View the thread, titled "Boiler FCU Spur question" which is posted in Electrical Wiring, Theories and Regulations on Electricians Forums.

C

chrisgc

Hi

Just wondering what your opinions are when it comes to installing an FCU for a boiler?

1) On its own circuit?
2) Off a lighting circuit?
3) Off a ring main circuit?

What are the pros and cons if any etc?

I am about to do one and was wondering what the general feeling is about it.

Chris
 
Hi

Just wondering what your opinions are when it comes to installing an FCU for a boiler?

1) On its own circuit?
2) Off a lighting circuit?
3) Off a ring main circuit?

What are the pros and cons if any etc?

I am about to do one and was wondering what the general feeling is about it.

Chris

Option 1 or 3 depending on logistics....
 
1. or 3. but not 2. IMO.
 
3) ring final circuit (sockets)
4) radial socket circuit


All are valid solutions. Do whatever is easiest for the particular job at hand. Obviously circuit loading is especially important to consider with option 2)
 
Last edited by a moderator:
I have a spare way in CU so may go for the seperate circuit.

What kind of size cb am I looking at? and is 1.5mm cable size sufficient?
 
Yes 1.5mm² should be sufficient, obviously dependant on load, length of circuit and installation method.
 
6kw boiler? thats almost up to mother-in-law size
 

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Boiler FCU Spur question
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