Power to a Boiler

[clipper1971]

Hi there,

Newto this and just wanted some reference if possible.

Was wondering where to take power from to go to a new combi boiler?

Di i put in a seperate circuit from the consumer unit to the boiler via a fused socket, or is it possible to spur off an existing circuit.

Thanx for any help provided.

 

[Big_Spark]

Whilst a boiler supply can be spured off the nearest ring via switched fused spur, it is common practice, and better, to install a circuit purely for the boiler that is seperate from anything else.

Cable from a 10A MCB in the consumer unit, using 2.5mm Twin and Earth, to a point adjacent to the boiler. Mount a Switched Fused Spur, change the fuse to a 3A, and terminate the supply and boiler feed cables into it.

Job done

 

[clipper1971]

Thanx for the speedy reply.

 

[Inspector]

Is there a separate pump at the boiler?
Are you running the boiler supply cable outdoors / underground?

 

[securespark]

FWL

Can't you use a 3/6A MCB at the board?

 

[Big_Spark]

FWL

Can't you use a 3/6A MCB at the board?

You can indeed, but I did not know whether he would be powering a controller that ran valves and pump (s) additionally to the boiler, hence simply stating 10A to save a long winded explanation.

All to often I get accused of baffling people by long explanantions, and I did not want this thread to iterate into a slag off FWL thread like many have in the past.

 

[ban-all-sheds]

Whilst a boiler supply can be spured off the nearest ring via switched fused spur, it is common practice, and better, to install a circuit purely for the boiler that is seperate from anything else.

Cable from a 10A MCB in the consumer unit, using 2.5mm Twin and Earth, to a point adjacent to the boiler. Mount a Switched Fused Spur, change the fuse to a 3A, and terminate the supply abd boiler feed cables into it.

Job done

WHAT!

Do you mean to tell me that the pl*mber who installed mine, and ran 3m of flex from the closest socket to an FCU next to the boiler didn't do it right?

I don't believe it...

 

[Big_Spark]

Well it isn't the best option available no

 

[mildmanneredjanitor]

Whilst a boiler supply can be spured off the nearest ring via switched fused spur, it is common practice, and better, to install a circuit purely for the boiler that is seperate from anything else.

Cable from a 10A MCB in the consumer unit, using 2.5mm Twin and Earth, to a point adjacent to the boiler. Mount a Switched Fused Spur, change the fuse to a 3A, and terminate the supply abd boiler feed cables into it.

Job done

WHAT!

Do you mean to tell me that the pl*mber who installed mine, and ran 3m of flex from the closest socket to an FCU next to the boiler didn't do it right?

I don't believe it...

Maybe, he was pre-emting part 'p'???

And not connecting directly to the homes supply...

I'll get me coat

 

[Big_Spark]

I'll get me coat

Can you take your smelly, muddy boots this time as well..thanks

 

[ban-all-sheds]

..And not connecting directly to the homes supply...

When I said he ran 3m of flex from the nearest socket, I don't mean he plugged it in, he did:

[code:1] ||
[SOCKET]~~~~~~~~~~~~3m flex~~~~~~~~~~[FCU]~~~~{boiler}
||
|| (ring)[/code:1]

with the flex wired into the back of the socket....

 

[plugwash]

fine if and only if the flex is 2.5mm or bigger

he probablly used 1.5mm though which is definately not fine

 

[mildmanneredjanitor]

..And not connecting directly to the homes supply...

When I said he ran 3m of flex from the nearest socket, I don't mean he plugged it in, he did:

[code:1] ||
[SOCKET]~~~~~~~~~~~~3m flex~~~~~~~~~~[FCU]~~~~{boiler}
||
|| (ring)[/code:1]

with the flex wired into the back of the socket....

Oh dear!

Do Corgi registered Gas Engineers have to undergo any basic electrical training then???

Seems daft, if they don't. Most boilers require a certain amount of electrical work. I think you proper bonafide sparkies should mention something. Woe betide you if you look at a gas pipe in a meaningful way

Never seen a plumber bond his own pipework either come to think of it... Oooh can of wormies!

Multi disciplined... Shhh, don't tell Mr BC, but that's another thread

 

[dingbat]

Multi disciplined... Shhh, don't tell Mr BC, but that's another thread

I discovered that thread this afternoon - most amusing. Wonder what would happen if we fixed up BC with FWL?

 

[mildmanneredjanitor]

Multi disciplined... Shhh, don't tell Mr BC, but that's another thread

I discovered that thread this afternoon - most amusing. Wonder what would happen if we fixed up BC with FWL?

My moneys on FWL, electrical engineer is a specific skill and not a generic term!

Sharing knowledge is very rewarding, antagonising people for no reason (I suppose is for some people too!)