Gas bible. G3 bible?

[Whn1]

Ok guys been gas safe for a few years now and always have my gas books to refer to for regs etc.
i don't have one for unvented, is there a decent one?

 

[lame plumber]

training guide or mfis

 

[Resolute]

Internet access and this site!

 

[nickelarsed]

Don't know if it's the best but I got given the corgi unvented hot water guide isbn 978-1-902632-57-5. It's got all the relevant info in it.

I doubt you'll find much you don't know in it though tbh

 

[GrahamM]

Download one of the clearest to understand MI's. They should be more or less standard across the board for basics containing most of the info required with diagrams.
See quite a few without any temperature cut out being wired, but most just the usual less than 300mm drop bellow tundish before any bend if tundish fitted at all.
At a Greenstar/Santon cylinder yesterday. No tundish and 15mm straight to outside from the TPRV.
If in any doubt about any issues you just need to recommend customer consults a G3 qualified plumber.

 

[Whn1]

Sweet, ill stick the mis then. Thanks

 

[buckley plumb]

Don't know if it's the best but I got given the corgi unvented hot water guide isbn 978-1-902632-57-5. It's got all the relevant info in it.

I doubt you'll find much you don't know in it though tbh

not a bad book but as most does not state what type of pipe if discharging into soil with d2

 

[Whn1]

not a bad book but as most does not state what type of pipe if discharging into soil with d2

Do you need permission from building control to discharge into soil?

Thats in my head for some reason.

 

[buckley plumb]

Do you need permission from building control to discharge into soil?

Thats in my head for some reason.

i think so but not sure if you can self certify

 

[rob2048]

I never understand how the tundish can be so small surely if a unvented cylinder properly let rip it be all over the place it splashes out if you open the valve to check it

 

[Whn1]

Agree but I think it's more to check if it's letting by. And drips are most commonly the start of problems.

 

[rob2048]

I sore some on a site a bit back they had come from the tundish into one of those antivac straits into 42mm waste pipe out into the stack I didn't think you could do that but it never got pulled by the inspector I got told there is another rule in the water regs which alowes it to be done this way

 

[Whn1]

Doubt in the water regs but if the pipe can withstand extreme temprature i believe it's acceptable but again I'm sure it's only if building inspector gives the nod, usually if there is absolutely no other option.

 

[mikegas]

I sore some on a site a bit back they had come from the tundish into one of those antivac straits into 42mm waste pipe out into the stack I didn't think you could do that but it never got pulled by the inspector I got told there is another rule in the water regs which alowes it to be done this way

This is acceptable it needs to be waste pipe thats capable of withstanding high temps not solvent weld

 

[Whn1]

What kind mike?

 

[mikegas]

Polypropylene

 

[rob2048]

It just looked like normal waste pipe I didn't look that close at it I don't think the antivac could take the heat I was surprised it was aloud like that when I did the course it had to be done in copper all the way to a drain or 100mm of the floor with a cage

 

[stratplus]

Did you not get given a book from the training course? I did bepec and was given a bpec training manual which covered all of the relevant info.

 

[Whn1]

Training course? It was more of 5 hours chat and exams.

 

[lame plumber]

I hate to say it bit chris watkins seems to be right about training nowadays!!!!!!!!!!!!!!!!!!!!!

 

[buckley plumb]

Did you not get given a book from the training course? I did bepec and was given a bpec training manual which covered all of the relevant info.

training centre i went made up their own was not that good even on the gas one they gave us their own made up book would have prefered the books by nic what most get

 

[Reg Man]

MUPVC manufacturered to BS5255 can with stand high temperatures and its solvent weld.

 

[stratplus]

Isn't it the solvent that can melt due the high temperatures though!

 

[Toxic Ted]

It just looked like normal waste pipe I didn't look that close at it I don't think the antivac could take the heat I was surprised it was aloud like that when I did the course it had to be done in copper all the way to a drain or 100mm of the floor with a cage

Same as that rob......i have seen the solvent weld used in new build flats so rang OSMA to enquire about high temp waste to which they said "no can do". When i asked why these building companies were using plastic, they said it was because they were puting their own guarantees into their build. Seems to me like if they are big enough they can do whatever they want and make it up as they go along.

 

[rob2048]

I thought it was for safety when you do your unvented they carnt tell you enough how dangerous it is if not done right