We heated part of our home, and will heat the whole thing next year, due to them. The number of dying trees along the roads have made it so town/state/electrical companies, etc. just go around dropping trees next to the road and just leave the pieces for people to scrounge over. I have 2.5-3 full cords of oak ready for next year in our yard from roadsides. Will start scrounging for 2020-2021 soon.