Posted: 12/01/2015 at 22:07
I used to work with bottled gas, selling that is, then the cylinders were sold in lbs not kilos. For every lbs of gas there is a pint of water, so a butane bottle is 32lbs, so releases 32 pints of water. I wouldnt use it in the greenhouse but my dad did, its ok if you keep the window open all the time.
Propane bottles have to be outside, butane can be in.
I still cook on a propane gas cooker, I would'nt use anything else.