Help on Gas Hob Connection pls...????

[Kaiser Sose]

Guys, Redoing my kitchen and want to move the Gas Hob 400mm to the left. The existing hob is directly connected to a vertical piece of 15mm copper pipe that is on the "switched" side of a gas c*ck - i.e. there is no flexible hose on the existing hob.

I want to install a new type of Gas Hob - a Siemens one. However, I do not want to have to move the Gas Cock 400 mm to the left because that would involve me cutting the "mains" side of the gas c*ck. In other words I would like to leave the gas c*ck where it is, saw through some of the "switched" side of the 15mm vertical pipe, attach a flexible hose to this and then route it to my new hob.

Is what I am saying sensible or even legal? I am a DIYer not a Corgi man.

This is the hose I am looking at:

How would I get this onto the 15mm pipe with a compression fitting?

[Will]

Hi Steve,

I've just finished re-doing my kitchen, but before I started I searched this group along similar lines.

The answer to your question is, unfortunately for you perhaps, no.

You can't have a fixed appliance (i.e. a hob) on anything but fixed pipe work.

But, you can still do your own gas work, so you could legally switch the gas off at the meter and insert a cap, then re-plumb your gas as needed, connect it back up and test it with leak detection spray/washing up liquid solution.

Or, you could do what I did and clear the room of all obstructions, mark out exactly where you want the pipe to go, having chased out any walls that need doing, and pay a corgi to do it for you. The bloke I got to do mine came to have a look, saw that there was about 10mins work, and did it there and then. Bosh! Cost me about

20quid and a couple of cups of tea.

HTH,

Cheers, Will

[EricP]

Have you ever had anyone turn up with a clipboard demanding to see your hob connection. :)

[Kaiser Sose]

Guys, Thanks for your comments. I'll leave the hob where it is I think !!! Cheers,

[The Medway Handyman]

I've never seen a hard piped hob either.

[Ed Sirett]

Please see gas fitting FAQ. Frankly the OP is probably not ready to take on gas work yet.

Fixed hobs have fixed pipe work.

EricP: I meet hobs supplied with fixed pipes and flexible hoses in about equal proportions. Gas fitting is done to the standards (see links below) not because it might or might not be inspected but because it is the right thing to do.

Would you suggest making an irregular electrical installation (say using the wrong size or type of cable) just because "no one with a clipboard" was going to see it?

[thankyousam]

I bought some of this detection spray, but the instructions on the can are a bit vague. I assume given contact with gas the liquid/foam will solidify, otherwise it just runs off as liquid?

[Andrew Gabriel]

It froths up into a visible lump of cuckoo spit. It's very runny so it gets right in to fittings. There's no chemical reaction, it doesn't set, and you can wipe it off (e.g. after tightning up a compression fitting to see if it's still leaking). You can use it with any gas pipework, not just natural gas. I used it alot when installing my radiator pipework, by pressurising the pipework using a bicycle pump, so I could fix any leaks before making the pipework wet.

[Kaiser Sose]

(snipped) Wow, that's a good idea. How do you connect a bike pump though and isolate the section of piping you are working on? Otherwise you'd be pressurising the whole system - you'd have arms like Schwarzenegger !!!!

[Lobster]

I need to do some of this shortly and have collected together a small collection of pushfit fittings and adaptors etc to do it with... but how do you attach the bike pump to the pipework? Haven't come across a Schraeder valve -> pushfit fitting yet!!

David

[EricP]

I have many times and a noble work it is.

Probably.

They do when practical, but get flexible connections as it is not practical. Mine would have required major dismantling of tiling and units. It got a flexible connection and was installed by a corgi bod. Thank diety it is on one as well, as alterations have necessitated it's removal on several occasions. To have had to call in a corgi just to disconnect and reconnect it would have cost a ridiculous amount.

[EricP]

:)))