Ask about the condition of the oak wood before purchasing it. Oak needs to be cut and stored in a dry area for at least nine months prior to use, as stated by The Chimney Sweep. A hot fire that doesn't smolder requires properly seasoned dry oak.
Place your oak wood in a dry storage area for at least a year if you cut and split it yourself, recommends Colville National Forest. This allows the wood to season properly and provides the best fuel efficiency in your fireplace.
Set small amounts of seasoned oak wood in your fireplace. Burn small fires that are adequately hot rather than a large fire with smoldering wood. Even under the best conditions, fireplaces are not very fuel-efficient. Use it to heat one room and for its aesthetic value rather than trying to heat your entire home.