UK Gas Cooker conked and electrical cooker replacement

[advicewelcom]

Hi, quick posting - welcome any advice as new to this stuff...

Have a Howden HJA 0150 gas grill/oven with a broken thermostat that and can't get a replacement (grill igniting but no gas coming out of oven burners when on).

The Howden grill/oven is on a ring in the kitchen which has following appliances on it:
-microwave
-fridge freezer
-kettle
-toaster
-a Howden gas hob
-the busted Howden grill/oven
-couple of kitchen sockets generally not used

It all goes back to a RCD with a fuse that says - MTN132 b32 hanger fuse

There is an electrical wall connection for the grill/oven, with (I think) a 6mm wire for the ring (and not the thicker 10mm wires used for showers).


I may want to replace with just an electrical gill/oven. So some questions...

-Is there is max kilowatt oven that I could just wire into the current wall socket (which is used for the current grill/oven electrical ignition connection)?

-Would I need to replace the fuse in the RCD for the main? And is so with what?

-Would these things ensure the fuse would not trip if the oven was switched on?

-There are lots of electrical ovens but the instructions say they should be wired directly to the fuse box, so wondering if there is one which can just run from this ring main (if I upgrade the fuse)?


Would hate to buy an electrical oven and then its a nightmare and expense to fit it (the fuse box is currently full).

Welcome advice.

(attached pic of gas connection, and wall sockets for hob and grill/oven)

 

[nicebutdim]

Dying of Covid is nothing we can do about on this forum, dying from electrical shock is ;-) Good suggestion, I can fit a fly lead but looks like its been discussed quite a bit and seems not required by the regs as earthing happens through the lug for recessed back boxes (@ 2:22). Looks more applicable for surface mounted boxes.

Remember that old adage about 'a little knowledge'.

 

[Deleted account]

Surely this needs an electrician in. It's very close to step-by-step instructions on reconfiguring a circuit.

I think the above post needs seeing again.

 

[advicewelcom]

Thanks for past advice. Washing machine ordered for tomorrow (does not come with a wire) and assume there is calculation for a 2.3KW oven to determine the wiring requirement (2.5mm T&E would do the job I assume for 10A)?

Also those darn screws are not going into the backbox lugs easily and holding the front socket in, not sure if this is another newbie question - but if the back box is a bit warped is the suggestion to re-tap the lug thread or use something to fix it (removing the backbox would be a headache).

 

[brianmoooore]

Most domestic sparkies carry a 3.5mm thread cleaning/reforming tool in their toolbox.

 

[advicewelcom]

Most domestic sparkies carry a 3.5mm thread cleaning/reforming tool in their toolbox.

Ta - figured as much.

Almost there, just a query about lead installation from oven to wall FCU...
-2300W / 230v = 10Amps current expected through the electric oven lead at max.
-Understand that 2.5mm T&E does 24Amps circa (but not sure about unburied).
-Fuse in FCU would need to be 13Amps

If I have some spare 2.5mm T&E - this going to be okay for unburied oven lead to FCU?

Should I go for 4mm if unburied?

(BEKO manuals are flippin' useless and googlin is ambiguous).

 

[brianmoooore]

Will the temperature around the cable reach or exceed 70 degrees at any point?

 

[telectrix]

Ta - figured as much.

Almost there, just a query about lead installation from oven to wall FCU...
-2300W / 230v = 10Amps current expected through the electric oven lead at max.
-Understand that 2.5mm T&E does 24Amps circa (but not sure about unburied).
-Fuse in FCU would need to be 13Amps

If I have some spare 2.5mm T&E - this going to be okay for unburied oven lead to FCU?

Should I go for 4mm if unburied?

(BEKO manuals are flippin' useless and googlin is ambiguous).

2.5mm cable will be fine.

 

[advicewelcom]

Will the temperature around the cable reach or exceed 70 degrees at any point?

Oh, Dunno.. is a standard 60cm x 60xm x 60cm oven space, so assume not.

https://bekoplc.blob.core.windows.net/bekoupload/manuals/BBIF22300.pdf

2.5mm will be okay I think, if you violently disagree welcome hearing back.

 

[westward10]

How are going to terminate this 2.5 cable from the FCU.

 

[brianmoooore]

2.5mm2 will be fine. It's 2.5mm2 what that matters. I wouldn't be using 6242Y

 

[DPG]

Be interesting if it's coming out of the front flex outlet of an FCU !

 

[advicewelcom]

Be interesting if it's coming out of the front flex outlet of an FCU !

Oven Wiring - https://photos.app.goo.gl/7QLDMB6tawSqNdtB8

Switched FCU's under counter next to gas plumbing - one for hob (I assume) other on right side for current gas oven.

 

[westward10]

Oven Wiring - https://photos.app.goo.gl/7QLDMB6tawSqNdtB8

Switched FCU's under counter next to gas plumbing - one for hob (I assume) other on right side for current gas oven.

So how are you going to connect this 2.5 cable.

 

[advicewelcom]

Hi, its all fitted a looks great. So thanks a lot for past advice(!)

Was a bit worried about the power wire on the back touching the oven when pushing it in.

But so far, no issues with it, or with any of the circuits tripping.

 

[advicewelcom]

Did have another issue which someone on here may have an idea about?

The gas man who sealed off the connection said that was a small leak on the mains pipe that feeds the meter. He stuck some fairy liquid on it and there was a small bubble. I called Cadent who (after 4 hrs of messing around) changed the external pipping to the meter with some engineers during the evening.

The Cadent engineer then said there was a 2millibar drop showing and despite checking all the appliances with his sniffer (boiler, cut off gas seal for new oven, gas heaters, etc). cut off the gas on Christmas eve. I was horrified as there was no heating (even if the oven was working) on Crimbo day.

Does anyone know if they are allowed to cut the gas like this to a residential house when there has been no reported smell of gas, all appliances have been tested and the millibar drop on a tightness test is only showing 2millibar??