My garage was cut in half by the previous owners who converted one half into a bathroom. Pictured below is the fuse box in the garage. The incoming power to this comes from the main downstairs socket circuit from the house. I presume this was originally just one socket in the garage, but has been used for all power in the new bathroom.
The two fuses are then shared with five outgoing cables as follows:
- A spur with one double socket (top left)
- A fused spur powering the boiler and the under-floor heating
- Spot lights
- Extractor fan
- Another double socket
I don't see why this has to be so complicated. The boiler is on a fused spur, so why does it additionally need its own fuse box? The circuit is already RCD protected at the main consumer unit.
Could this be simplified? Could the circuit not have been simply extended to add the new fittings (lights, sockets and fan) and then the fused spur added for the boiler etc.. without the need for the fuse box?
Even if the fuse box remained, why not add that (top left) socket below the fuse box on the incoming circuit which is after all for sockets? I don't get the logic.
I'm asking because I want to add a light in the garage (probably on the second fuse, either directly or by extending the current spotlight wiring). I'm wondering if this is a good opportunity to tidy up the mess. Is there good reason for the way it's been done? If not, how would you rearrange it?