i aint NO FOOL
and the end of the day you have to power it , propane or electric all leave it liable to fire when it is unatended
I have already posted what I am going to use, it will be brand new and not off ebay, it will be fixed to the side wall of the van, nothing above or below to catch fire, the butane bottle will also be secured, especially in travel, the system will not be fired up while driving.
All the hoses and connector are brand new and do not leak gas.
When all of this is taken into account, my van will not be any different than a greenhouse, which these heaters are made for.
How many greenhouses have you heard about exploding in the middle of the night.?