Hi Geoff, Ill tell yu a story bout coleman lanterns.
When my nephew was about 11, ( Hes 21 now) he hounded me for weeks to take him for an all night session on blyth pier, eventuall y bave in to the ;ittle pleader, and made plans for a friday night session. I had no transport at the time, so my partner agreed to drop us off at 9 on the friday night, and pick us up at 9 am saturday. I took the gear, and a big sheet of black visqueen for a wind break.AND my coleman lantern. To cut a long story short, about 1 am, it got cold. bloody cold. I wasnt too bad, but my nephew began to shiver, I gave him my coat to warm him up a bit, but it wasnt enough. It got to the stage where he was so cold he could hardly talk, and he just wanted to sleep. Frightening signs of hypothermia. not having a mobile at the time, I was up the creek, no one else around.
I made a little tent out of the visqueen , around paul, as close as i could, and left enough room for ventilation, lit the coleman, and put it in with him as a heater, watched him all the time, and he gradually got warm with the heat off the lamp.
i must admit, i was more than a little scared for him.
Ive still got the lamp, but i dont use it. BUT, i dont go for all night sessions on blyth pier any more either.