Can I spur a socket from an existing fused spur on a ring main?

[coliander]

I'm sure this has been asked before, but I just want to confirm:

Currently I have a spur leaving a socket in the bedroom, into a 13A Switched FCU and running up to power a double socket in the loft.
I now want to locate a socket in the old boiler cupboard/airing cupboard to power a tumble dryer (relatively low load heat pump unit).
The simplest way to do this would be to place a junction box in the loft and between the FCU and the loft double socket and run power back down to the socket the boiler cupboard.
Is this permissible/safe? And should I place another FCU before the boiler cupboard socket, or will the existing FCU on the loft feed be sufficient?

Ta.

 

[littlespark]

If the spur is fused, then you can have more than one point after the fuse. Any load past the fuse would be limited by the 13A fuse.

Does the airing cupboard not already have a supply to it for a boiler or old immersion? These are likely to be on a 16A radial, and can be reused to run a socket.

 

[coliander]

Thanks for the quick response.

Around a decade ago, the old warm air heating system was upgraded to a central heating/combi boiler setup and it appears that the supply to the cupboard was decommissioned at the same time. When I purchased the property, the original fuse box had an allocated space for the old boiler fuse, but it was vacant. The only wiring remaining was from the room thermostat back to the cupboard.
Pity, because that would have made things a lot cleaner!

 

[mainline]

Thanks for the quick response.

Around a decade ago, the old warm air heating system was upgraded to a central heating/combi boiler setup and it appears that the supply to the cupboard was decommissioned at the same time. When I purchased the property, the original fuse box had an allocated space for the old boiler fuse, but it was vacant. The only wiring remaining was from the room thermostat back to the cupboard.
Pity, because that would have made things a lot cleaner!

Is it Rcd protected ?