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Two high-power appliances on a single 40A RCD

Former Community Member
Former Community Member
I have an electric shower installed on a 40A RCD, in a room adjacent to my kitchen. The shower is only used in an emergency - i.e. when our gas boiler is unable to provide hot water to our main bathroom. I would like to take a spur from this 40A connection to use for a new double oven, which is rated at 32A. Can anyone advise on a safe and legal way to do this, ensuring that only one of the two appliances can be connected at any one time?
Parents

  • cfcman:




    Chris Pearson:



    Thank you for the photograph. I feel obliged to make a couple of observations (with all due respect):


    (1) It is not a large property, so a shower for emergency use seems a little lacking in credibility;


    (2) There isn't a lot of room for a double oven. I also note what appears to be a stack of at least three microwaves. ?



    Oh dear it seems that a picture is not always worth a thousand words :0(

    I'm not entirely sure how your inferences were derived regarding the size of the property, or the "credibility" of a shower for emergency use - I'm not entirely sure what was meant by that?....

    But to clarify:


    • The property is a 3-storey townhouse. I'm not sure what your definition of "large" is, but my guess is that the average UK homeowner would not describe it as "small"

    • The photo shows a small corner of a reasonably-sized kitchen (approximately 12 square metres)

    • There is plenty of space for a double oven to replace the existing single oven (I don't see much value in another photo to illustrate this particular point)

    • The property has three bathrooms - one on each floor. The photo shows the kitchen on the middle floor. The adjoining bathroom is used as a WC, but also has the electric shower in question, which was installed 10 years ago, specifically as a backup in the event of a boiler failure. The associated power supply was installed at the same time.

    • Those are indeed three microwave ovens - well spotted.


    I'm not entirely sure how/whether any of this is relevant, but I guess more information is usually better than less....


    The point about the shower is that whilst you may not intend to use it routinely, a future occupier might wish to do so.


    There are plenty of appliances in that kitchen - IMHO wiring in a more powerful oven to the socket circuit is asking for trouble.


    So back to the shower. The surface-mounted switch is easily accessible in the kitchen. It really wouldn't be difficult to replace it with a changeover switch. Job done!

Reply

  • cfcman:




    Chris Pearson:



    Thank you for the photograph. I feel obliged to make a couple of observations (with all due respect):


    (1) It is not a large property, so a shower for emergency use seems a little lacking in credibility;


    (2) There isn't a lot of room for a double oven. I also note what appears to be a stack of at least three microwaves. ?



    Oh dear it seems that a picture is not always worth a thousand words :0(

    I'm not entirely sure how your inferences were derived regarding the size of the property, or the "credibility" of a shower for emergency use - I'm not entirely sure what was meant by that?....

    But to clarify:


    • The property is a 3-storey townhouse. I'm not sure what your definition of "large" is, but my guess is that the average UK homeowner would not describe it as "small"

    • The photo shows a small corner of a reasonably-sized kitchen (approximately 12 square metres)

    • There is plenty of space for a double oven to replace the existing single oven (I don't see much value in another photo to illustrate this particular point)

    • The property has three bathrooms - one on each floor. The photo shows the kitchen on the middle floor. The adjoining bathroom is used as a WC, but also has the electric shower in question, which was installed 10 years ago, specifically as a backup in the event of a boiler failure. The associated power supply was installed at the same time.

    • Those are indeed three microwave ovens - well spotted.


    I'm not entirely sure how/whether any of this is relevant, but I guess more information is usually better than less....


    The point about the shower is that whilst you may not intend to use it routinely, a future occupier might wish to do so.


    There are plenty of appliances in that kitchen - IMHO wiring in a more powerful oven to the socket circuit is asking for trouble.


    So back to the shower. The surface-mounted switch is easily accessible in the kitchen. It really wouldn't be difficult to replace it with a changeover switch. Job done!

Children
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