low gas inlet pressure? is this a major problem???

[joe-90]

Who's not worthy? Stick to fitting door bells!

Bet your good with bell ends?

Not little ones like yours. Thanks all the same for the offer, darling.

 

[joe-90]

But we're talking about gas supplied at 20mb not electricity at 240v. You can only use an analogy between the two so far...

Go and give advice on something you understand for a change

Yes. Pressure and volume. Water, electrics, gas etc - all follow the same laws of physics.

 

[joe-90]

If you know the pressure at the boiler and pressure at the meter, then surely even a lowly plumber can work out the pressure drop. Hint: It won't be anywhere near as big as you lot are talking.

 

[Biggles..]

Who's not worthy? Stick to fitting door bells!

Bet your good with bell ends?

Not little ones like yours. Thanks all the same for the offer, darling.

Bet you look real cute in your little black glasses, licking the the window of that special bus that takes you on your days out from the home.

Share a room with Dr Drivel?

 

[ecowarrior]

If you get a length electric cable and put 240 volts down it and then make half of it a double thickness, do you really think the voltage (pressure) will rise? It can carry more current (volume). Gas pipes follow the same laws of physics. They are universal laws.

Have u any idea how foolish this makes you look?

If you don't understand science - then do please be quiet.

Well I am always keen to learn so perhaps you could explain the relevance of these two examples and how they comply to the same 'universal' law? ( and which universal law that is? Ohms law perhaps or Boyles Law or even Kerchovs law - maybe even Dennis Law?

 

[joe-90]

The relationship is always the same.

 

[Dan Robinson]

:sitbackandwatchwithamusement: emoticon

 

[gaswizzard]

working pressure at the boiler was only 15mbar (which he said was a bit low), he checked it at the meter and it was 19mbar . it is 22mm, about 13m long and I think it has got 4 elbows)

That'll be a drop of 1.6 mb , not sure how it's 4mb. , unless you got a weird tape measure.

would replacing a 7m section at the start with larger diameter help?
.

Replacing the first 7 m with 28mm should put it around 0.97mb loss.

Better confirm it with the puppet first.

 

[plumbswe]

Dennis Law haha

 

[Biggles..]

Daves probably keeping out of it as there's no use for the whole house calculator, stelrads stars or uk copper board small piping in this thread yet.

 

[bengasman]

....Yes. Pressure and volume. Water, electrics, gas etc - all follow the same laws of physics.

Yes, and artificial eyes are obviously made of glass; got to be, otherwise you couldn't see through them.

"Gas and water follow the same laws of physics"... Tell me, Joe, how would you apply Boyle-Gay-Lussac to a pint of water? You can start off with how you suggest we squeeze it to half it's volume.


Darwin Award for January 2013 once again goes to Joe-90.

 

[gasbanni]

Fortunately Joe 90 is on my ignore list so unless someone quotes him I don't see his clap trap. He never answers a legitimate question anyway.
now that disposed of ~


All you have to do is see if your boiler does what its supposed to do on its maximum demand.
All you need is a thermometer and a means to measure the flow rate stop watch and a bucket in the bath will do.

Run a hot tap do you get the temperature rise and flow rate on maximum that you're supposed to ? ( All this info is in the boiler book) If you do there isn't a problem.
Measure the cold temp measure the hot temp measure the flow.

Yes the pressure might be down a little but it is possible that its working fully to spec, sounds contradictory but Ive had it loads of times where the pipe sizing is a little incorrect but everything is working correctly.
No need to lose any sleep over this ......joe 90's posts yes, but probably not your boiler installation.

 

[Biggles..]

Thank god the saviour of the gas industry has arrived.... We can all sleep safe in our beds!

 

[Dan Robinson]

Google and Wiki must be going into meltdown... or has Joe's brain imploded?

 

[gaswizzard]

Thank god the saviour of the gas industry has arrived.... We can all sleep safe in our beds!