Re: Water kettle energy consumption logging

"Jim Wilkins" <[email protected]> Tue, 22 Apr 2025 15:50:23 -0400
Newsgroups alt.energy.homepower
Organization A noiseless patient Spider
Message-ID <[email protected]>
"Gold Rush Clean Hydrogen R&D Project European Commission"  wrote in message 
news:[email protected]...


Wu Ming <[email protected] > posted:

> legg <[email protected]> wrote:
> > For 'efficiency' in this case, the dominating factor is
> > heat lost from the object, not rates or patterns of input.
> >
> > Layers of insulation, lowering the external skin temperature
> > will produce the best efficiency, regardless of the
> > temperature within the container.
> >
> > RL
> >
>
> We need hot water within seconds. We need it at boiling point for tea and
> also sanitation. The latter more for old mental habit than real threat I
> think. So a kettle with instant heating capability won’t do. We need a
> reservoir of water at almost boiling point readily available.
>
> Kettle has insulation already. Possibly because of the 6 hrs delay option.
> I won’t add more insulation to it.
>
> If mass and insulation aren’t further optimizable what is left is
> temperature. We don’t use hot water form the kettle all the time. Hours
> pass by without any use.
>
> 98° is the operating temperature. I can temporarily lower it to 90°, 80° 
> or
> 60° for the lengthy periods we don’t expect the need for water at 98°. Or
> let it fall for six hours straight. Is it worth it? Will try estimate 
> using
> the producer’s data I discovered yesterday. Fallback options are measuring
> heat loss over time with a meat thermometer. Or directly measuring energy
> required at the plug.
>
Just buy water kettle with thermometer.

I use one to boil eggs

I set 90 C
to make temperature rise under boiling point
than wait 1-2 minutes
to make inner air gap to leave

and rise temperature to 100 C
----------------------------
As I understood the question, he wanted or was told to ask for this 
capability from a lightly or un-modified restaurant hot water urn without 
the constant standby power drain from keeping it hot between meal times. 
There might be an unexpected demand for hot water in between.

https://www.amazon.com/Tankless-Electric-Instant-Digital-Portable/dp/B0DG8MM73C?

Home electric water heaters approach it with the quick recovery element near 
the top, where hotter water won't mix downward (much), which is possible 
because they are always full.
---
In your recycling scheme how does the home operator dispose of the toxic 
waste products? Will they be in a country that doesn't care?

https://goldrefiningforum.com/threads/hot-lead.2655/