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Installing new oven & hob - converting from gas

Does what it says on the tin
zico
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Installing new oven & hob - converting from gas

#489848

Postby zico » March 28th, 2022, 8:15 pm

My father currently has a gas hob and a gas oven. The gas oven is being replaced this week (we're paying for installation and removal by Currys) but I'm wondering what will happen to the gas supply. Will they disconnect the gas supply so that the gas hob is unusable and needs to be replaced, or will both the gas oven and the gas hob have separate gas connections? Or is it something that nobody will know until they actually take out the existing built-in oven?

swill453
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Re: Installing new oven & hob - converting from gas

#489855

Postby swill453 » March 28th, 2022, 8:29 pm

If the existing hob and oven are separate, they probably have separate gas supplies, or maybe some kind of T-connection. So it's difficult to see why the hob would be rendered unusable - the oven supply should be able to be capped without affecting it.

Do you know that you have the correct power supply immediately to hand for the (presumably) electric oven? I wouldn't have thought the Currys bods would be geared to do much more than connect to an adjacent point.

Scott.

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Re: Installing new oven & hob - converting from gas

#490113

Postby modellingman » March 29th, 2022, 5:59 pm

As swill 453 notes, if the two appliances are separate then they will have separate supplies, if only because they will each have their own gas inlet.

In the early days of separate ovens and hobs, there were some set-ups where what appeared as a separate oven and hob was actually a single appliance - the giveaway being that the oven and hob controls were all co-located in a row above the oven (much like a freestanding cooker). Providing you are not replacing one of these you will have separate supplies though this could well be a single supply pipe with a T junction splitting it into two supplies.

The regs seem to change constantly but if the old oven was connected using a bayonet style connector then you may not even need to cap off the old supply. The fittings are designed to seal the supply pipe when the flexible connection to the oven is disconnected. Whether the regs allow such a sealed supply to be left in situ or even allow a non-Gas Safe bod to disconnect the hose, I wouldn't like to say.

The fitters won't really know what is actually required until the old oven has been removed. An electricity supply will be needed for the new electric oven but many single ovens are now designed to be utilised with a 13a supply (it is electric hobs that usually require a dedicated and meatier circuit). Is there a supply available in the vicinity, ideally under the countertop? The other possibility is that the gas supply may need rerouting to avoid the new oven fouling the pipework, but again it is only once the cavity for the new oven is exposed and the fitters have tried sliding the new one in will this requirement be known for definite.

zico
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Re: Installing new oven & hob - converting from gas

#490343

Postby zico » March 30th, 2022, 2:55 pm

Thanks for replies. I know there's an electric supply and socket close to the gas oven, so should be ok.

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Re: Installing new oven & hob - converting from gas

#490666

Postby zico » March 31st, 2022, 6:23 pm

Quick update. I checked via WebChat with Currys to make sure they'd be able to replace a gas oven with an electric one, which they confirmed. Delivery guys arrived today "Oh, you've got a gas oven, we can't replace that because we're not dual-fuel specialists". They also said I should also order an induction hob because even the dual-fuel specialists might struggle depending on how the gas is connected to the hob.

So, back to square one - probably with a different company!

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Re: Installing new oven & hob - converting from gas

#490676

Postby bungeejumper » March 31st, 2022, 7:30 pm

zico wrote:Quick update. I checked via WebChat with Currys to make sure they'd be able to replace a gas oven with an electric one, which they confirmed. Delivery guys arrived today "Oh, you've got a gas oven, we can't replace that because we're not dual-fuel specialists". They also said I should also order an induction hob because even the dual-fuel specialists might struggle depending on how the gas is connected to the hob.

Don't panic yet. When we replaced our gas/electric dual fuel cooker with an all-electric induction model about 18 months ago, the Corrys crew couldn't fit it because they weren't gas safe registered. (Although we'd told Currys in advance that the gas supply would need capping off or reconfiguring.)

Never mind, said Currys, and a couple of days later they sent the right fitter round and it was all sorted. No extra charges for cosing off the gas supply.

If you do buy an induction hob, don't buy the type that plug into a 13 amp socket. You'll only persuade about two and a half rings of the hob to work properly at any one time, because they pull down more amps than the ring main can supply, so then the hob will throttle itself back a bit and then you'll be saying a lot of bad words. Some friends of ours bought a plug-in induction hob last year, and since they're veggies, they often depend on having three/four rings on the go at once. Much swearing! A "proper" induction hob (with fast boil rings) needs a 40 amp cable, such as the one that's probably supplying your new oven.

OTOH, I see from your opening post that this cooker is for your dad. If he's unlikely to want to work with more than a couple of rings at once, you might get away with a 13 amp plug-in.


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