Dishwasher on solar hot water (or gas, oil)?

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I Citro
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by I Citro » 26/07/11, 10:01

Philippe Schutt wrote:ah yes indeed, the programmer should remain taped while waiting for the T °.

It looks like a tube panel would be ideal now? In the comparative subject between plans and tubes, we will end up saying that the best is a CESI with a panel of each : Mrgreen:
Tube panels are poorly resistant to hail ...

In terms of cost, investing in solar panels to wash your clothes cannot be depreciated ... Heating water with a cap is much more economical ...
Some DIY enthusiasts have made their own thermodynamic water heater with an electric recovery tank, air conditioning at 250 € and a plate heat exchanger at 80 €.
: Idea:

This morning, the shower water was at 30 ° (it was bearable) because several rainy days and I cut the gas back-up ...
If the temperature has not gone up this evening, I will turn the boiler back on ... (I would take the opportunity to measure the gas consumption for the water heater).
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by Did67 » 26/07/11, 11:24

Christophe wrote:Yes but not sure that DHW at 40-45 ° C as currently (not really sun for 3 weeks) is enough to properly clean properly ...:


Hence the idea of ​​the switch: do not get stuck when the sun is not providing, like these days! Electric heating remains available "as an option" the rest of the time: solar priority ...

But indeed, must check if an insufficient temperature does not block the cycle (in my opinion, no; but this is only an idea).
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by Christophe » 26/07/11, 11:40

Well in my opinion yes ...

There is only one solution to decide that someone has to test the resistance shunt ...

And it is not sure that from one model to another it is the same!

As I said, my model is built-in, very painful to dismount so if someone has a more accessible one for the 1st test it would be nice ...
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by Philippe Schutt » 26/07/11, 13:36

No shunt, unplug otherwise short-juice.

And disconnect or shunt the thermostat to lure the programmer.
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by Did67 » 26/07/11, 16:17

"shunter" / "disconnect", I think we agree: disconnect and isolate the terminals of the wires (neutral, phase) supplying the resistance

Me too, mine is embedded, I just put it back, in addition, I have no measurer ...

For the moment, it works after my repair with 20 balls: do not touch! (solar hot water and / or pellets otherwise).
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by Christophe » 26/07/11, 17:55

Well, well ... there's more than Philippe who sticks to it then ... : Mrgreen:

Then first it is you who proposed the idea! : Cheesy:
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by Philippe Schutt » 26/07/11, 18:17

ok, but only after the LV warranty, another 2 years.
:|
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by manet42 » 04/08/11, 19:39

Hi,
Far be it from me to revive the debate ...
Here are some measurements taken at my house this week:

-Washing machine, a usual cycle at 40 ° C.
With hot water supply (solar summer, winter pellets): 0,16 kWh.
With 0,40 kWh cold water supply.

-Dishwashing machine, usual eco program at 40 ° C.
Hot water supply: 0,39 kWh.
cold water supply: 0,50 kWh.
In winter the mains water would be colder.

JC
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by I Citro » 05/08/11, 09:24

manet42 wrote:Hi,
Indeed, that does not make heavy budgetary ...
The cost of "heating the water" for our dishwashers and washing machines would therefore be around ten € per year. Image
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by Did67 » 05/08/11, 18:32

What seems a little surprising to me is:

1) deviations from the figures given by Christophe above

2) deviations from the standard values ​​of the cycles announced by the manufacturers (of the order of 1 kWH to 1,5 kWh); it amazes me that they exaggerate up!

3) the LV / LL gap: on LL, the savings linked to hot water are much greater; however, on a LV, each cycle uses hot water (except prewash); and on an LL, only the washing uses hot water ... One would have expected the opposite ... a weaker economy.

I do not want to doubt the measures of manet, but I do not understand !!!
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