After doing it once you feel very confident with it.

Exactly!

Thanks

You mean a butane to propane of 3:1 ratio (B:P).

Thanks

Thanks Steve

Cool, thanks

I also have a table top gas stove that takes the big cans.

Thank you

Thanks for watching

Nice one!

Thanks 👍

Thanks

The heavy blue camping gas are ok with propane, but do not refill the small canister with propane , Propane has a higher much higher pressure than butane. most of the canisters from the store have a 70% Butane and only 30% propane.

@@drkmaes Thanks for your reply. I do realise this. Butane regulators are set lower at approx 28-30 mbar where as propane regulators at around 37 mbar. I do not plan to refill any smaller cans with propane just run the cooker off the 13kg bottle with appropriate regulator. I do have some empty butane bottles as well which I might get exchanged for full ones which I could also use.

@@alexmorgan3435 The pressures you mention are the working pressure however most gas burners for camping ,use the pressure from the canister, no regulator in between. The pressure in the canister is dependent on the temperature of tank propane has a pressure of 129 psi @ a temperature of 27 C Butane 23 psi @ 27 C propane has a pressure of 197 psi @ a temperature of 43 C Butane 47 psi @ 43 C The small canisters have been engineered to withstand the pressures of the Gas mix of 70% butane and 30% propane, but the higher pressures from propane would give a problem. Your blue camping gas tank should have no problem with the propane. You can refill the camping gas tanks yourself, all the adapters for that are on the market.

Thanks, i still hammock! The weather is so awful this year. You will see it again.

Thanks

www.gooutdoors.co.uk/19500062/eurohike-4-pack-all-season-gas-227g-19500062

No worries

Glad it was helpful!

I have a Fire Maple " Copy of the JetBoil" so i have to get the cans that nest into it. I refill until they start getting a bit rusty.

That's weird. I have been to 3 different shops and they are £4.49 for a pack of 4

Yes you wont get it all out

If you put the can to be filled in the freezer for 30 min and the donor can in warm water, you can get most out. Might need to repeat this a couple of times if you want to squeeze out as much as possible. I just refilled mine from a 227g net weight bottle, and there was ~17g left at the end. (Emptied the bottle fully to check). So that's only ~8% wasted. If you don't want to muck about getting every last drop out, then you'll easily get 75% or more out of the bottle. Don't forget it's also in liquid form inside the can due to the pressure, so it's not just a question of balancing gas pressure -- you're literally pouring some of the liquid across too, provided you keep the donor on top. The main thing to do is always use similar gas mixes. If you refilled a butane bottle with a pure propane, for example, you'd be putting the bottle under massively more pressure for the same weight of contents, and risk exceeding the design pressure of the bottle you're filling. That can lead to catastrophic results. (boom!)

Don't forget that most of the contents are actually in liquid form due to the pressure, not gas. You're transferring liquid when the donor can is on top, so it's not just a question of a 50% transfer of gas. If you're careful with your fill percentages and temperature differentials you can get 90%+ out of your donor cans. You're right about the pressure gauges -- as this method is going only by mass, It's important to only refill with similar mixes, so you don't exceed the design pressure of the container you're filling. e.g. NEVER fill a butane or butane-mix bottle with pure propane -- it's MUCH higher pressure for the same mass and temperature.

if you can make the gas that you want to transfer colder than the receiving tank it would make it easier. If that isn't possible,. You would get more from a full can to an empty can at the same temperature than two half full cans. Don't expect to empty a full can on transfer. You can get an adapter for the can you want to transfer from, if you are going to have it with you out in the field then you don't need to transfer.

❤​@@PaulBissekerBushcraft

​@@PaulBissekerBushcraft❤

Humidity has nothing to do with it! It's well for the receiving tank to be cold, so that the Butane tends to condense and lowers the pressure in the receiver, just makes everything easier. That silver adapter with the valve sometimes also has a little button on it that VENTS the lower tank head space, and allows more liquid to flow. It's well to do this job outside. Also (I just did this today) you can help things along by putting some heat (I used hot water from the kettle) in the base of the upper bottle, it makes a little cup. That makes an increase in the pressure in the upper tank and moves some more liquid. You can hear it moving!

until it starts rusting. Give it a good visual examination each time you use it.

mostly 70% butane and 30 % propane