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WHO USED ALL THE HOT WATER!!! Need a simple temperature data logger ** UPDATE **

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AndyBeez:

--- Quote from: Brumby on August 25, 2023, 02:23:00 am ---Again, I say, the performance of the hot water system is not the problem being presented here.

--- End quote ---
Yes, they are conducting a surveillance operation against an identifiable but gender unspecified individual who is apparently using too much hot water and eating too much lasagne. So issues about heat capacity, thermal efficiency, shower mixer design and pipe lagging, don't count as this project is just about nailing a pesky perp. Personally, I would just put up a notice telling all gender unspecified users of hot water users to kindly shower 'sans-vapeur' - no steam please as the Stasi are recording your every joule.

Brumby:

--- Quote from: AndyBeez on August 25, 2023, 12:20:48 pm ---Personally, I would just put up a notice telling all gender unspecified users of hot water users to kindly shower 'sans-vapeur' - no steam please as the Stasi are recording your every joule.

--- End quote ---

Oh that such a simple action would be effective.

This person would ignore such a sign and probably shower longer to spite.  If another member of the household called them out, they would deny vehemently even if they'd been in the shower for an hour.  The ensuing toe-to-toe would simply escalate as the guilty party would not back down and a third party intervening would have a situation of one word against the other.

Do not underestimate the determination and conviction of an entitled bullshitter.

Brumby:
 :palm:

Just as I was looking at some figures, wondering what effect solar heating of the pipework/building might have to the numbers, I received some news.....

The party concerned was a guest.  One that had abused that hospitality in far more ways than just excessive hot water .... and .... they have vacated, finally.


Now I have no need to pursue this any further .... .... but this experiment still has its intrigue.

richnormand:
https://www.lascarelectronics.com/easylog-el-usb-tc
at the water heater location.

Brumby:
Interesting.

That unit has a few more data points than the one I have (32510 vs 30001) and you can select an interval all the way down to 1 second (vs 10 seconds).  It can also use other sensors.  For my use, not a big deal.

On the flip side, it's about 4 times the price.  Also, it does not have any wireless communication, so it's a retrieve and plug in exercise which does not suit my application as well as the one I stumbled across.  It also doesn't seem to have humidity measurement - but that really isn't of much interest for my use case here.

Thanks for the info.  It's always nice to see what else is out there.   :-+

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