Immersion heaters

[RichieHoneybucket]

Can anyone please tell me what's the Ohm rest. On a good 27" immersion heater. Element only.
Thanks for your help.

 

[seco services]

about 18 ohms

 

[TicklyT]

You need to know the power of the immersion heater. They are usually 3KW, no matter what the length.

The square of the rated supply voltage divided by the power gives the resistance

V² / P = R

240² / 3KW = R

57600 / 3000 = 19.2 Ω

Then allowing a bit for the accuracy of your meter, direction of the wind, whether there is an 'R' in the month, etc. etc., if you clock somewhere between 15 and 22 Ohms, it's probably OK.

 

[bengasman]

Probably best to ignore RichieHoneybucket, he is a known troll who has been barred a number of times, and this is his latest alias.
He has never worked in the trade in any way shape or form.

 

[misterdubya]

DeltaT?
Mr. W.

 

[bengasman]

Delta t, drivel, waterworks, bigburner, and judging by the style, he is also the recently registered georgexxxxx, not to mention a number of other aliases.

 

[Agile]

No, they are two different people.

He is Delta T and based in Glazgow.

Unlike Dr Drivel he is a time served and well experienced plumber who employs several people.

He has a particular dislike of CCs and CCCs.

Tony

 

[Agile]

The resistance of the element should be calculated using 230v as thats the standard nominal supply voltage.

So

230v x 230v
__________ = 17.6 Ohms

3000

 

[CareerChangeChancer]

He has a particular dislike of CCs and CCCs.
Tony

We ain't got much time for the porridge-sucking mincer either!

 

[seco services]

he does tell a true picture though

 

[bengasman]

He is Delta T and based in Glazgow.

Unlike Dr Drivel he is a time served and well experienced plumber who employs several people.

Has that been verified? If so, why does need a number of aliases, and does not show up in CC?

 

[RichieHoneybucket]

Is that just simple Ohms Law then Tony??!

Thanks chaps, very greatful.

Kind regards
Delta T

 

[RichieHoneybucket]

He has a particular dislike of CCs and CCCs.
Tony

We ain't got much time for the porridge-sucking mincer either!

As any good Scot will tell you, never mix mince & porridge. Only the half-a-shandy Engerlanders that would do that!