CHANGING IMMERSION HEATER ELEMENT

[ns3270]

I'm about to replace the element which uses Economy 7 in my hot water cylinder. After draining the cylinder I'm assuming the old element will come out OK with the correct tool which I've got.
To put the new immersion heater with safety thermostat in, should I use 'Boss Supergreen with PTFE' to ensure there will be no leak when I switch the water back on?

Any tips about removing/installing this new element most welcome, thanks.

 

[seco services]

should I use 'Boss Supergreen with PTFE' ?

no thats what the fibre washers for. i usually just use a bit of silicone grease on the thread etc

Any tips about removing/installing this new element most welcome, thanks.

try slacken the element before draining.

 

[ns3270]

I can't get the old element out. I've got the right tool but it's been in there about 15 years and it's really stuck. I've tried tightening it, loosening it, being brutal with it, but it's not moving.
Any ideas?

 

[Agile]

You have not told us how big your tool is!

You could try hitting it with a hammer!

Tony

 

[JPC]

as already stated, try loosening it while still full of water

some times i have hack sawn some of the edge off to allow a screwdriver and hammer action

Some times heat helps...but carefull , cut back the insulation

 

[ns3270]

Monument 361T spanner did the trick

 

[Agile]

You can see a big tool like mine on this link but its a different colour!

http://cgi.ebay.co.uk/NEILSEN-36-ST...3286.c0.m14&_trkparms=66:2|65:1|39:1|240:1318

Tony

 

[ChrisR]

If you have a pressed steel cheap spanner, or a proper cast iron one, hit it with a hammer. You can't really do that with the tommy bar on the box ones.
If the old one is put in with some sort of compound, you will probably have to heat it.