Heating resistance and descaling electric water heater?

[raymon]

Do you have to descale an electric water heater to avoid wasting electricity? Will the overall yield be better. Since the tartar will continue to heat anyway after the resistance stops.

[Christophe]

Yes, if the resistance is removable, it is entirely advisable to do so (the period depends on the hardness of the water, of course). It's a bit like the problem of frost in freezers ...

If the resistance cannot be dismantled, I don't know how to do it, however ... Calgon can be

[Alain G]

Good evening Raymond!

To descale there is nothing better than chlorine or bleach for washing, you will not consume more since if the element rises higher in temperature the resistance of this one therefore increases not more consumption but it will work longer because less effective on the other hand there is a danger that it will overheat if there is too much tartar and that it jumps but it still takes a lot.

[sam17]

In any case, apart from the descaling itself, care must be taken to monitor the corrosion of the anode which is there to protect the rest of the water heater from the inevitable electrolysis which nibbles on all metals little by little.

If the anode is puffed, it is the body of the water heater which will be attacked and will end up suffering from micro leaks.

[the middle]

If the resistance cannot be dismantled, I don't know how to do it.

Rainwater is great !, no need to descale

[sam17]

If the resistance cannot be dismantled, I don't know how to do it.

Rainwater is great !, no need to descale

Distrust of electrolysis, on the other hand. Especially since rainwater tends to be acidic it seems to me.

[raymon]

My question was rather on the amount of energy consumed is what the water heater will consume more with tartar since the energy is not really lost it is in the tartar and will continue to heat a little after resistance stopped?

[Alain G]

My question was rather on the amount of energy consumed is what the water heater will consume more with tartar since the energy is not really lost it is in the tartar and will continue to heat a little after resistance stopped?

I answered you earlier in the subject:

you will not consume more since if the element rises higher in temperature the resistance of this one thus increases not more consumption but it will function longer because less effective on the other hand there is danger that it overheats if there is too much of tartar and it jumps but it still takes a lot.

You will not consume more !!!!

[sam17]

It is true that this is a little argument number 1 of the sellers of water heaters: if you with tartar it will consume more. And at the same time we make water heaters with steatite resistance which consist in trapping the resistance in a stone which adds inertia to the bazaar ...

We were lied to?

[Alain G]

This is the basis of ohm's law: the hotter a metal, the less it conducts therefore consumes less, it will use the same consumption.

Warmer element = lower consumption = runs longer = same total consumption.