Gas pipe run help

[Feeby100]

He is trained and works on lpg yes 

this is the stuff

[Tony Brooks]

7 hours ago, Feeby100 said:

He is trained and works on lpg yes 

 

Trained, may be, but does he hold his Gas Safe ticket of LPG and Marine? If he is not gas safe registered for both LPG and Marine then any advice he gives must be treated with suspicion and verified in the ISOs related to marine gas work that Alan linked to.

[Alan de Enfield]

9 hours ago, Feeby100 said:

He is trained and works on lpg yes 

 

Someone can be trained and work on LPG on caravans, or cars, or houses etc but he is not allowed to work on boats without a separate qualification (licence endorsement) is needed.

Edited June 12, 2022 by Alan de Enfield

[Tracy D'arth]

Boy Oh Boy you will have fun working that through in a boat. Then you will have to find the correct compression fittings with copper olives that reduce down to the sizes of the appliances. Bulkhead fitting in 15mm? Not sure.

The plastic coating is completely unnecessary too. Not much plaster or soil in a boat.

Edited June 12, 2022 by Tracy D'arth

[Alan de Enfield]

1 minute ago, Tracy D'arth said:

Not much plaster or soil in a boat.

 

Maybe 'nightsoil' (particularly if the are 'composting' on board !

 

 

 

 

[Tracy D'arth]

1 minute ago, Alan de Enfield said:

 

Maybe 'nightsoil' (particularly if the are 'composting' on board !

 

 

 

 

Like a carp on a hook, I knew you would come on with some juvenile lavatory humour, its all too prevalent on here. Quit sniping my posts please.

Its way off topic as well.

[ditchcrawler]

12 hours ago, Feeby100 said:

He is trained and works on lpg yes 

this is the stuff

Isn't that what they use for houses that have gas cookers but no mains gas. I use to install gas with 361 stainless at 1500 psi but wouldn't use it in a boat

[Alan de Enfield]

Just now, ditchcrawler said:

Isn't that what they use for houses that have gas cookers but no mains gas. I use to install gas with 361 stainless at 1500 psi but wouldn't use it in a boat

 

 

It is similar to what our house is 'wired up' with but ours is quite a bit bigger - 1" at a guess

 

(LPG tank in the garden, no mains supply)

[MtB]

13 hours ago, Feeby100 said:

He is trained and works on lpg yes 

 

 

 

That wasn't the question.

 

Lots of gas bods are trained to work on LPG in houses, mobile homes and "leisure accommodation vehicles" including me, but there is a separate an additional qualification to work on "LPG Boats".

 

You need to find an installer with the "LPG Boats" ticket which very few hold.

 

 

[Feeby100]

Ok I find out thanks what he has in qualifications and certificates

so may be buy it with out the plastic cheaper as it not cheap as you see in pic I put

there must be 15 mm fitting that Reduce

 

[Alan de Enfield]

13 minutes ago, Feeby100 said:

Ok I find out thanks what he has in qualifications and certificates

so may be buy it with out the plastic cheaper as it not cheap as you see in pic I put

there must be 15 mm fitting that Reduce

 

 

But you will not know what size to but until you have actaully worked out your pressure drops from the table I posted.

 

Would you actually go and buy a new tyre for your car without checking what size you needed ?

 

How does 'your expert' know what you are installing and the appliance input and actual  length/distance from the cylinder ?

 

Remember to read note 3 about minimising (not maximising) the pipe size.

Edited June 12, 2022 by Alan de Enfield

[Tracy D'arth]

You have admitted that you don't know the outputs of the hob and oven yet. You are not in position to work out pipe sizes.  You must not over size substantially as you increase the volume of gas which is  a bad move. !5mm pipe will be a bitch to install. I would bet you need smaller and hence cheaper and better pipes.

 

Your gas expert does not impress me if he just wants to go as big as possible unnecessarily, instead  of doing the correct calcs.

[MtB]

There is another important factor we don't know. When was the boat built? 

 

If before 1998 and prior to falling in scope for the RCD, then you can install whatever pipe you like provided it is suitable for gas and doesn't leak. I know someone with an old boat piped up in 15mm domestic rigid copper and it has passed BSS every time for 20 years. BSS bods don't seem to care as long as it doesn't leak. 

 

If OTOH if it falls under RCD or RCR, you need to do it properly.

 

 

[Feeby100]

Hello right this is what I will have 

the run form the gas locker to last appliance which is the Aide 2928 boiler 50 ft 

So it’s hob then oven and boiler last 

the hob is about 38 ft from locker 

 

 

[Alan de Enfield]

 

Ok, I provided you with the table to work out your pipe size so what is the problem now ?

[Feeby100]

I don’t have a problem sounds like you do 

I was ask to give the item and Tracy d arth was kindly doing it for me 

 

that’s why I posted it ok with you boss 

[Alan de Enfield]

34 minutes ago, Feeby100 said:

I don’t have a problem sounds like you do 

I was ask to give the item and Tracy d arth was kindly doing it for me 

 

that’s why I posted it ok with you boss 

 

 

You learn things by doing them yourself - you never learn from someone else doing the work for you. OK ?

[Feeby100]

10 minutes ago, Alan de Enfield said:

 

 

You learn things by doing them yourself - you never learn from someone else doing the work for you. OK ?

Not really ok

 

[PaulJ]

@Feeby100 If you are stuck for Gas Safe geezer you could try Dan Bullen. Highly regarded and  knows his stuff.

 

[MtB]

So we now know the oven an hob have a total heat input of 9.2kW

 

What's the heat input of the Alde boiler you mentioned? 

 

Anything else to be attached to the gas line? And like what Tracy asked previously, are all three appliances to be on the same side of the boat or is one on the other side? This is IMPORTANT and needs answering (if you haven't already!)

 

Blood from a stone.....

 

 

 

 

Edited June 14, 2022 by MtB
Spilling.

[Feeby100]

5.4 kw output that all I can find 

The hob and oven one side and boiler at end opposite oven so just 4 ft across 

Thanks Paul j 

 

[David Mack]

1 hour ago, Feeby100 said:

The hob and oven one side and boiler at end opposite oven so just 4 ft across 

So how will the gas get from one side of the boat to the other? Pipe across the boat in the kitchen area (not passing through the bilges)? Or separate pipes the length of the boat either side?

[Tony Brooks]

15 minutes ago, David Mack said:

So how will the gas get from one side of the boat to the other? Pipe across the boat in the kitchen area (not passing through the bilges)? Or separate pipes the length of the boat either side?

 

It could go over the roof by the front bulkhead. I think more detailed info is required, including accurate pipe run lengths.

 

Edited to add: or across the boat in the angle between the floor and front bulkhead and behind the front steps (assuming a fairly typical layout).

Edited June 15, 2022 by Tony Brooks

[Feeby100]

Yes it go across on the bulk head behind unit and step 

[Tracy D'arth]

34 minutes ago, Feeby100 said:

Yes it go across on the bulk head behind unit and step 

Which side of the forward?      gas locker does the pipe exit from?  Or would it be better to come out from both sides of the gas locker?

Which side is the boiler? Which side is the oven/hob?

Distance down the boat from front gas locker bulkhead to boiler?

Distance down the boat from front gas locker bulkhead to oven/hob?

Any mid hull bulkheads in the way on either side?

Edited June 15, 2022 by Tracy D'arth