Natural gas detector?

[Vicario]

Is there a natural gas detector available for domestic use? Friend's elderly mum is absent-minded rather than suffering from dementia etc. but occasionally leaves the gas hob unlit, causing gas to escape. Is it possible to fit a device to the hob so that this can't happen anyway? Or are there new hobs now that have such devices as standard that could be fitted? Ironically, she has a shiny new (plug-in) electric oven beneath it but my pal doesn't think that her electrics would be up to having an electric hob too.

 

[picasso]

All new hobs have a built in safety device to stop this happening, so new hob is the way to go.

 

[opps]

As above, new hobs have thermocouples that will only allow the gas out if the flame is lit. It will not be possible to accidentally leave the gas pouring out.

 

[Vicario]

Ah right - I'll tell him. Is the swap over a simple job or does it depend on the make/size of the original one? I'm guessing there's a standard size, although I get the impression that it's quite old. I'll try to get some pictures/measurements over the weekend. Needs a GS engineer too, I expect.

 

[CBW]

Find out the make and model of the hob, might already have it? Depending on the type, some has is allowed to come through before the flame failure/supervision device kicks in

 

[Vicario]

I finally went round to his mum's house to measure up. Her hob is an AEG installed in 2008. Measures 50 by 58 cm. I should explain that he's not really into the internet so he's asked me to have a look online. There are a lot that measure 51 by 59.5 or 50 by 60 etc. Will the odd centimeter matter when it comes to fitting? (Sod's law, I found two with exactly the same measurements as hers but she doesn't like them!) They all seem to have flame failure now, which is the main criterion. Interestingly, she attends a memory clinic and they told her son that this happens a lot (leaving a burner on or not lighting it properly).