If you want this winter to be warm and efficient, make sure your you have good chimney pipe and fireplace venting pipe. Most people use the Class A Chimney Pipe but if you are using a pellet stove you will need pelletvent chimney pipe. Chimney liners are also very important if you have an masonry fireplace.
When using wood stoves, make sure your wood stove has good stove pipe. Stove pipe connects the stove to the chimney pipe. You should never use stove pipe once the venting gets to the wall or ceiling. Anytime you have a chimney, you need to make sure you have good chimney caps because they help tremendously with efficiency.