estimating installation volume?

[sterry_12]

Hi lads. just doing my gas safe qualification training, and was wondering about estimating installation volume, do you have to do this when you go to a house to install something small like a new built in hob? just doing my write up of the job today and we didn't do it but by the book am i suppose to do it?

cheers lads,

 

[SimonJohns]

You can't estimate Iv.
It should be done proper

Is this in regard to not exceeding your Dom Iv of 0.0035?

 

[sterry_12]

yes. so when ever i go to work on existing pipework in houses i should do the workings out for IV?
sorry if its a stupid question, im learning lol, plus when i go out and work wit gas safe people nobody seems to do it.

 

[SimonJohns]

Lol. for your exam you will need to work it

If you got a u6 6m 28 6m 22. You'll be fine

If your doing something excessive 18m 28 18m 22. Then I would get the slide rules out

Corgi do a handbook range and there is one they do for Iv on a sliding rule

If you are working on a u16 and or with 35mm pipe. I would use it

You will get the feel for it

 

[sterry_12]

cheers bud! its mostly 22mm and U6 or E6 i've been working on, very rarely used 28mm round here. its good to know that i will be asked to work it out when im tested! cant believe most don't it. cheers.

 

[SimonJohns]

cheers bud! its mostly 22mm and U6 or E6 i've been working on, very rarely used 28mm round here. its good to know that i will be asked to work it out when im tested! cant believe most don't it. cheers.

If you got an e6 you can fit loads of pipework. The only prob is flowrates and pipe sizing.

But that is also experience. You'll get there.

Keep up working hard and it will pay for itself

 

[johnnyplumb]

You cant estimate i.v
It should be done proper

Is this in regard to not exceeding your Dom Iv of 0.0035?

i can do it, you need to get yourself some more experience

 

[SimonJohns]

What do you. Mean you can do it?

You can estimate. Or do you know when your roughly below the limit.

 

[REDSAW]

he can read the chart in the viper book.lol.

 

[kirkgas]

an install with an E6 meter can have approx 90m of 22mm pipe, so rule of thumb kicks in a lot for me, and a quick measure usully confirms there isnt 90m of 22mm pipe in a domestic job, if there is a u16 and 35mm pipe then a quick *** packet calc will tell me if i can work on it

 

[sterry_12]

fair enough, experience tells! thanks lads!