My dad used to, not totally but he had a good wood furnace that would do about 70% and it made hot water too.
Its a PITA though, my job when I was little was to fill the basement every Saturday from the wood pile with the wood needed for the following week. Which I hated, than you had to feed it.
IMHO its nice to know it can be done if you had to, and its not the end of the world.
We used to carry about a 1/2 cord in his F150 all the time with no ill affects. The truck would be loaded until it just about ran out of suspension travel.
