Gas Hose Length

briantimber replied on 19/03/2017 15:33

Posted on 19/03/2017 15:33

Just received our new gas barby similar to Cadac, on reading the instructions it states that a max hose length of 1.5m is used to connect.

As I intend to use this alongside M'home using the Safefill bottle, but on the other side to the gas locker, I intended to use a length of 4.5m.

As the internal appliances all have more than 1.5m pipes to them and bear in mind that I'll be using the barby on its own, will there be a significant pressure drop at the barby, thus rendering it useless?

All comments greatly appreciated.....cool

SteveL replied on 19/03/2017 17:34

Posted on 19/03/2017 17:34

We have certainly used ours on camping gaz, we still have one of the large cylinders from our camping days. Although an expensive way to buy gas, they take up relitively little room / payload, and with the Cadac last for ages.

Tinwheeler replied on 19/03/2017 17:54

Posted on 19/03/2017 17:21 by SteveL

I can certainly get to it fast enough TW, as I use the extra length to run it along the floor, rather than to get 3 metres from the van. I am uncertain how it would burn back along the hose though. The hose is filled with 100% gas. It will certainly burn where it comes out and mixes with the air and even explode if the mixture reaches certain percentages. Perhaps there is a gas expert who can shed some light on the subject.

Posted on 19/03/2017 17:54

Your choice, Steve.

ABM replied on 19/03/2017 22:31

Posted on 19/03/2017 17:21 by SteveL

I can certainly get to it fast enough TW, as I use the extra length to run it along the floor, rather than to get 3 metres from the van. I am uncertain how it would burn back along the hose though. The hose is filled with 100% gas. It will certainly burn where it comes out and mixes with the air and even explode if the mixture reaches certain percentages. Perhaps there is a gas expert who can shed some light on the subject.

Posted on 19/03/2017 22:31

Not  a  "Gas  Expert"  Steve,  but  I  have  seen  an  acetylene  bottle  with  the  hose  burning  !!  The  hose  had  been  accidentally  draped  over  the  exhaust    of  a  compressor  'til  it  burned  through.

A  knowledgeable  gent  strolled  out,  bent  the  hose  double  in  his  bare  hands,  the  flames  extinguished  and  he   casually  shut  the  bottle  valve.  It  was  only  then  that  he  shewed  any  emotion,  and  a  fine  command  of  the  English  language  as  he  berated  the  careless  construction  engineer  !!

As  long  as  there  is  pressure  in  the  bottle  the  hose  will  melt  back  slowly  rather  than  burn  as  we  understand  it.  Then  when  the  bottle  is  virtually  empty  the  pressure  will  drop,  obviously,  and  the  flames  can  go  back  towards  the  bottle,  and  should  it  not  be  switched  off  you  have  the  potential  for  a  "Big  Bang"

SteveL replied on 20/03/2017 09:57

Posted on 20/03/2017 09:57

Thanks ABM that's more or less what I assumed. I once had flames from the thread connector to the Cadac, when I had stupidly only hand tightened it, then got distracted. I quickly , turned off the supply at the caravan, which is actually a disconnect on our type, and of course it extinguished.

peedee replied on 20/03/2017 10:40

Posted on 20/03/2017 10:40

Calor recommend hose should not exceed 2 meters. I have had a dealer who reminded me of this and refused to sell me a longer piece.

peedee

ABM replied on 20/03/2017 21:20

Posted on 20/03/2017 21:20

For  all  the  Dealer  knew  PeeDee,  you  were  replacing  a  few  shorter  lengths  in  your  'van  !

MDD10 replied on 20/03/2017 21:47

Posted on 20/03/2017 10:40 by peedee

Calor recommend hose should not exceed 2 meters. I have had a dealer who reminded me of this and refused to sell me a longer piece.

peedee

Posted on 20/03/2017 21:47

Buy online then.  Better than the awning going up in flames which was the risk for me when using the full size awning

allanandjean replied on 20/03/2017 22:06

Posted on 20/03/2017 22:06

Hi Brian,for many years we had children with us on all our trips and chose to minimise the risk of one of them tripping, and pulling over the BBQ,by using a 6kg cylinder and short length of hose.

Whilst we do not always holiday with children now we find that being able to place the BBQ to either side, or end, of the van is very useful as is having a 'make do' supply while we sort a replacement for our 10kg gaslight.

briantimber replied on 20/03/2017 23:13

Posted on 20/03/2017 23:13

Hi a&j.

Thanks for your input.   As stated upthread, I intend to use a half full 5kg gaslite using the original supplied hose and regulator, until i figure a way to connect up an external barby connection to my main gas supply which is a Safefill. We should get a few meals out of a half full 5kg gaslite, so plenty  of time to work out and install my external barby point.......cool

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