Gas hob installation

Ruski

In a nutshell: Freestanding appliances are just that - standing there of their own free will... and will not complain one little bit if someone decides to move it, tip it up, lift it up to get little Johnny's marbles from under it... so for safety's sake it is 'plumbed' up with a flexible connection to allow for this exact possible movement (doesn't matter if it's not moved for 50 years!)

A gas hob that is 'fixed' into a worktop is less likely (although I agree in theory it could be moved), and as such is treated as a fixed appliance and therefore hard piped (those is just the rules guv'ner), just the same as your boiler (hopefully!) is.

If you consider what could happen if you hard piped a freestanding cooker then you'll understand why the regulations allow for the 'flexible' connection of such things but not fixed appliances.

HTH

Russ

lemontart

don't be a fool with your life to save a few quid, get it done by a gsr .

Seronera

terryw wrote: »

Thanks for that. What are these good reasons. I am curious and genuinely interested.

Thanks

So you can wheel it out and clean it and retrieve all the stuff you have dropped behind it. You should see some of the stuff I find working on cookers. A hob is a fixed appliance, a free standing cooker is not, therefore there is no practical reason for a flexible on a hob. It doesn't go much deeper than that.

As I said in a previous post, the regulations exclude flexis on hobs unless the manufacturers instructions say otherwise. M.I.'s is the only exception that over rules legislation. It can create a nonsense I know, but there are one or two hobs that allow a flexi because their instructions say so. If its not mentioned its not permitted by GSIUR

unclebulgaria

If the manufacturers instructions say you can use a flexible hose to connect their hob you can. Normally its rigid because its not moved or pulled out. The reason a flexi hose isn't used is because an isolation valve is required for reasons of repair/service to the hob. It is a requirement that any fitted oven under a hob is removed to inspect any service valve during a LL Gas Safety Inspection if that is the service valves location.
If I come across a hob connected with a flexi hose as long as its not damaged or fitted badly I can only list it as Not To Current Standards as its a recognised gas fitting, that's a recent change.
Competency means you have had some form of instruction in that field but not necessarily registered. Just thinking you are competent because you can do a bit of plumbing is not enough. You can do pretty much anything you want in your own home but if someone is injured by your work you will be legally responsible.

southcoastrgi

use an RGI it's not worth yours or anyone else's life,

now that being said there is alot of incorrect info on this thread,

it is perfectly legal to use a gas hose on a hob UNLESS the installation instructions state it MUST be connected by rigid pipe or the hose is likely to come into contact with temperatures above 70d, isolation comes in the form of the bayonet fitting it doesn't need a seperate gas isolation tap, also during a gas safety cert/inspection it is visable pipework so the oven doesn't need to be removed, sorry to the RGI's that have commented but my sig applies to you as well

unclebulgaria

Now I have to clarify my service valve statement. Agreed a flexi hose being disconnected is the same as the service valve being turned off, probably better actually because it doesn't leave an open end but, scrgi have to agree to disagree about not removing the fitted oven under hob. Had to report another Gas Safe engineer who missed a ID appliance during Safety inspection (didn't want to but I've asked him 5 times to please improve his crappy 5 minute inspections anyway...) I had to be present during the local Gas Safe inspectors visit and stood in another room whilst the Inspector went through the complaint and overheard him say "why didn't you remove the fitted oven to check the hobs isolation valve?" his answer wasn't right and he got a telling off. I always do it and always have. I was taught it comes under checking safety devices.