new boiler wiring

[grajam247]

Hi Guys
Just on here on behalf of my mum and brother, who have both just had new boilers fitted.
The question I am asking is what cross sectional area of cable should the supply cable to the boiler be in?
My mums boiler is in(what looks like) 0.75mm three core flex, fed from a plug.
Brothers is from a fused connection unit and that appearrs to bbe thicke stuff, maybe 1.5mm flex.
And should these flexes be heat resistant.

Thanks in advance for any thoughts

Grajam247

 

[ChrisR]

Read the instructions?

0.75 flex is usually OK and doesn't have to be HR.
It should really come from a fused spur and not a plug and socket, but that's not exactly serious.

Check the fuse - normally should be 3A but a few are 5A.

 

[tamz]

0.75 is the standard size of factory fitted leads.

 

[Agile]

0.75 flex is usually OK and doesn't have to be HR.

Why did I think that it needed to be heat resistant then?

Tony

 

[gas112]

ChrisR. Would you like to check that. As any flex entering a boiler should be heat resistant.

 

[Agile]

Chris is an ACS assessor and so he cannot be wrong!

Except perhaps when he has a senior moment.