In many rural/remote locations – especially off the grid – heating with wood (or oil-based products) is the only way to survive the winter. It isn't necessary t

In many rural/remote locations – especially off the grid – heating with wood (or oil-based products) is the only way to survive the winter. It isn't necessary to cut down entire forests to produce wood either – if you own some forest it is largely a byproduct of cutting down dangerous/dead trees and clearing ones that fall down naturally. Burning wood only becomes unsustainable when it is done on a commercially viable scale.