Is it advisable to feed a 1,600 Watt Quooker heater from a ring main spur?

[haggis999]

I will soon be installing a 1,600 Watt Quooker hot water heater for which a new 13A socket will be required. A ring main cable passes behind the kitchen cabinet that houses the sink and I have the choice of either inserting a single junction box into the ring and feeding the new socket via a spur, or cutting the cable and putting a junction box on each end so that the new socket could be fully incorporated into the ring. In the latter case, it's not practical to try and feed new ring cables from the nearest sockets, so using 2 junction boxes would be unavoidable.

In theory, it should be OK to connect a 1,600 Watt heater to a spur socket, as this would draw a current of under 7 Amps and be well within the capacity of the 2.5mm2 spur cable.

However, are there any reasons why it would be more prudent to wire the new socket into the ring?

 

[telectrix]

just someting else to break down once the guarantee has run out. what's to go wrong with this:

 

[Lucien Nunes]

We sometimes get obsessed with putting every socket into the ring, but spurs were invented for a reason and correctly used they are very handy. There is no reason not to put the Quooker on a spur if it is more convenient. If it reduces the number of joints or makes them more accessible, then I would say it is preferable to be on a spur.