Metal barrel+Charcoal production

[MrTrololo]

metal barrel would function like regular craftable rain collecting barrel ,but also would be used to produce charcoal(i know that charcoal isn't better in anything from regular wooden logs,planks etc. as fuel ,but it would be more useful when blacksmithing will be implemented into game) ,would be also useful to use it as brazier(less light generation and no risk to fire spread what would mean safer source of heat) ,would appear mainly near gas stations and inside warehouses,would be obviously dismantleable,but probably it would be also to precious to do that

some of them would already contain water,or even car fuel