tag:blogger.com,1999:blog-4359823178932343980.post2648329037056571446..comments2024-03-21T19:29:24.316-07:00Comments on Adventures In Stoving: The G-Works R1 Gas Saver – Refilling Backpacking Canisters IIHikin' Jimhttp://www.blogger.com/profile/01554269915148144573noreply@blogger.comBlogger29125tag:blogger.com,1999:blog-4359823178932343980.post-51219067690104031092021-08-30T01:34:01.162-07:002021-08-30T01:34:01.162-07:00I refill noth major styles of canister with lpg wi...I refill noth major styles of canister with lpg without a problem.<br /><br />You go on about pressure.one does not need to refill to max pressure.<br /><br />Refilling should always be liquid,not vapourJadekayakhttps://www.blogger.com/profile/07043095925687014160noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-77046771086019665192021-07-16T09:24:24.044-07:002021-07-16T09:24:24.044-07:00how did that explode when the gas was off to the s...how did that explode when the gas was off to the side?mehttps://www.blogger.com/profile/04805537970935276739noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-56979654661548152062019-11-08T07:31:01.392-08:002019-11-08T07:31:01.392-08:00Just checked back here now, months later!
Your ex...Just checked back here now, months later!<br /><br />Your explanation makes a lot of sense, thank you.AJhttps://www.blogger.com/profile/05535529326163102658noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-15795042949525814622019-08-11T18:50:08.050-07:002019-08-11T18:50:08.050-07:00As you are transferring liquid out of the donor ca...As you are transferring liquid out of the donor can into the receiving can - not the vapor - the mix should stay the same in both.Brekelhttps://www.blogger.com/profile/13093132055994409421noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-7965757160518713972019-06-11T20:11:53.674-07:002019-06-11T20:11:53.674-07:00http://g-works.co.kr/shop/shopdetail.html?branduid...http://g-works.co.kr/shop/shopdetail.html?branduid=1083353<br /><br />Has anyone tried their new R2 model?Victor Leehttps://www.blogger.com/profile/01085416211085754357noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-57566430859024969822019-03-07T04:49:17.415-08:002019-03-07T04:49:17.415-08:00I'd love it if anyone feels they can tackle th...I'd love it if anyone feels they can tackle the above question. Until it's answered I don't feel safe refilling with anything other than 100% butane.<br /><br />I'll re-phrase the question to hopefully make my concerns more clear:<br /><br />It seems generally accepted that, when a commercial mix of butane and propane is used, especially at low temperatures, that the propane is used up more rapidly than the butane. Often one is left with a canister containing mainly butane which no longer works well in low temperatures. Is this right so far?<br /><br />If so, it seems to me that we should expect, when transferring a butane/propane mix from a canister, that more propane than butane will be leaving it. So the receiving canister will end up with a higher ratio of propane.<br />AJhttps://www.blogger.com/profile/05535529326163102658noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-67394091170382354142019-02-19T02:33:36.770-08:002019-02-19T02:33:36.770-08:00Based on these observations mentioned:
* It is imp...Based on these observations mentioned:<br />* It is important to never have too much propane in the mix, as the pressure could become too great for the canister<br />* When burning off a butane/propane mix, propane is used up more quickly, i.e. it leaves the canister at a faster rate than the butane<br /><br />Doesn't that mean, even transferring from one canister to another of identical brand/mix, that it is very easy to end up with too much propane in the canister you are transferring to? I.e. more propane than butane could be leaving the donor canister?<br /><br />Does this suggest sensible temperatures must be used for the donor and receiver canister? E.g. if the donor had been in a cold room, and the receiver had been put in the freezer, wouldn't the receiver be getting a lot of propane and not much butane?<br />AJhttps://www.blogger.com/profile/05535529326163102658noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-75623772946777881962018-02-13T17:15:53.510-08:002018-02-13T17:15:53.510-08:00Thanks for the detailed article! Just had a questi...Thanks for the detailed article! Just had a question regarding refilling canisters. I would like to refill some of partially full isopro cans (80/20) and was wondering if the ratio stay the same? Or would the refilled can have a higher percentage of propane? If I can keep the same ratio, this could make winter trips a whole lot easier for me!KevinDhttps://www.blogger.com/profile/09052898708604839135noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-957618272942170752017-12-02T21:22:27.611-08:002017-12-02T21:22:27.611-08:00O.K. so I've digged in this one here's the...O.K. so I've digged in this one here's the link: https://translate.google.ru/translate?hl=ru&sl=auto&tl=en&u=https%3A%2F%2Fwww.utsidan.se%2Fforum%2Fshowthread.php%3Fp%3D505210<br /><br />I'll quote (translated):<br />"The expensive original gas works barely at this height and cools so the user feels forced to try the refilled gas containers to get warm food.<br /><br />To get a little bit better in the kitchen (Primus OmniFuel with Eta-pot), the user puts the gas tank on the lid to gently warm it up (quite alright). However, after just a few seconds, the gas container explodes and literally pushes the lid and the pan completely over the kitchen."<br /><br />I can assure you that if you get a Kovea, MSR or Primus gas tank and put it on lid, you'll eventually end up with a similar bang. Yes, filling it with a high propane (it's not 100% propane anyway) mix will make this faster but nonetheless.Antinomyhttps://www.blogger.com/profile/03817632964156450824noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-70487843291173678192017-12-02T20:41:02.354-08:002017-12-02T20:41:02.354-08:00I could double the freezer tip, Jim. Been refillin...I could double the freezer tip, Jim. Been refilling canisters for over 2 years now. No water baths, just a freezer and a scale. I consider 2-3g overfill be within tolerance but 7-10g should be burn out. Also, do you have any statistics on canister weight from different manufacturers? Seems like Jetboil 100g own weight is around 110g whereas Snow peak is 98g. Kovea 220g canisters have around 131-135g and the big 450g ones are 213-215 empty making them around 666g full (easy to remember, lol).<br /><br />Well, I do agree on your "don't fill with propane" warning in general. The EN417 gives us a pressure limit of 13.2 bar, everyone smart enough can do their own math and conclusions, I won't encourage anyone here.<br /><br />But take a look at the picture you've provided. Pretend you had a canister full of propane connected to a remote canister stove with a pot on it and a windscreen around the pot and stove (or maybe without a windscreen). Take a pick - what would the damage look like? And why does it look like an elephant stood on it?<br /><br />My guess it's not propane being the main reason here. More likely someone thought it would be smart to put a canister on top of a pot or even in the water in it. You can pretty much do the math to sum it up. Explosion and the pressure pushed the pot to the ground smashing it together with the stove. If the canister was not on top but nearby, the damage would be from a side and parts would be around, not squeezed from above. Just my $0.02.Antinomyhttps://www.blogger.com/profile/03817632964156450824noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-42965071075186146812017-11-01T18:14:47.377-07:002017-11-01T18:14:47.377-07:00Also you can add propane first, no problem. But th...Also you can add propane first, no problem. But the Kovea adapter is 1-way, you need a cheapo adapter.Marcushttps://www.blogger.com/profile/06665596605027046594noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-79349345657292864152017-11-01T18:12:32.949-07:002017-11-01T18:12:32.949-07:00The green can is too heavy for backpacking. I now ...The green can is too heavy for backpacking. I now have two green canisters on hand with 70/30 mix to fill my small canisters. I also refill the all-propane green cans themselves from a BBQ tank for $1.Marcushttps://www.blogger.com/profile/06665596605027046594noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-19415760295418595182017-11-01T17:55:05.900-07:002017-11-01T17:55:05.900-07:00why not use straight propane in stead of a mix in ...why not use straight propane in stead of a mix in the green canlinerguyhttps://www.blogger.com/profile/08607410463681797983noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-7766552549138370432017-09-13T13:55:25.560-07:002017-09-13T13:55:25.560-07:00I should add that I spent enough on fittings to pu...I should add that I spent enough on fittings to purchase a bunch of regular canisters so this may not be for most people. However, I like being able to fill at home and I punch holes in the empty butane cans and put them in the recycling. I can fill a 450 (actually 480) g coleman green cylinder for about 2 bucks. Marcushttps://www.blogger.com/profile/06665596605027046594noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-63424241196593424912017-09-13T13:47:34.456-07:002017-09-13T13:47:34.456-07:00Well, an update. CAUTION, DO NOT DO THIS. I succe...Well, an update. CAUTION, DO NOT DO THIS. I successfully mixed 30/70 propane/n-butane in an empty coleman 1-lb cylinder. Lots of careful measurements. Also, my first attempt failed as I believe the kovea propane adapter is somehow "1-way" and wouldn't allow gas to enter the propane cylinder. I needed a second anyway to add propane, and one of the cheap lpg adapters on amazon fitted to the donor "winter mix" coleman cylinder did the trick. I used a lindal fitting hose combined with the g-works gas saver which allows you to weigh the gas added in real time - a real time saver to not have to disconnect as often to weigh. In this case, I added butane first because I wasn't sure if the higher vapor pressure of propane in the tank would prevent adding butane. Will try it next time. Now I have 450g of 30/70 in a sturdy propane tank to top off my backpacking canisters.Marcushttps://www.blogger.com/profile/06665596605027046594noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-6943722321073535852017-08-27T06:08:35.405-07:002017-08-27T06:08:35.405-07:00Jim, a way to (more) safely create a winter mix ju...Jim, a way to (more) safely create a winter mix just dawned on me... Mix and store the gases in a 1lb propane bottle; get 30 percent propane in the bottle then add the remainder in butane. seems it would solve many of the safety concerns with creating a winter mix. Of course one would want to mark the mix bottle accordingly. Fill your backpacking canisters from the winter mix former propane bottle. Even better would be a 5lb propane bottle of mix which could last a long time (but would be a pain to initially fill with Asian butane) Thoughts?Marcushttps://www.blogger.com/profile/06665596605027046594noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-23481181507138841902017-07-25T13:12:58.038-07:002017-07-25T13:12:58.038-07:00Just wanted to say great info, I have been refilli...Just wanted to say great info, I have been refilling my canisters with cheap butane from Korean grocery store. <br />They come in the 227g cans and when on sale can be 1-1.5 for 227gas. <br /><br />I have yet to complete a boil time review of this butane vs name brand msr etc gas. <br />https://www.amazon.com/GasOne-Butane-Fuel-Canister-Pack/dp/B0022BUT2O<br />Anonymoushttps://www.blogger.com/profile/11174790458643233944noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-3533769908735545502017-07-25T13:06:30.476-07:002017-07-25T13:06:30.476-07:00Just google working pressures propane vaporizes at...Just google working pressures propane vaporizes at a much higher psi then butane. <br />So what all the other posts are in regards to canister working pressure rating. <br />Just compair a green propane canister (heavy steel) vs a butane canister (light thin metal) <br />And you don't need to be a rocket scientist to understand the difference. I'm sure you might squeeze propane into a butane canister. But it's a ticking time bomb depending on the canisters temperature. <br />Anonymoushttps://www.blogger.com/profile/11174790458643233944noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-38209743851599957502017-06-26T22:39:50.867-07:002017-06-26T22:39:50.867-07:00Hi David,
Here in Philippines, butane canisters a...Hi David,<br /><br />Here in Philippines, butane canisters are being refilled with LPG using this device https://goo.gl/photos/8QFXjBW9SfUphmh46 connected to LPG tank. I had seen it first hand. This is for economic reasons, because LPG-refilled canisters are cheaper compare to buying a new butane canister. What are your thoughts? Is this dangerous? I've also seen the canister being pressed with ice while the canister is being refilled.. What is that for?<br />Anonymoushttps://www.blogger.com/profile/15242182745088557836noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-21200266060225939812017-06-12T21:32:40.407-07:002017-06-12T21:32:40.407-07:00Ah, now that's interesting and potentially saf...Ah, now that's interesting and potentially safer. Question if I may: How cold is your freezer? I'm guessing that so long as there is a pretty good delta T that it doesn't have to be sub-zero or something. Sub-zero might actually affect the operation of the Lindal valve potentially <i>increasing</i> the risk.<br /><br />Good tip on the liquid vs. vapor at the time of disconnect. I hadn't really thought about it consciously, but that is in fact what I've been doing. I'm not sure if that's luck or intuition, but either way, I'll be doing it deliberately from now on.<br /><br />I very much appreciate your taking the time to write comments,<br /><br />HJHikin' Jimhttps://www.blogger.com/profile/01554269915148144573noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-43366543646241170712017-06-12T21:26:43.177-07:002017-06-12T21:26:43.177-07:00Hi, John,
How's the Snow Water Equivalent do...Hi, John, <br /><br />How's the Snow Water Equivalent doing? :)<br /><br />In answer to your question, yes, that is precisely what one could do with this adapter. If you've got, say, three canisters laying about 1/3 full, you could combine them to get one full canister. <br /><br />Or, and I think this is easier, you could just buy one big 440 g (sometimes 450 depending on the brand) canister and top them all off and have three full canisters. I personally like to fill a bunch of canisters at once. There's a little bit of a set up with the ice water bath and all that, so while I've got everything set up, I just fill four of the 110 g sized canisters, for example, from one 450 g canister.<br /><br />Now, and I hope I don't sound patronizing here, but please do read the cautions carefully. If you blow your self up trying this, Laura M. (among others) will hunt me down and personally wring my neck. I'm rather fond of my neck as it is, so do be careful. <br /><br />HJHikin' Jimhttps://www.blogger.com/profile/01554269915148144573noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-76505778009965043092017-06-12T20:30:53.563-07:002017-06-12T20:30:53.563-07:00forgive me if I missed this in the text, but can o...forgive me if I missed this in the text, but can one use this method to fill canisters from other partially used canisters of similar size?john dittlihttps://www.blogger.com/profile/17449205452075519354noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-24165558395914668082017-06-12T19:33:24.654-07:002017-06-12T19:33:24.654-07:00I do my warming/cooling a bit differently.
I le...I do my warming/cooling a bit differently. <br /><br />I leave the donor at room temperature (no warm / hot water) and I put my receiving canister in the house freezer if it has some fuel left in it. I put it in the colder chest freezer if it is totally empty. <br /><br />I then transfer from room temperature canister to cold canister. I a similar delta T, so a similar delta Pressure but all at lower pressures, no water wetness, and no chance of overheating anything. Typically the transfer takes 20-30 seconds.<br /><br />If I don't get all the transfer I want, I toss the receiving canister back in the freeze and repeat >20 minutes later.<br /><br />Second point: Never make or break a connection between a canister ABOVE a GasSaver valve BELOW. Just as you make/break the connection, they'll be a little squirt of LIQUID butane which is cold (more startling) and represents more mass of butane.<br /><br />ALWAYS have the GasSaver ABOVE the canister when you make or break a connection (this is also true of connecting/disconnecting a stove to a canister). Then, if you get that little squirt escaping, it will be all vapor, less cold, and less mass lost.<br />David Thomashttps://www.blogger.com/profile/01168579746323979238noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-27805380042249050372017-05-24T23:08:49.523-07:002017-05-24T23:08:49.523-07:00Bill,
I have only used the adapter featured in th...Bill,<br /><br />I have only used the adapter featured in this review, however, my understanding is that the "plus" version is roughly the same as the adapter in this review except that the plus version includes some type of pressure relief valve to prevent excess pressure.<br /><br />HJHikin' Jimhttps://www.blogger.com/profile/01554269915148144573noreply@blogger.comtag:blogger.com,1999:blog-4359823178932343980.post-41388779677565127972017-05-24T08:19:41.133-07:002017-05-24T08:19:41.133-07:00When I go on Ebay I am seeing different versions o...When I go on Ebay I am seeing different versions of the G works gas saver.<br />Now there is the gas saver plus. Could you comment on the differences.<br /><br />Thanks, BillAnonymoushttps://www.blogger.com/profile/06544017952499111978noreply@blogger.com