How to replace immersion heater
ฝัง
- เผยแพร่เมื่อ 9 ก.พ. 2025
- This is the start of a new playlist of videos detailing how I approach and carry out the installation of specific plumbing and heating tasks. This is not designed for the experience plumber, but hopefully these videos may help newcomers into the industry or enthusiastic DIY'ers.
The first video is how to change and replace an immersion heater on a traditional vented hot water cylinder. Hope it helps.
#lovingplumbing #immersion #plumbing #howto
Excellent
Great video tutorial, thanks. Thanks for the tip to drain the cold water tank because the gate valves are prone to fail. Screwfix and monument don't do those old fashioned cast iron solid immersion spanners anymore I had to order one from eBay.
No problem. Thanks for watching.
Toolstation
Well explained mate. Thanks buddy
Cheers. Thanks for watching.
Great tutorial thank you. 👍
No problem. Thanks for watching 👍🏻
Hiya, great video, what paste did you use?
How are ya mate. Can’t seem to find that nerrad immersion Spanner anywhere. Where did you get it.
Hi, very useful video - thanks. Just a quick one. I have a gate valve between my cold water cylinder and the hot water, and also the second outlet for a pumped shower the same as this. In order to drain down as you suggest, does that result you essentially draining the cold water storage tank fully, and then the top of the HW cylinder will drain?
No need to smear the threads with paste, think about the next guy/gal that has to change the immersion heater.
Paste both sides of fibre washer and that’s it.
I wish all immersion heater changes went as easily as your demonstration!! Many time I have had to use heat to undo the immersion and a big hammer!! Draining is simple - switch off the top tank filler and run the bath hot tap till it stops. There might be a small amount of water to mop up with a vac. I disagree with using paste on a fibre washer for two reasons. A fibre washer is designed to expand if it gets any water on it so makes a watertight seal even if the immersion face is slightly damaged. Putting paste on both sides negates this ability and will make the immersion almost impossible to remove next time.
If the cold feed gate valve is open, does that mean that cold water is going into the cylinder as you are working? Or did you run the shower to the extent that you used it to empty the cold tank and drop the level in the cylinder as well?
Some really handy tips here Luke, thanks very much.
When the tank is old and the thread is corroded and weeping a bit (like the one I've got to change!), do you ever apply a bit of heat? Or is it just WD40 and gentle persuasion...
Thanks. No problem glad it's useful. Normally I just shock it with strong tap with the hammer on the box spanner. I've never tried WD40. Heat definitely works 👍🏻
I m trying in this moment to open. Still doesnt work...
I have a question on the hot water outlet on top. I want to install an immersion heater but the 22mm copper pipe runs across the nut where the heater will be installed. Would it be okay to rise the pipe up about 6" to make room for the heater? or is there a reason why the 90deg bend is thigh to the top of the cylinder? A Great tutorial by the way
@@Raffa836 thanks. Perfectly fine to rise it. Just make sure you definitely tee in the vent pipe.
Is that boss white?
They have a reset button linked to the thermostat. If engaged it wont heat. If you have a range cooker that heats water the water my get too hot and reset the immersion if you have forgotten to switch it off
can i ask what paste you used?
@@tickingpaul Jet Lube. V-2