most common thing cut for firewood around here is red oak, post oak, black jack, and hickory. but we like dead elm (pronounced hereabouts- "ell-um") burns very hot (but fast) and burns almost completely up, leaves very little ash.
and burn at least mostly dead (seasoned) wood. burn to much green wood and you'll burn your house down.
and burn at least mostly dead (seasoned) wood. burn to much green wood and you'll burn your house down.