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immersion heater

Electric heating is a process in which electrical energy is converted to heat energy. Common applications include space heating, cooking, water heating and industrial processes. An electric heater is an electrical device that converts an electric current into heat. The heating element inside every electric heater is an electrical resistor, and works on the principle of Joule heating: an electric current passing through a resistor will convert that electrical energy into heat energy. Most modern electric heating devices use nichrome wire as the active element; the heating element, depicted on the right, uses nichrome wire supported by ceramic insulators.
Alternatively, a heat pump uses an electric motor to drive a refrigeration cycle, that draws heat energy from a source such as the ground or outside air and directs that heat into the space to be warmed. Some systems can be reversed so that the interior space is cooled and the warm air is discharged outside or into the ground.

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  1. batwad

    Why disconnect an immersion heater?

    I moved house a few months ago and am slowly but surely figuring out its nuances. Wouldn't it be wonderful if houses came with wiring/plumbing diagrams that showed how everything connected? Anyway... I've got what I understand to be a pretty standard gravity-fed vented heating system, with...
  2. T

    Unvented santon (45 yr old?) immersion heater with gravity fed tank?

    Hello, I hope someone can help, we recently were forced to move to a ground floor social housing flat because of my partners worsening health condition. It has an assisted shower with a mira advanced thermostatic low-pressure shower unit so hot water for baths isn't a problem. However, the...
  3. E

    Worcester oil boiler and water immersion heater question

    I have a Worcester Greenstar wall mounted Danesmoor oil fired condensing boiler and a separate water heater immersion cylinder (Range Tribune HE). Please can you tell me the following?My house uses electricity and domestic kerosene oil for energy: - Can the water immersion heater be used on...
  4. P

    Immersion heater - water leaking

    I came home to find water dripping from the ceiling! After turning off the water supply I looked in cupboard housing the immersion heater but I could not find the leak - other than what appeared a leak from the immersion heater. The immersion heater is a tribune premier by IMI Water Heating...
  5. B

    Is this immersion heater washer made of asbestos?

    Hello. Whilst replacing my immersion heater, I came across this washer. Is it made of asbestos? Is there a way of telling? The cylinder must be from the 60's or 70's, but I'm assuming the heating element has been changed since then. The existing one's been in place since 2006 at least...
  6. ChrisTanner

    Want to add immersion heater to Worcester Heatslave 20/25

    I have a Worcester Heatslave 20/25 in reasonable shape, and am about to install a load of solar PV on the roof. There will be excess capacity from the solar that I want to divert to an immersion heater to reduce the load on the oil boiler. I was wondering if I could fit an immersion heater coil...
  7. D

    Immersion heater hot water bath

    Hi, I am looking to build a DIY hot water bath, I was planning on using a small screw plug immersion heater, drilling a hole into a polypropylene tank and using a nut/gasket to seal it. Recon it could work?
  8. I

    Immersion Heater or Water heater

    I do not live in the UK so not always familiar with the right term. My mother has a flat in London that needs a new immersion heater to heat hot water for bathroom and kitchen.. She currently has an electric one that is very old and needs replacing. I went to B&Q, Homebase sites to look for a...
  9. L

    Help with immersion heater

    Hi I have had problem with a 3 phase immersion heater, I installed it into a gravity system about 3 months ago and it stopped working after about a month. It was installed into an existing gravity cylinder which is on bottom floor of a large office block. The cwsc is in roof space and is the...
  10. J

    Is there a programmable stat that can also do immersion heater?

    Hello, Looking for help with finding a suitable controller. Customer has oil Aga for central heating and hot water - simple enough. However over the summer months it gets shut down and any heat requirements are met by wood burner and hot water is produced electrically via cylinder immersion as...
  11. G

    Bath mixer or immersion heater

    Hi Bath mixer tap is running too hot in shower, almost scalding. Other taps seem mostly good temperature. However there is immersion heater in flat. How do I differentiate whether element stat or mixer tap is failing.
  12. C

    Elson Coral E - No hot water from overnight immersion heater

    Hi, I recently bought a 2 bed flat fitted with a Elson Coral E thermal store unit, and unfortunately it's not generating any hot water from the over night immersion heater. The water isn't as cold as the cold water tap, but it's also not anywhere near lukewarm let alone hot. Also worth noting...
    • charlie_p
    • Thread
    • elson heater hot hot water immersion immersion heater no hot water water
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  13. J

    What type of immersion heater is this?

    I'm having to use the rather old immersion heater for hot water as my DHW from the boiler has a leak. Can anyone tell me what type of immersion heater this is? see photo. I assume it's non-thermostatic but that it does have some kind of safety cut-out? Does that mean it will heat the water...
  14. L

    Hi all need some help my coral e immersion heater

    Light on in cupboard but no noise also tried to reset it but no luck both stats renewed at Christmas
    • Larryloo
    • Thread
    • boost heater help immersion immersion heater problem replaced voltage water
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  15. M

    Immersion Heater Element size

    Hi, I need to replace a clapped out immersion heater element in my hot water tank but I'm unsure as to the correct replacement size. The current element has a length of 16 inchs overall with the actual heater element being 13inches. any ideas as to the replacement size I should get? Thanks in...
  16. S

    Risk of Legionella in Immersion Heater

    Hi all, Me and my partner have recently moved into a flat that solely uses an immersion heater (think it's a dual one) on economy 7 for water heating. Since we have an electric shower and a cold-fill washing machine, we turned off the immersion heater as we don't use hot water taps. My...
  17. townfanjon

    Immersion heater thermostats

    Guys , these stats are without a doubt the biggest PITA I deal with . I am just sick of buying stats that dont work out of the box , either they cut off too quick or fall short of just about boiling a cylinder . Does anybody know of a firm that makes imm heater stats ( 11" unvented / thermal...
  18. T

    Immersion heater

    Hi. I have a 30 by 18 copper cylinder what size immersion should be fitted to this. Immersion is fitted from the top and its a dual coil cylinder? Thanks
  19. 8

    immersion heater troubleshooting

    Hi One of my customers has a problem with their immersion heater. Don't have much experience with them so looking for advice on what to check. Do I turn it on and check it have 240v on the live, is it that simple?
  20. M

    Burnt out immersion heater

    Hi Chaps, I hope you are well and have had a cracking week. I need some advice on the attached images. The immersion heater has totally melted the plastic covering and then tripped the fuse. I have not been there yet. This is immersion heater only, so is the cable too small, can't be wrong fuse...
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