Non scientific test, to be sure. Wicks trimmed, both charged to the gunnels with kerosene, as close to 1/4" below the fill cap opening as I could get. Lit at 4:04 PM today, the day of this posting. I watched them over the next half hour or so and adjusted them for as similar a flame as possible. I'll now leave both alone, no more wick adjustment. They'll also be staying outside today deal with whatever weather comes.
Here we are 6pm ish Wednesday, three days later. Dipping the tanks on these show they're down to 1/3rd or 1/4 tank left, with the Japanese lantern out front. The Dietz has managed to crbon up it's wick a bit, while the Japanese lantern is still going fairly strong and steady. These are both 2.5 liter lanterns, meant for going the long haul. The Dietz is purported to be meant for green house heating, although I have never seen anything official connected with this claim. The Japanese lantern I have no info on. If anyone has any info I'd be most grateful if they'd share it.
G'day Marc, I guess thats where wickies come into their own. 'Set and forget' lighting (or heat). With 2.5 litres of fuel they certainly have the capacity for it.
Howdy Rob. Yeah set and forget runtime is where these lanterns shine, for sure. On a low(though usable) flame, the Japanese lantern went for a week and a day when I first purchased it. In this test, the Dietz exhausted it's fuel between 4 and 6pm today after four straight days. The Japanese lantern continues, down to ~1/4" of fuel left. It wish I knew more about it and if the manufacturer is still around. It's a quality piece of equipment.
Woke up Sunday morning to the Japanese lantern out. Just a few hours short of a week straight unattended burn, and eclipsing the Jupiter by two days. Wickie crap though it be, I do love it.
