Quartz splash back and gas hob

[Anxiousmum]

Would be really grateful for any shared wisdom. We have had a new kitchen installed with a quartz worktop and quartz splashback behind the NEFF gas hob. The gas fitter thinks that the cut-out for the gas hob is incorrect, too close to the splashback (less than the 50mm recommended by the manufacturer). The quartz worktop and splashback supplier is trying to fob me off. I guess the risk would be of flame scorch marks - has anything like this happened to anyone or is it just a theoretical risk?

It could be that excess heat could cause cracking. What do the fitting instructions for the hob say?

found this out when the kitchen was in and we started looking at glass splashbacks. Looks like a standard worktop is not deep enough (front to back) to allow space for a standard gas hob and still give the distance recommended; I've seen it as 75mm.

forget the glass and put up tiles. Much easier and cheaper. We also used tiles as 'upstands' as actual upstands cost a bomb.

Yes, I think thats probably right. Unfortunately the worktop and splashback are already in place. Manufacturer (NEFF) says 50mm and the reality is only about 40mm - I wonder what the real risk is, worth taking the chances?

Quartz is not combustible so the gas regs 50mm does not apply. However it's possible the manufacturer wouldn't guarantee it but that's up to you.
Same goes for tiles, they are also not combustible.
I'm not a builder or a gas fitter though.

not a fire hazard but a cracking hazard - tiles cope better but a glass splashback may not be designed for the heat.

I also find that my bigger pans go very close to the splashback anyway, and they definitely don't allow for that with glass.

Hi I have a new kitchen installed and I have the same problem.
Kitchen designer is blaming the fitter but I can’t see it accounted for in the designers plan