How to CORRECTLY Refill Iso Pro Fuel Canisters 

bro they’re meant to be refueled in the field i think it’s gonna be okay temp isn’t gonna be that huge, but yeah he probably should do it outside

@@01Parzival Refilled in the field, doesnt make any sense.

This is new age for you. He might have even cried a little while writing that….

I'm so glad you took the time to write all that so I don't have to. But I have a feeling it's fallen on deaf ears for the most part. These are the people who think this device is for use "in the field" and have zero understanding of Dalton's law and how it can be used to benefit what they're trying to do. I was just dumbfounded while he was venting the gas off and calling it "air". It made no sense whatsoever. "You'll feel the smaller container is colder to the touch now"... Its working but he has no idea WHY it's working. By venting the one vessel he's artificially super-cooling it... similar effect to putting it in the freezer for 10 minutes. Except he's wasting gobs of gas to accomplish it; then once the can is cold it'll draw in more of the dense fluid during fill. Technically...if I'm thinking about this right... he'd *have* to vent it to the atmosphere (or...room, in his case...smh) to get it to super-cool. If you drained it into an empty cylinder, the cooling would stop as soon as the pressures equalized. In the room the pressure is a rough constant he's not going to be changing. It'll just keep taking more vent gas, allowing the expelling canister to cool. But it's so incredibly wasteful, for the life of me I can't imagine doing that since the very device he made the video about would allow that to NOT happen when used correctly.

@@01Parzival bro, Who told you that they're "meant to be refueled "in the field"? Cuz they lied to you. It's the temp differential that you want to create to transfer the more dense fluid. But lets step back to the "in the field" bit. I'm assuming you made that up yourself out of thin air, because you don't have a clue what any of this stuff is actually *for* but that's not stopping you from commenting and acting authoritative. (unfortunately) You get home from a hike with a small canister that got used up. You put it in the freezer and let the full/more-full one warm slightly.... then you let Dalton's law assist you in transferring as much of the fluid as possible, to the target weight. So you can keep re-using your smaller canisters without having to buy new ones every time you use one up or use it down low. The larger canisters are usually cheaper per oz of gas than the smaller ones. But in your version.... you take both the big full one and the smaller one, use the smaller one (or two the same size???), then use this device to refill it in the most wasteful manner possible... why? If you've already got the bigger one, just screw the damn stove onto it and use it Cletus!! Duh! It's a more stable base for the stove anyway. You saw the picture on Amazon and figured the person who made the advertisement picture must be the person who had it figured out, huh? That dude using this device while the girl in the tent watches as her man gallantly ....does nothing useful whatsoever when he could be handing her the good cylinder to do some cooking with. You're the epitome of that guy. You're in the picture but you have no idea why you're doing what you're doing; because you're not actually doing it, you're just acting like you are. And it shows. Much easier to think it through first, but you do you. Bro.

Thank you

Thanks for watching! Blessings to you!

use dry ice to cool the canister better than just ice

@@kayoray If you have, then sure! Had to look it up, and… Not quite enough to freeze the gas solid but reaching down to -78 Celsius it should be enough to turn even propane into liquid at atmospheric pressure. Not bad at all. .

Way back when I played paintball, they would put a small amount of CO2 in the tank and release it to cool the bottle so the remaining CO2 would better go in. So yeah, what you say makes sense to me.

I was thinking the same thing where the air would come from.

Hi, thanks for explaining. Do you need to put the receiving canister into a freezer or putting it into a fridge is sufficient?

@@user-qn8fi4nc9i into the freezer to make it really cold and to maximize the temperature differential. When filling, some people also place the sending canister in warm water to help with the transfer but I’ve not needed to do that.

@@wanderworm got it, thanks!

It's effective!

I’m thinking petroleum oils may degrade seals. That could lead to dangerous leaks (eg in your car on the way to the trail). Hard to say if we don’t know what the seals are made of. You want something that’s compatible. I’m thinking mineral oil may be preferred, but not sure.

DO NOT REFILL BOUTANE CANISTER WITH PROPANE BOUTANE CANISTER IS NOT VERU STRONG

The canister is lightweight and having little mass. Putting in the freezer dont do much, but if you fill e.g. half first, then put it in the freezer - or in some other way holding the receiving canister cold during filling.

DO NOT REFILL BOUTANE CANISTER WITH PROPANE BOUTANE CANISTER IS NOT VERY STRONG

DO NOT REFILL BOUTANE CANISTER WITH PROPANE BOUTANE CANISTER IS NOT VERU STRONG

Yes, the full canister needs to be on the top

The green can isn't filling because the air needs to be taken out to get liquid fuel in

This is an excellent question and thank you for the kind words and support that you get my channel. When I'm out on a hike or something I don't take the scale and weigh anything . I just use a little bit of common sense and I don't overfill the chemisters. When you push the relief button and if you see liquid come out don't put any more in. It's that canister first.

Yoy do the job on home before you go!!!

That sounds like me! Hope you're doing good bro! :-)

It's not a good idea to fill a butane canister with propane. The vapor pressure of propane is about 4x the vapor pressure of butane. That's why propane canisters are so much thicker and heavier.

DO NOT REFILL BOUTANE CANISTER WITH PROPANE BOUTANE CANISTER IS NOT VERU STRONG

Yes, the larger ones are cheaper per ounce generally. It’s nice to be able to refill a small one. Sometimes you’re only going to be out for a couple of days and this allows you to carry a small one in your pack, keeping your way down.

Most probably synthetic nitrile

Can you refill with butane a isopro canister?

No

Why even bother, just use an adapter

The thing is the flat butane cans have a pickup tube, tilt the can 45deg with the tab facing down, keeps warming the donor can with warm water

@@daijoubu4529 thx. but if there is a pickup tube inside, how would you know where it is so that you could tilt the can with it on the low side??

@@jjaylad The notch is the top side 2.bp.blogspot.com/-tjEVnRXg9Ew/TxT7E7_r0yI/AAAAAAAACic/UdTbr9zpWs8/s512/ButaneCanisterValve.jpg

NO! Propane is at higher pressure, isobutane canister can take 20% or so propane

DO NOT REFILL BOUTANE CANISTER WITH PROPANE BOUTANE CANISTER IS NOT VERU STRONG

Equalize ptessure, yes,but with the same pressure i can have 1) 300ml boutane or 2) 350ml boutane. The pressure is the same, but it is nesesary to be space , so the boutane can expant , so i fill with 300ml, not 350. The pressure is the same because while i add boutane, the same time the vapors (of the space off top), transformed in liquid, (whith less volume), and the pressure remain the same (iff the temberature is the same). (i don't speak Enhlish ) So when we speak about we don't speak about pressure (is the same), but we speak about volume, or mas of boutane) Thear is a litlle problem hear, because most people understant the , only abaout pressure, and not abaout mas of the material

Yes, but 1)the biger canister is not expencive 2) if i have 2 canister 50%, and i want to take with me only one, i have to refill one

the liquefied gas expands as its temperature rises, a gaseous space within the container must be maintained, allowing the liquid to expand within the container

@@philiptong4978 so what?

if liquid expands and there is no space inside the container, it ruptures and release the highly flammable gas to the atmosphere, at a certain concentration the environment becomes explosive

@@philiptong4978 what are you talking about? It can't overpressure by connecting to another canister. It can only reach the same pressure as the other container, when they equalize. That's the point.

some liquid also expands when solidify by cooling, water is an example fill completely a plastic soda bottle with water, close cap tightly and freeze it, check what happens to the bottle after water becomes ice

hint: lookup vapour pressure of propane, butane, mixture of propane and iso-butane under different temperature do realize every canister brand employ slightly different mix and impurity level lookup EN417 standards that the canister comply with (use as a guideline only) hopefully you will understand

DO NOT REFILL BOUTANE CANISTER WITH PROPANE BOUTANE CANISTER IS NOT VERU STRONG