tuk
Well-Known Member
I don't think one solution will fit all off-grid scenarios, it might not always be convenient or even lawful to build a fire, similarly a magnifying glass will only work at certain times during the day...assuming its not cloudy & the sun is close enough.
Having a variety of methods on hand to create the necessary heat is probably the way to go.
Having a variety of methods on hand to create the necessary heat is probably the way to go.