Cookers in camper trailers

Flappa, maybe you can help me with my problem?
For the last few years I have had major problems with my high pressure stove on my camper trailer.......but only on very cold mornings.
During the day it is OK but first thing in the morning it is dangerous as the flame flares up about a foot...very frightening. Why would this be?
Many thanks.

I dont profess to be an expert on this.

It would be to do with the cold temps. You are using unregulated pressure at probably very cold temps , and the stove simply cant handle it.

Butan Stoves (those Kmart, Big W jobbies) , also dont work properly in very cold conditions.

If someone can say what the EXACT reason is , I would be interested in knowing , but , I would guess (educated) , that the temp of the gas , and the unregulated nature , would be the cause.

I had it happen on a few occassions (and not really understanding why), prior to getting my low pressure stove.

What you are describing , is one of the reasons I bought the low pressure stove. I have camped in Minus conditions , and have had no problems. Flaring Stoves in a Canvas Tent area is a BIG NO NO.

Thanks for your comments flappa.
Do you know if there is any way to convert from high to low pressure as the stove is built in to the slide out kitchen in the camper.

No i dont think so , because they are quite different.

HPS use jets , LPS dont.

I would be surprised though , if you couldn't do a complete swap.

HIGHLY recommended in my opinion.

What sort of CT is it ?

Flappa, it is a JB brand, steel framed with stainless top etc.
I have looked at several new stoves (expensive?) and they are all too high by a few cms.
I would have to rebuild kitchen.

OK , yep , gotcha.

Sort of rock and a hard place.

Though , I REALLY like my Coleman ;)

Gas regs limit the length of hose to 1.2 m from memory. Pressure loss is dependent on length and pipe diameter although diameter is the biggest factor. It's actually pressure that is lost not flow, you can't put x litres
of gas in at one end and have y litres coming out at the other end (assuming no leaks) where would it disappear to.

How can you put say 10 l/min in one end and have a different amount coming out at the other end of a pipe of any given diameter.

"The gas doesn't go missing the FLOW rate is reduced as in the litres per minute of gas that is ables to pass through the restricion which in this case is the hose assembly"

You still haven't explained how flow is reduced by the hose. What goes in at one end comes out at the other, does it not.
I'm fully aware of the differences between pressure and flow rate.
Pressure will drop continually along a length of pipe of equal diameter due to the effects of friction. The longer the pipe the less pressure at the end of it, the flow through the pipe will remain constant.

You've got to be kidding, aren't you!!!!

Look this morning when you get up and go to the loo, start the flow then squeese the end of it just a little to reduce you pipe size & watch what happens to your flow rate verses your pressure theory as you still have the same friction value in this equation. Friction is only used in a calculation when flow rates are closest to the maximum flow rate of the pipe. An increase in pipe diameter will negate friction from the equation.

It is clear that you understand a very small portion of the dynamics involved & thus your conclusion.

For further information on this subject I would recommend some light reading at your local library and more science experiments at home.

Over & out.

I won't list my qualifications here but over 25 years in the gas service industry and 6 years further study after becoming qualified gives me some insite into the dynamics of gas flow. Presuure loss will occur in a pipe with any fluid moving along it due to friction at the pipe wall (determined by diameter and length of pipe and the friction co-efficient of that pipe), and the density of the fluid and the square of the flow rate.

We are getting off topic and the caravan example is a poor one due to very small lengths of pipe having minimal effect of pressure loss, but as I've said you can't put more in at one end than you can get out at the other end in this example.

Patrolman Pat posted this followup
We are getting off topic and the caravan example is a poor one due to very small lengths of pipe having minimal effect of pressure loss,

The Topic was for gas stove high or low pressure fitment in a camper trailer was it not?
The discussion was that on a low pressure system that longer hoses than 1.2 metres wern't recommended by the regulator manufactures was it not?
My statement is & was that on lengths up to 6 to 7 metres would present no problem for a low pressure system to be fitted to a camper trailer with the correct diameter pipe used, thus getting back to your statment as above "due to very small lengths of pipe having minimal effect of pressure loss"
Where your headed with your argument with relavance to a gas in a camper trailer fitout I have no idea?
What point is there in bringing other factors into a specific topic discussion where as you've & I clearly stated that it would have no impact on the outcome. This only confuses the information for normal people that use this forum!!!
Cheers.

Was this the bit you were refering to?
"pressure will always be the same only restriction will be to the flow."
If so how it should have read is: "only restriction will be to the flow if too small a line is used."
I'm sorry that I didn't fully explain what I meant. (there doesn't appear to any method of editing posts in this forum)
Cheers.