Immersion Heater - No Gasket but has O ring ?

[RobFurn]

HI Folks

I have ordered a replacement immersion heater see pic. To my surprise A gasket was not supplied with this but has a large O - Ring. Will this make a watertight seal? Do I need to apply any jointing compound. How tight to you recon - crazy never getting it off again or just enough?

Much obliged.

 

[Dan Robinson]

Depends on what you are screwing it into.

 

[RobFurn]

Zip water heater RCH25

 

[footprints]

Avoid using silicone with any O rings it causes them to slip and squeeze out of the seating just a little water (or spit on it!) to lubricate it slightly.

 

[RobFurn]

ha ha spit on it I might!. So no jointing compound just spit and screw.... oh er?

 

[footprints]

Just check the seatings are clean. Must say I'm not a fan of O rings for jobs like that but if that's what they supply best to use it.

 

[RobFurn]

yes that what they have supplied its a heatrod and the only one I could find that states its compatible with the ZIP RCH25. Thanks Mate

 

[Jackrae]

Unless the o-ring is retained by a recess then it really is a poor design. Suspect the manufacturer/supplier has found that o-rings are cheaper than flat gaskets and every penny saved is a penny in their pocket.

 

[jeff the gasman]

Never had an issue with them and certainly beats the paste numpties method.

 

[ianmcd]

what you have is correct, do not use any kind of jointing paste and you do not have to heave it up