Heating resistance and descaling electric water heater?

[Alain G]

If we put in it a self-adapting thermostat that studies the temperature curve

It's electronic your thermostat, I guess,

The Just Hi!

Of course!

No thermostat can adapt its temperature, the real term is self-adapting temperature controller.

[spitz75016]

You can put all the theories on the thermal conductivity of tartar, but there is a reality. An electric water heater scaled when the resistance is shielded to a reduced operation. In addition, the difference in expansion between the limestone and the metal element creates tensions which are manifested by noise (clicks), a decrease in the hot water temperature and, in the long run, the short-circuiting of the resistance. For a soapstone resistance this effect is less acute but causes a decrease in the yield therefore an increased electrical consumption.

How to descale: Here is a remarkably detailed article that it is essential to read if you want to refurbish your water heater:

http://www.chauffe-eau.fr/fr/page.htm?_ref=43

And of course on the reference site for water heaters and thermal comfort in general

http://www.chauffe-eau.fr

[dedeleco]

SPAM outright
http://www.chauffe-eau.fr/

Beware of scams !!

[Alain G]

Stéphane


1400 euros for a simple electric water heater it seems far too expensive for the remote programmable function!

NO?

A scaled resistor does not consume more electricity because the amperage decreases with the rising temperature due to the insulation by the scale.

Only the heating time will increase!

Do your own reading on consumption and you will see!


Here in Canada our water heaters have 2 elements one at the top and one at the bottom, if the tank is completely consumed the element of the top heats up first to allow hot water to be obtained more quickly and then that of the bottom takes over to heat the rest of the tank. The inside of the tank is plasticized to avoid corrosion, the bottom element is not completely in the bottom of the tank to prevent it from soaking in the accumulation of scale and a drainage valve allows these deposits to be purged .

All for only $ 350 Cnd for a 272 liters capacity available in 3000 watts or 4500 watts.

[dedeleco]

Funny, forhorse and Alain are physicists with coherent arguments of good sense !!

I have 25 year old water heaters and washing machines and I don't care about tartar as long as they are not blocked or punctured or that it takes a week to heat the water or a burnt resistance !! !!
If you descale it too much, you use more steel and it is pierced faster, the tartar plugs the straw holes with steel defects !!
It's like cars that are washed too often, the paint wears out faster, or those that wash 4 times a day, which boil their skin by destroying the good flora of the skin !!
So with a little calcareous water the tartar is not a problem and we are not concerned!
Putting a large magnet on the water supply helps a little to reduce the solidity of the deposit.

With hypercalcous water, in the Causses for example, since the container fills up to the brim with limestone, a real pebble, these pebbles are removed, every 5 years for example (as for the pot of boiled water).
We dissolve the limestone with acid (not bleach), as dilute hydrochloric acid or other, which attacks metals too, (even holes).

Legionellosis is removed if your pipes are all made of copper, because otherwise I would have died for 30 years that I do not care !!
http://www.cuivre.org/media/pdf_2009/fichier_167.pdf
http://www.cuivre.org/media/pdf_2008/fichier_151.pdf
http://www.cuivre.org/contenu/docs/doc/ ... nelles.pdf
It is a mistake to have only iron pipes.

http://fr.wikipedia.org/wiki/L%C3%A9gionellose

[Alain G]

Hi Dede!

I use a carbon filter cartridge which I replace twice a year to reduce the minerals in the water of my artesian well, without this cartridge the linen which is dried in the open air after passing it through the washer does not smell of mold, especially cotton fabrics are a problem.

With this cartridge I have much less problem of scale in the pipes and in the bottom of the water heater in addition to having less odor of bad taste of water. A second cartridge is used for drinking water which gives me excellent or even better water than aqueduct or bottled water.

Cost of cartridges over a year of around $ 80 Cdn!

[dedeleco]

Hi Alain,
Useful information, but probably the filter is not only activated carbon which fixes the molecules and disinfects a lot, but a sophisticated technological set (what brand, type) with very fine pores ???
I use city water.

An artesian well is very different with various minerals, in principle quite clean.
But well water in the Paris region contains dirt as residue from agriculture such as pesticides, atrazine, herbicides and nitrates, which risk passing filters and activated carbon.

In any case, city water still has some below the authorized limits !!

[Alain G]

Dede

I use this cartridge for the primary filtration of all the water that enters the house:

http://www.rainfresh.ca/images/CF2.pdf


And this one for drinking water:

http://products.geappliances.com/ApplPr ... Sku=GXRLQR

It is a cartridge for refrigerator which makes ice cubes and a compartment to receive a glass and which supplies it with cold water which I have and I also have on the kitchen sink a small tap to take water for cooking or to make concentrated juice.

[dedeleco]

Thank you for this info,
The first is to remove chlorine and other molecules, and particles above 5 microns from city water and not just from wells.
The second stops pesticides, atrazine and almost everything, until the filter is saturated.
This helps to avoid plastic bottles of mineral water.

[primrose]

good evening everyone
It seems to me that everyone has talked about the heating resistors in contact with water, but nobody has spoken of the resistors which are in a well (except contact with water)
who can advise me which model to choose, the most reliable and the most resistant over time. and the price?
As for anodes, the water heater merchants I contacted do not have them, where can we buy them? where are they fixed?
Kind regards.