[Antennas] Interesting article written by a ham

[George, W5YR]

Guess it depends upon how you define the "output" of the heater. We can
measure the input, but what is the output? Heat delivered to how much air in
what period of time? Joules out to where? Beats me . . .

The electric heater may have a fan in it in which case there are some VAR's
to take into account. Even if not, the heating element has a tiny bit of
inductance so the phase angle between current and voltage is just a smidgen
off of 90 degrees. Silly, of course, but its all these little "gotchas" that
mess things up. Like the IR drop in the line cord which probably doesn't
contribute much to warming your feet.

Gang, before the list owner chops this thread, I think I have had all the
fun I can stand. Thanks for all the comments and thoughts.

73, George W5YR
Fairview, TX
w5yr at att.net
http://www.w5yr.com


----- Original Message ----- 
From: "Dave Holford" <holford at sympatico.ca>
To: <Antennas at mailman.qth.net>
Sent: Sunday, June 13, 2004 8:38 PM
Subject: Re: [Antennas] Interesting article written by a ham


> On 12 Jun 04, at 21:29, George,  W5YR wrote:
>
> > Excellent rant, Daniel, and well deserved I suppose.
> >
> > However, regardless of the physics, politics, awards, or whatever,
> > NOTHING in this world is 100 % efficient compared to ANYTHING.
> >
> > 73, George W5YR
>
>
> I always thought that my little electric heater was 100% efficient, if
> it ain't i'd like to know where the lost energy goes?
>
> I know the system from generation to my cold feet has losses, but
> I really thought the heater was lossless.
>
> Dave
> VE3HLU
> - - -
>
> Your moderator for this list is:
> Larry Wilson KE1HZ antennas-owner at mailman.qth.net
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