Gas Hob advice

KFW

Hi,

We recently brought a house and have been told the Gas hob and oven needs replacing.  The 2 of the 4 gas hob rings don't light up and the oven has a big hold in the back.
The Gas hob is a Cable C742, i have no idea which size i should be buying and would be grateful for any advice.  I called Currys who couldn't advise on the gas hob as their gas engineers do not widen the hole if i brought the wrong one.  I did give them the dimensions too.
The Cable manual states cut out dimension W553mm D473mm /  Overall dimension W590mm D 510mm
Should i be looking at the overall dimensions or looking into the cut out dimension?

Any advice would be great
Thank you

Bendy_House

Cut-out, I'd say - that's the part that'll need to match.

It'll take some finding - you'll likely need to download the installation instructions for lots of shortlisted models until you find the correct match!

Not worth considering going larger? Say a 750mm-wide 5 burner? You might love it.Yes, you'll need a handy person to enlarge the hole, but it might not cost as much as you think. And if it's for a significant improvement instead of a 5mm shaving, it could be money well spent.

Bendy_House

Caple's 744 is 1mm and 3mm hole size difference, but importantly is smaller by these amounts than your current hob, so should fit?

Bendy_House

Ditto their C786 - hole size 553x470.

https://www.caple.co.uk/support/manuals/hobs/

KFW

Thanks Bendy,
I’m happy to give the shaving ago however I have been told that it being a gas hob I will need a gas engineer to fit it.  I will probably check if other online companies fit larger sizes.  Would prefer to convert to electric induction hob but I don’t think the power supply wire is enough
Will keep exploring
Thanks

FreeBear

KFW said: Would prefer to convert to electric induction hob but I don’t think the power supply wire is enough

Depending on the induction hob, and the distance from the consumer unit, 6mm² may be big enough. If you are a really long distance from the CU and/or you want six or more heating zones, 10mm² might be required.

Just be wary of the four zone hobs that come with a 13A plug attached (e.g. Cooke & Lewis CLIND60ERF) as you'd only be able to use two zones at full power at any one time.

macman

KFW said:

Thanks Bendy,
I’m happy to give the shaving ago however I have been told that it being a gas hob I will need a gas engineer to fit it.  I will probably check if other online companies fit larger sizes.  Would prefer to convert to electric induction hob but I don’t think the power supply wire is enough
Will keep exploring
Thanks

Why? Running costs for an electric hob are 350% higher than mains gas.

diystarter7

OP
Please note if you have drawers underneath your gas hob, be very aware of the depth.
About 8 years ago we go a new kitchen and  a 5 righ hob. When we had the plans drawn up re kitchen we just chose a 5/6 ring hob as we were undecided. Anyway we ordered the kitchen and then decided for a hob without consulting the kitchen planner
as new kitchen and hole to be cut out in granite. We chose a bulky Smegg hob, look great until they tried to fit the drawer/s under it the top one caught a clip that was removed and then beyound that it caught something else on the hob that could not be removed. I had to cut the soft closer on the drawer pannel and do a weld on top. So its not just the aperture but the depth as well if you have one of those proper drawers under it with the soft closing mechanism built into the side panel of the drawers.

Bendy_House

KFW said:

Thanks Bendy,
I’m happy to give the shaving ago however I have been told that it being a gas hob I will need a gas engineer to fit it.  I will probably check if other online companies fit larger sizes.  Would prefer to convert to electric induction hob but I don’t think the power supply wire is enough
Will keep exploring
Thanks

Yes, you need a GS to fit it.

I'm pretty sure - but you'll need to confirm - that either of the two gas Caples I linked to will fit with no shaving required. (I 'suspect' that these two will be ok depth-wise too, but DIY's point is worth checking. On that point, are induction hobs thicker? I don't know.)

That induction hob surprised me - I thought they consumed HUGE power. But check FB's point if it's important (which I suspect it will be...)

fenwick458

Induction hobs are actually very efficient. And i've fitted several on a 4mm T&E 32A circuit, you can even get them that come on a 13A plug 

Bendy_House

Cheers, Feb.

I like the idea of them - complete flat glass, fast control, and stuff, and was seriously considering one for my soon-to-be kitchen revamp. But I'd need a 5-burner, and the kW was pretty scary.

Astonished a 4-plate can work off a 13A plug. FB said summat about reduced output if using more that two rings. Sounds a clever way around things, since plates will often just be simmering stuff.