Good advice about oak, hickory, and importance of dried wood. If the new place does not have a covered shed for the wood pile you might want to consider that or at least a small covered area for stacking wood before snowfall or rain. The wood will burn wet if you get a good fire started with dry wood, but I preferred to keep the wood dry if I could.

I also found that a mixture of green and dry wood worked well in banking a fire for overnight if the fireplace is actually used for heating, but the most efficient burning comes from the use of dry hardwood.

The length of the wood you have cut would be determined by the width of the fireplace. The ideal mix of firewood would include six to ten inch diameter logs with some split and some still round and a few two or three inch pieces which are useful in starting fires. You can split larger pieces of dried logs to get starter wood.