Gas flare-ups

Submitted: Tuesday, Aug 29, 2006 at 16:17

ThreadID: 37234 Views:2074 Replies:5 FollowUps:6

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darcla

Thanks to all those that replied to post 37168 sorry I have been so slow to respond . Any way here I am.
Jet blockage has not been a problem since I fitted the next size up Jets 6 years ago
flare ups have & still are.
Have been talking to the Experts in Boc gas & also Kleenheat gas Who all assure me that there is no way that gas can condense & return to a liquid state in the hose. That is what I thought was happening.
I keep getting told that the problem is because I am using it direct off a 9 kg caravan bottle. The stove is designed to run on high pressure & will not even light when a low pressure regulator is fitted.
Thanks every one who has contributed ideas. I have tried pretty much everything that has been suggested & have had no success so may be l will have to save up & buy one that will work off the caravan bottle.
Cheers Bungarra

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Reply By: Member - Cruiser (NSW) - Tuesday, Aug 29, 2006 at 19:49

Tuesday, Aug 29, 2006 at 19:49

I may be wrong, and please tell me if I am, but since when has there been a 9kg bottle "specifically" for caravans. When you go in to camping stores/Big W or wherever to buy a 9kg bottle you never see them stacked in different piles as "Caravan" and "other".

Maybe I have misunderstood the problem, or what you have been told, but to my way of thinking, a 9Kg bottle is a 9Kg bottle and the regulator that is fitted to it must suit the appliance that the bottle is to feed.

I had this problem you are describing when I had my first camper trailer and finally resolved it by shortening the length of the hose from the appliance to the regulator. It really only seemed to happen first thing in the morning. I used to have to crack one of the fittings to release any residual gas left in the hose and after the stove was right and would not flare up.

AnswerID: 191688

Follow Up By: darcla - Tuesday, Aug 29, 2006 at 20:37

Tuesday, Aug 29, 2006 at 20:37

Hi Cruiser.
It was my terminology which has caused your confusion. I cant see why length of hose should have any bearing on the problem as you see many caravans & campers that have longer hoses than the 1.5 metres that I have. I can not use a regulator in my application as previously explained.
Thanks for your advice .
Cheers Bungarra

FollowupID: 449530

Follow Up By: Member - Cruiser (NSW) - Tuesday, Aug 29, 2006 at 20:48

Tuesday, Aug 29, 2006 at 20:48

Fair enough, and I must admit, I did not read the previous post, and therfore did not have all the facts.

FollowupID: 449531

Follow Up By: Member - Robyn J (QLD) - Tuesday, Aug 29, 2006 at 20:58

Tuesday, Aug 29, 2006 at 20:58

Had the same problem with a 4.5 bottle. Always have the problem when the bottle is full. After bottle is about half full of gas ithen no problems. From memory a gas place in Brisbane told me it was something to do with valve on the gas bottle but for the life of me I cant remember what he said.
We replaced one stove because of the problem only started to happen to old stove when we brought a new hose to replace the cracked hose from an old stove of about 25years or so. Ended up having the same problem so replaced with a new stove but was using the new longer hose and not the one supplied with the stove but had same fittings and still had the same problem. Very frustrating especially when you accidently drop the metal gauze in the grass and you spend ages looking for it to replace it once you had cleaned out the jets.
Cheers

FollowupID: 449535

Reply By: derraux - Tuesday, Aug 29, 2006 at 22:29

Tuesday, Aug 29, 2006 at 22:29

Darcla
I cannot believe what i have just read my family has owned a camping store in perth W.A for 23years and gas condensing in the line is exactly your problem, Using your stove off a 9kg bottle is not the problem here. Jet blockage will become a problem if you keep getting flare ups. Unfortuantly i am not a paid member and that does not give me the right to advertise my store but would quit happily answer any more of your questions on this matter if you would like.
Having read your post again the other thing i would have to ask you is you say its worse in the morning but if it seems to happen all time it could be that you have put jet too big for your stove in or they are not tight, a jet in a high pressure stove can leak more gas from not being tight enough than will come out the middle.
I wish you luck with your stove if you want other info send a reply i will get it and respond
Derraux

AnswerID: 191710

Follow Up By: darcla - Tuesday, Aug 29, 2006 at 22:59

Tuesday, Aug 29, 2006 at 22:59

Hi derraux.
I am certainly interested in pursuing this problem I am having as I am at my wits end to try & solve the problem. Being a pensioner I just cant run out & buy a new outfit.
Currently I have the cooker at Barbecues galore in Geraldton to see if they can come up with any thing. Although I don't hold a lot of hope. I will be coming to Perth in the next few weeks for the berth of another grandchild & to help look after the other 2 little ones. May be we could get together.
Thank you for your reply.
Cheers Bungarra

FollowupID: 449591

Reply By: derraux - Wednesday, Aug 30, 2006 at 11:04

Wednesday, Aug 30, 2006 at 11:04

Bungarra
Send me an email and i will forward the contact details to you
derraux at iinet dot net dot au
cheers derraux

AnswerID: 191785

Reply By: looking_4_BJ42 - Wednesday, Aug 30, 2006 at 16:20

Wednesday, Aug 30, 2006 at 16:20

Hi All

All gas powered stoves and laterns will flare when liquid enters the combustion chamber, this happens due to the cyclinder being tiped sidways as to allow the liquid downstream of the cyclinder. I didnt really understand what was mentioned above but it goes without saying that you are NOT using a reulator due to those stoves being HP.

This makes them very dangerous. I over came this problem by buying Coleman Duel Fuel gear, yea it is pricy but they last forever ( well 8 years so far with NO maintance and little cleaning) and when you tip them over they dont flare at all. I have tested this multiple times and it is true.

AnswerID: 191842

Follow Up By: darcla - Wednesday, Aug 30, 2006 at 19:49

Wednesday, Aug 30, 2006 at 19:49

Hi .
The gas cylinder always remains upright so in theory no liquid should enter hose.
I agree that flares are probably caused by the gas condensing in line but even when I burn all gas from it still does it . so if it is condensing in the line which the experts say there is no way it is possible how do I go about preventing this.
my theory now is to fit a small orifice or a jet in the line which should cut down flow & also reduce pressure a bit but not to the extent that a low pressure valve does. Anyway thanks to everyone on their advice.
Cheers Bungarra

FollowupID: 449775

Reply By: Rod - Wednesday, Aug 30, 2006 at 17:16

Wednesday, Aug 30, 2006 at 17:16

Have you tried a hiclone in the gas line ?

Seriously, when I started turning the gas of at the bottle and letting the rest burn off at the end of each night, this problem went away for me.

AnswerID: 191850