If I need a gallon of water at 60c (without going into waste, pipework etc) is there any difference in electricity consumption between heating it on an induction hob and heating it in an immersion heater? Just a thought...
What he said(except for "loosing" ). As long as your tank is well lagged.Jamesc":1dliluxm said:By its nature there will much less heat loss and therefore greater efficiency with an immersion heater.
On an induction hob you are inevitably loosing heat to the surrounding areas as it is unlikely the water container will be a perfect fit on the hob. You will also lose heat in heating up the pan which in turn has to heat the water.
James
artie":2ye6pt2b said:On the hob you are only heating what you need, with an immersion heater you have to heat the whole tank.
Unless you are putting an immersion element into the 1 gal container, then there wouldn't be much difference.
blackrodd":94ofvne2 said:artie":94ofvne2 said:On the hob you are only heating what you need, with an immersion heater you have to heat the whole tank.
Unless you are putting an immersion element into the 1 gal container, then there wouldn't be much difference.
Are you sure that this is correct?
I thought the principle of the immersion heater was that hot water floats on top of cold water,
So when using the 2, or 3 stage immersion element, only the top 3rd or 2/3rds was heated.
Or the whole tank.
Regards Rodders
artie":3g5e3tr2 said:blackrodd":3g5e3tr2 said:artie":3g5e3tr2 said:On the hob you are only heating what you need, with an immersion heater you have to heat the whole tank.
Unless you are putting an immersion element into the 1 gal container, then there wouldn't be much difference.
Are you sure that this is correct?
I thought the principle of the immersion heater was that hot water floats on top of cold water,
So when using the 2, or 3 stage immersion element, only the top 3rd or 2/3rds was heated.
Or the whole tank.
Regards Rodders
Who can be sure of anything, it was how I saw it. The OP didn't mention 2 or 3 stage immersion heaters so I didn't consider them.
If placed on a hob the container has to be heated before the water, if an immersion is used the water has to be heated before the container. Both ways there is loss. You can't heat the water without heating the container and some of the air surrounding it as well as whatever is supporting it.
I think.
blackrodd":3sklbvz1 said:Just to clarify, You said that the whole immersion tank would have to be heated, not so.
I tried (badly) to point out that the element worked on the selected amount of water in the tank needed.
a 3rd of the tank, 2/3 rds of the tank or a full tank, from the top down.
I just used the word stage instead of tank.
Regards Rodders
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