Immersion spur

[haj]

Good evening gentlemen i been asked to put switched fused spur in the airing cupboard for a shower pump the customer says the plumber says just tag it on to the immersion ! What's everybody's take on this ?

 

[stuart569]

I certainly don't see a problem with this especially as most immersion heaters are just a backup in case of gas/oil boiler failure.Remember and fit an Rcbo if it's on the non rcd side

 

[haj]

Good thinking Batman !! I shall bear that in mind if there is no easy spur near to hand.

 

[GT1]

......

 

[topquark]

[FONT=&amp]OSG, 8.5[/FONT][FONT=&amp]; EGBR 4.5 and GN1, C4 advise "Water heaters fitted to storage vessels >15 litres ... should be supplied by their own separate circuit."[/FONT]

Cheers Markie . So there is no BS7671 regulation as such? It's down to advice and building regs.

 

[SimpleSimon]

Cheers Markie . So there is no BS7671 regulation as such? It's down to advice and building regs.

Thats right. I remember posting a thread recently asking because i couldnt find it in the regs.

Sent from my GT-I9100 using Tapatalk

 

[haj]

So it would seem to be acceptable to use the immersion for a spur if no easy route for a spur from the ring ?

 

[topquark]

So it would seem to be acceptable to use the immersion for a spur if no easy route for a spur from the ring ?

Not sure I'd want to do it for a new circuit Haj, just curious about all the ones I've seen like it. I couldn't understand what it was in violation of.

 

[haj]

I agree I have seen a few and wondered what the general view was on doing it. Spur of the ring seems to win out or even a new circuit if access is easy.

 

[Dan23584]

I agree with you guys, a spur of the immersion is not the best route but if no other option then I can see why someone may do it........although I think I could always find a better option than the one being discussed lol

 

[SPARTYKUS]

I'm sure there is a reg, Its rooted in the "no diversity" thing cos its a kettle isn't it, on for hours at a time.

Can also see why but theres usually a (more awkward) solution. Seen allsorts tagged on immersions! 2x 500w security lights!

 

[cjp1]

When I install shower pumps if I can get a new dedicated circuit in then I will, If a new circuit is not an option can`t see a problem with a spur off the ring or Immersion circuit if no existing RCD protection and its required could use a fused rcd spur like a powerbreaker.

 

[drew35]

It does say some where in the book that ideally the immersion should have its own circuit, but its that word ideally, it doesn't say must!

 

[GT1]

The shower pump can be fused down to 3 amps from the lighting ring with an FCU. It's usually easy to come through the top of the airing cupboard to the lighting loop.
Alternatively I've found that there's sometimes an old shower cable from the CU in the bathroom. Again fused down to 3amps with an FCU to the flex from the pump.

 

[Dan23584]

The shower pump can be fused down to 3 amps from the lighting ring with an FCU. It's usually easy to come through the top of the airing cupboard to the lighting loop.
Alternatively I've found that there's sometimes an old shower cable from the CU in the bathroom. Again fused down to 3amps with an FCU to the flex from the pump.

ring?

Sorry to nip pick

 

[GT1]

Apologies.
Long day, tired eyes. !!
replace the word "ring" for "loop".