Hi, you certainly know all these 3 or 4 block blocks with shut-off cocks, whose hidden assembly is often criticized by camping “specialist” magazines. And, hand on heart!, who of us closes off the neatly? I don’t! And that for good reason! I didn’t know so far, but I did all right (hopefully you too). I found the following article entitled to quote in another forum. Quotation: In your controllers there is a so-called safety valve, which for the purpose This is necessary because a gas bottle basically works like a steam cooker! Inside there is a liquid, our gas, which, however, does not boil at 100 degrees PLUS, but at 42 degrees MINUS! The further the temperature goes out over this boiling point, the higher the vapour pressure! One can say – per 10 degrees temperature increase the pressure increases by a good 2 bar! Therefore me This is normal and has nothing to do with the filling level! In summer a propane bottle can reach about 12 bar, a butane bottle (e.g. GAZ blue) about 3-4bar. Since we can’t do anything with this high pressure, we have to lower it by a pressure reducing valve to our system pressure of 30 or 50mbar! So- now you have cooked your coffee in the morning and it is summer and also the refrigerator runs on electricity – so – K A GAS CONSUMPTION! This morning there were 50 mbar in the line and now it is 20 degrees warmer and the car is standing in the sun… There would be now the 50mbar of this morning, PLUS 4-5bar extension on it!!! Almost compressed air strength!!! Since your gas system is designed only for low pressure, the sensitive valves would damage your devices. Sure? Inside gas – Outside air – it must be allowed to rotate! So logically contain a seal of GUMMI or silicone! This is exactly what happens through the safety valve IN your gas pressure reducers! Mostly a small orange plastic nipple! I believe everyone knows! If everyone who has now thought about it would have to find out now that in the gas box under normal conditions gas MUST BE!!!! There is no error here!!! If it gets only a single degree warmer, these valves have already opened several times and at 100mbar the pressure is released for safety reasons. food! So there is not in the event of an incident, but IN NORMALFALL gas in it!!! If there were none, what would be broken! Therefore, ALL ZÜNDSOURCES are forbidden, no matter whether weak current or 220 volt. A gas-air mixture becomes ignitable from about 2% gas in the air part! That’s freaky little people!!! More than 10% is the mixture already too fat and does not ignite anymore! In the gas box therefore only lamps and switches, which carry the EX sign for explosion protected can be used! Everything else is here absolutely out of place and dangerous! A spark is enough and your beloved caravan is minimally a convertible… I hope everyone has noticed now! In the gas box must stand gas in warm weather, or it is something broken! So it is completely normal if someone opens his gas box and smells gas at noon! Everything OK! Nothing broken!!! Incidentally, who closes his shut-off valves IN the caravan and believes he does something good, errs tremendously! If these valves are to be the prescribed Printtla These valves should not be closed in normal operation! Those who are afraid of gas – bottle too! Where nothing can get out, it is the end anyway! These valves serve only one purpose! If you are on the way, I have only one stove, a fridge and a heater. Let’s take the fridge is defective. Gas outlet! If you had no shut-off valves, you could not have the valves. You don’t cook and don’t heat! So you have the possibility to put the defective device out of operation and continue to operate the REST! As this has to be done for each device, in case more than one consumer is connected in the car, for each ONE shut-off valve is prescribed! So simple is that! Whoever closes these valves, puts an important safety device of his car, which he paid for before, out of function! So NO SECURITY WINE, SONDER D AS ACCOUNT !!! So now I have written a lot and hopefully some of it prevented any nonsense with your gas plants to do! Laziness also has its good sides! Lazily and satisfied greets Franjo001