -0000, Rod Speed
wrote:



"Bruce Farquhar" wrote in message
news
On Tue, 11 Dec 2018 23:57:34 -0000, Rod Speed
wrote:



"Bruce Farquhar" wrote in message
news On Tue, 11 Dec 2018 22:33:38 -0000, Rod Speed

wrote:



"Bruce Farquhar" wrote in message
news On Tue, 11 Dec 2018 20:04:33 -0000, jew pedo
wrote:

On Tue, 11 Dec 2018 19:57:22 -0000, "Bruce Farquhar"
wrote:

On Tue, 11 Dec 2018 19:48:45 -0000, Rod Speed

wrote:



"Bruce Farquhar" wrote in message
news On Tue, 11 Dec 2018 18:46:24 -0000, jew pedo
wrote:

On Tue, 11 Dec 2018 17:31:28 -0000, "Bruce Farquhar"
wrote:

On Tue, 11 Dec 2018 17:29:18 -0000, Colonel Edmund J. Burke
wrote:

On 12/11/2018 9:26 AM, Bruce Farquhar wrote:
On Tue, 11 Dec 2018 17:04:22 -0000, Colonel Edmund J. Burke
wrote:

On 12/8/2018 8:41 AM, Bruce Farquhar wrote:
On older boilers (furnaces if you're American), when the
heating
isn't actually running (eg. the thermostat says the house
is
warm
enough), there's no power to the boiler, so how does the
pilot
light
valve stay open with the tiny voltage (40mV?) and current
from
the
thermocouple?


The basic problem with english engineering is that it
hasn't
advanced
much beyond the 1500s. We superior Americans, however,
employ
the
use of electronic ignitors.

As do we with new boilers. But our stuff must last longer
because
a
lot of folk still have one with a pilot light, the only ones
that
don't are the morons that thought they should spend £1000 to
get
a
boiler that will save them £50 a year on gas. So you make a
profit in
20 years time, why bother? My boiler is at least 25 years
old
and
I've only ever replaced the thermocouple for £7. It could
be
newer
fancier boilers have more to go wrong, I've heard of a
modern
boiler
lasting only 7 years!!

If you don't know what that is, see one of my recent poasts
concerning the pigtailing of neutral and ground circuits.

What has pigtailing to do with electronic igniters?

You'd need an electrician's license to even comprehend what I
would
tell you about that.

Licenses are for pussies. I just prefer to get on with the
job.

IF I ever hire anyone (and usually I do all my own work), I
purposefully
avoid anyone with any certifications, it just means they
charge
more
and
are more fussy and won't do the work the way I want it.

Colon Burke is the idiot who said the top pin of a 3-pin plug
was
for
neutral.

Technically it is.

Nope.

Earth = neutral = 0 volts.

Nope. There are 3 pins for a reason, stupid.

Funny how the devices all work with the top one disconnected.

Until there's a problem.

Depends on the problem. If I touch something live, I'd rather not
have
another part of me resting against an earthed appliance.

Yes, you actually are that stupid.

No, I know I need to complete a circuit. Chances are in my kitchen
that
an earth will come form my knee against a washing machine etc.

Only if you are actually stupid enough to be stark naked in the middle
of
winter.

Are you trying to tell me 240V won't go through jeans?


I am succeeding in telling you that.


I shall rephrase, you silly pedant:
"Are you trying to persuade me 240V won't go through jeans?"


I'm not trying to persuade anyone, I am stating a fact.