
Replacing an immersion heater
EasyFlow are familiar with a wide range of unvented and thermal store water heaters and offer an immersion heater supply and installation service in Manchester, Cheshire, Leeds, Liverpool and parts of London. When calling please have the make and model of your water heater to hand. We offer a same day callout service in Manchester and carry many of the more popular types of immersion heater in stock. Our price list is shown on the pricing page
Burnt Out Immersion Heat
Burnt Out Immersion Heater
Burnt Out Immersion Heater
EasyFlow provide an unvented water heater and a thermal store water heater repair and maintenance service in Manchester, Cheshire, Leeds, Liverpool and London.
EasyFlow supply and fit immersion heater elements for
| •Albion | •Heatrae Sadia |
| •Keston | •Flamco |
| •Santon Premier | •Vaillant |
| •Heatline | •Santon Premier Plus |
| •OSO | •Ariston |
| •Telford | •Manco |
| •Heatrae Megaflo | •Range |
| •Redring Water Heating |
Removing the Seal
Removing the Thermotat
Undoing the Electrical Connection
Replacing the elements on an unvented water heater
All direct water heaters whether they are unvented, thermal store or combination tanks have immersion heaters. An immersion heater may last for between two and three years before it burns out and needs to be changed. Most direct hot water cylinders have two immersion heaters; the main lower heater which is used every day to heat the stored water and a boost immersion heater situated halfway up the cylinder.
Removing the Immersion Heater Cover
The Old Immersion Heater
Santon Premier Plus
The boost element is used to top-up the heat inside the tank as and when necessary whenever demand for hot water has been greater than normal. The main immersion heater should be controlled by a timer to limit the amount of electricity used to heat the water
Correded Immersion Heat
Cracking the nut
Cyclinder Drained Down
Step by step immersion heater replacement
The photos show an immersion heater being replaced in step by step sequence. This would apply to most cylinders whether they are thermal stores, unvented water heaters or traditional gravity fed copper.
Draining Down
Fitting the New Element
Manufactures tool
How to replace an immersion heater:
- Turn off the immersion heaters at the fuse spur or isolator
- As an added precaution isolate the electricity supply at the consumer unit
- Remove the electrical connections
- Open a hot tap
- Drain the water out of the cylinder
- Remove the locking nut or boss
- Remove the immersion heater
- Insert the new heater and tighten
- Fill the cylinder and check the water flow
- Check for any leaks on immersion connections and pipes
- Reconnect the electrical supply
- Test the electrical connections
- Check the earth loop
Old and New Immersion Heater Elements
Old and New Immersion Heaters
Old Immersion Heater in Place
The information here is supplied for information purposes only. Do not try this yourself if you are unfamiliar with the isolation of water and electrical supplies. In the UK only part P registered electricians should work on domestic electrical circuits.
Please note: EasyFlow will guarantee the work we undertake for you but we will not guarantee manufacturers' parts e.g. the immersion heater. Manufacturers often offer a 12 month warranty on parts; this will be passed on to you.
EasyFlow provide an unvented water heater and a thermal store water heater repair and maintenance service in Manchester, Cheshire, Leeds, Liverpool and London.




