Re: Suspension losses

On Mon, 13 Jan 2025 11:03:03 -0500, Frank Krygowski
<frkrygow@sbcglobal.net> wrote:

On 1/13/2025 8:57 AM, zen cycle wrote:

On 1/13/2025 2:01 AM, Jeff Liebermann wrote:

On Mon, 13 Jan 2025 13:20:04 +0700, John B. <slocombjb@gmail.com>
wrote:
>

But long before the days of transistors and "circuit boards" my folks
had an electric blanket... used it all the rest of their lives. Is the
modern one better?

>
Not really better, but certainly safer.  Electric heaters are all 100%
efficient.  Every watt you shove into the heating wires is turned into
heat.  There's no way to improve on 100% efficiency.

 
Nothing is 100% efficient

>
It's certainly true that 100% of the electricity consumed by an electric
blanket becomes heat.

True (because that's what I said).  However, there's some question
about how well a heater will warm the user, room, environment,
atmosphere, etc.  This video compares the effectiveness of heating
with a heater that uses convection with one that uses radiation.  Both
types are 100% efficient, but deliver and distribute the heat
differently.

"Is Electric Heating Really 100% Efficient?"
<https://www.youtube.com/watch?v=B7X6wmBKG_4>  (6:07)

I've always had a mindset for minimizing waste. For most of my life I
was diligent about shutting off the light switch when leaving a room.
But now I often don't bother, especially in winter. LEDs draw so much
less electricity anyway, and in the winter the "waste" just amounts to
electric heat.

I'm not so diligent.  I still use an old coil wire electric wall
heater in the bathroom.  It's literally falling apart and should have
been replaced many years ago.  Yet another project.

I recently discovered that I had left a 12VDC power supply turned on
but with nothing connected drawing 12 watts continuously.  It's
probably been like that for the last 10 years.  I did the math and
discovered that it was costing me $23/year to do nothing but add a
little more heat to the room.  My solutions was to turn it off.


--
Jeff Liebermann                 jeffl@cruzio.com
PO Box 272      http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann      AE6KS    831-336-2558