Some of y'all probably already know I am not impressed by the JetBoil. Figure it is over built fancy novelty toy that impresses people by doing what stoves already do but saves about a gram of fuel per burn and about 30 seconds time by adding a great deal of breakable, overweight crap to a stove system.
This week I got a Coleman Exponent F1 Ultralight stove based on the review from BPL which showed it performed almost as well stock as the JetBoil does with all that fancy-smancy extra stuff.
I did an initial test of weight and came up with 2.7 ounces just like advertised. I then hooked it up to a 70/30 canister for testing. Full blast it boiled a pint of water in 1 minute flat with only ~8 grams of fuel in windless conditions. Water was 78F starting and air temp was 77F in my garage. Pot was my Evernew 0.9L pot. Not bad.
Then I made a windscreen similar to the Snow Peak windscreen:
The weight came in at 1.2 ounces and it works well with my Evernew pot as well as the Anti-Gravity Gear 1 qt pot.
So I put the new windscreen on the pot, this time my total stove weight is 3.9 ounces. Using the same 70/30 canister I kept the throttle down because I didn't want to take a chance on overheating the stove on the first run and risk a fire. At about 1/2 throttle I achived boil in 2:30 while using only ~5 grams of fuel. Water and air conditions are the same as above. So now I just need to do some testing in foul weather to see how it works.
Numbers so far:
Windscreen 1.2 ounces
Evernew pot 4.0 ounces
Scripto Lighter 0.6 ounces
Pot Cozy 0.9 ounces
Fuel cannister ~ 8.0 ounces
Total: 17.4 ounces
Compare to the Jetboil with fuel:
Stove 6.0 ounces
Lower burner cup protector 0.9 ounces
Cup and cozy 7.4 ounces
Lid 1.1 ounces
Fuel Canister 6.8 ounces
Total: 22.2 ounces.
(data from http://www.backpackgeartest.org/rev...itial%20Report/)
So a lighter set up and similar fuel usage.