why a boiler on a ring main?

[ldpooley]

I need this clarifyiing for a college exam(actually part of a plumbing course and why teachers cannot answer this)

why can a boiler run off a ring main and not for example, a cooker or immersion..

they tell us that everything else needs a radial circuit, but why is a boiler so special?

 

[7029 dave]

You can spur it down off the ring with an FCU, or on an 13amp plug top, fused down with the appropriate size fuse rating.

 

[telectrix]

think the issue is more like that a cooker or immersion circuit should not have a boiler or other appliance connected to it's circuit,asthese areboth heavy loads and their respective circuits have been designed for them alone.

 

[7029 dave]

^^^ these are dedicated circuits.

 

[Octopus]

If the boiler is a gas appliance then all it needs is a 3a supply. If it's an electric boiler it needs a dedicated circuit.

 

[telectrix]

thazt's what i meant. but didn't say dessicated. oops. dedicated, bloody wine.

 

[bigspark17]

Anything above 2kw should have dedicated circuit. A gas boiler supply is for control systems only and maybe a pump which can be easily fed of a 3 amp supply.

 

[Darkwood]

Loads 2kw plus should be on a dedicated circuit and not on a ring, been dedicated they should only supply the load they were wired for.

A gas combi - boiler only requires electric to power the controls and is a small load so can be taken of a Ring main or Radial socket circuit is required although requires fusing down, it is preferable if possible to give the boiler its own dedicated circuit as a fault on the ring main would also lose all the heating if it was taken off the ring main.


EDIT - bigspark - beat me to the post darn!...

 

[ldpooley]

cheers murdoch..that was the answer i was looking for

 

[Geordie Spark]

thazt's what i meant. but didn't say dessicated. oops. dedicated, bloody wine.

Here ye gan Tel >>>> https://www.youtube.com/watch?v=Fhlsz-0MXco

 

[Octopus]

cheers murdoch..that was the answer i was looking for

fyi there is is a thanks and like button under each post

 

[bluestar]

Anything above 2kw should have dedicated circuit. A gas boiler supply is for control systems only and maybe a pump which can be easily fed of a 3 amp supply.

what about a kettle?

 

[Leesparkykent]

what about a kettle?

Its not a fixed appliance...

 

[Octopus]

Its not a fixed appliance...

And used far less than a heater.....

 

[Geordie Spark]

Its not a fixed appliance...

It was at one place I worked at.

It was wired into a FCU so nobody could nick it.