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 George Matthews (gmatthews) - MLife ? wt of empty gigapower canisters on 04/17/2010 18:16:38 MDT Please...110 g Full Wt = 7.0 oz Empty = ? and220 g Full Wt = 12.9 oz Empty = ?Thanks
 John Whynot (jdw01776) - M Locale: Southeast Texas Re: ? wt of empty gigapower canisters on 04/17/2010 18:30:15 MDT Convert the net weight of fuel to ounces and subtract from the full canister weight to get the empty canister weight...
 Gary Dunckel (Zia-Grill-Guy) - MLife Locale: Boulder empty gigapower canisters on 04/17/2010 18:41:00 MDT My empty 110 gm Gigapower canisters weigh 3 oz. For the larger 220 gm canisters, I don't use Giga, but Primus and MSR (this is because I scored cases of each brand on sale).Primus 220 gm. full 13.25 oz, empty 5.55 oz. (net fuel 7.7 oz. on average)MSR 220 gm. full 12.5 oz., empty 4.6 oz. (net fuel 7.9 oz. on average)I too would like to see someone's full/empty weights for Gigapower fuel.
 George Matthews (gmatthews) - MLife Re: empty gigapower canisters on 04/17/2010 19:07:52 MDT Snowpeak LiteMax (GST-120) my wt is 2.0 oz (57 g) on my scaleWas just a bit disappointed when I did not see 1.9 but I got over itTwo little grams : )I boiled 3 cups (24 oz) or .7 L in MSR Titan Kettle (.85L capacity)in about 4 minutes. I weighed the 110 g canister before = 7.0 ozand 6.4 oz after. So used .6 ozTrying to calculate how many times I can do that.I'm assuming, if the empty wt is 3 oz then I have 4 oz divided by .6 or 6 boilsThanks
 Dan Durston (dandydan) - M Locale: Cascadia Fuel Economy on 04/17/2010 19:16:59 MDT That fuel usage sounds high to me. That's about double the fuel usage that my testing has shown. I'm using a MSR Pocket Rocket, MSR caniser and 1.3L Ti Pot with no windscreen. Edited by dandydan on 04/17/2010 19:17:47 MDT.
 George Matthews (gmatthews) - MLife Re: Re: ? wt of empty gigapower canisters on 04/17/2010 19:19:39 MDT Thanks JohnIt is actually converted on label - doh : )220 is 7.76 so fuel is 5.14110 is 3.88 so fuel is 3.12Interesting to match what should be to actual observation. Like the stove weight. That's what got me wondering.I will post some photos.
 George Matthews (gmatthews) - MLife Re: Fuel Economy on 04/17/2010 19:22:48 MDT I opened it up full throttle. No windscreen, was breezy but did not seem to bad.Tomorrow I will try my SUL-1100 Ti pot.What fuel consumption are you getting?
 George Matthews (gmatthews) - MLife Re: Re: Fuel Economy on 04/17/2010 19:35:01 MDT
 George Matthews (gmatthews) - MLife sul-1100 vs titan kettle both 4.5 diameter on 04/17/2010 19:40:15 MDT was thinking diameter was morei will try anyway
 Dan Durston (dandydan) - M Locale: Cascadia Fuel Economy on 04/17/2010 19:40:16 MDT With MSR Pocket Rocket, 1.3L Evernew Ti Pot, no windscreen, + 60 F, mostly calm, outdoors, I observed:2 cups water, Full Throttle = 6.9g (0.24oz) Fuel, 2:102 cups water, 2/3 Throttle = 5.7g (0.20oz) Fuel, 2:404 cups water, Full Throttle = 12.9g (0.45oz) Fuel, 5:00Based on my results, I would expect about 0.34oz of fuel used at full throttle for 3 cups. Your conditions would be more fuel intensive with the higher winds, but you're recording about 80% higher than I'm extrapolating which is a lot higher.I wonder if the small pot diameter is hurting you. A windscreen like the MYOG one currently posted on the front page of BPL would be worth researching. Edited by dandydan on 04/17/2010 19:43:03 MDT.
 John Whynot (jdw01776) - M Locale: Southeast Texas Re: Re: empty gigapower canisters on 04/17/2010 19:42:51 MDT Mine also weighs 2.0 ounces. But the pot supports are better than the Pocket Rocket I used previously. More stable than the Pocket Rocket also.I don't run mine at full power to boil water. I've never really timed the boil times, but it seemed to be about the same as my Pocket Rocket for 2 cups of water in a Brasslite 900 ml mug. Edited by jdw01776 on 04/17/2010 19:46:02 MDT.
 Ben 2 World (ben2world) - MLife Locale: So Cal Re: ? wt of empty gigapower canisters on 04/17/2010 19:47:40 MDT Snow Peak Gigapower 110g fuel canister:Total weight when full - 7oz. - of which:fuel weight --- 3.88 oz.empty can wt. - 3.12 oz.
 George Matthews (gmatthews) - MLife Re: Re: ? wt of empty gigapower canisters on 04/17/2010 20:00:57 MDT Thanks Ben
 George Matthews (gmatthews) - MLife Re: Fuel Economy on 04/17/2010 20:03:32 MDT I will test again tomorrowGood idea - will look closely at windscreen
 Bob Gross (--B.G.--) - F Locale: Silicon Valley Re: Re: Fuel Economy on 04/17/2010 20:49:08 MDT Just like the government has standards for automobile fuel economy for city and for highway, we may need to develop standards for stove fuel economy for Trail or for Garage.--B.G.--
 George Matthews (gmatthews) - MLife Re: Re: Re: Fuel Economy on 04/17/2010 20:55:01 MDT The government can have my stove when they pry it from my cold, dead couscous.
 Roger Caffin (rcaffin) - BPL Staff - MLife Locale: Wollemi & Kosciusko NPs, Europe Re: Re: Re: ? wt of empty gigapower canisters on 04/17/2010 21:38:49 MDT Hi George> 220 is 7.76 so fuel is 5.14> 110 is 3.88 so fuel is 3.12Not quite. 220 g or 7.76 oz is the net weight of fuel in the canister. Ditto 110 g (3.88 oz). The canister is extra.Canisters typically weight between 120 g and 140 g, depending on source, although the Coleman Powermax canisters weigh 68 g and 86 g.Cheers
 George Matthews (gmatthews) - MLife Re: Re: Re: Re: ? wt of empty gigapower canisters on 04/18/2010 06:03:38 MDT From Snow Peak’s GST-120 packaging and instructions:Heat Output 11,200 BTU’sGas Consumption 233 g/hTheir testsBurn Time 50 min (room temperature 20C (68 F)Boil Time 4’ 25 “ average based on 5 testsfor 1 L water with room temp 23C (73.4F)with water temperature 20C (68 F) start and 95C (203F) endSo...Per minute gas consumption233 g / 60 min = 3.88 g/mMy planned test today...1 L water in SUL-1100Water will be 20COutside temp 66F or soIf takes 5 min to boil the LThen 3.88 g x 5 min = 19.4 g (about 20 g)*My 110 canister now weighs 6.4 oz (181 g) beforeShould be 181 g - 20 g* = 161 gWill report results later...Note: 110 -> 3.88 g net fuel + about 3 oz (85 g) = about 7.0 ozI'm sure my tests will result in an empty canister : )Thanks Roger
 George Matthews (gmatthews) - MLife LiteMax used 18g to boil 1L water in 5 min on 04/18/2010 13:29:17 MDT All water temps about 68F/20COutside temp about 66F/19CNo wind5 minutes to boil 1 L waterWt before 182 g Wt after 164 gConsumption 18 gTherefore I will plan on average of about 5-6 boils of 1L for a 110 g canisterOr double for 220 g canister, 10-12 boilsWind makes a difference, of course. Will try windscreen in future for wind.Just for comparison, tested my Primus EtaPower Trail.Boiled 1L water in 3 min and consumed 11 g of Power Gas (Winter Mix)The integrated system is more efficient, but weighs more, of course. During the last two winters I used it during cold times, but not a lot. I used the 450 g canisters so had not taken the time to measure consumption during three-season conditions because I wasn’t going to pack it then.
 Roger Caffin (rcaffin) - BPL Staff - MLife Locale: Wollemi & Kosciusko NPs, Europe Re: LiteMax used 18g to boil 1L water in 5 min on 04/18/2010 14:39:43 MDT Hi George18 g per litre is high. That amount is to be expected if you run the stove flat out like the manufacturers specify, but you will get a lot better fuel consumption if you run the stove at medium power. 'Flat out' means a lot of waste heat lost up the side of the pot - a well-known problem.We take ~9 g for 0.75 L for morning tea.Cheers
 Ben 2 World (ben2world) - MLife Locale: So Cal Re: Re: LiteMax used 18g to boil 1L water in 5 min on 04/18/2010 14:57:43 MDT +1.Especially for narrower pots, there is no good reason to fire up the stove to full blast.
 George Matthews (gmatthews) - MLife Re: Re: Re: LiteMax used 18g to boil 1L water in 5 min on 04/18/2010 16:18:33 MDT Roger and Ben,Thanks for you advice. Just tested 3 cups (.75 L) at 1/2 turn (full is a little more than 1 turn).Took about 6 1/2 minutes and consumed 10 g.I can live much better with that : )