You may be thrilled to have a fireplace in your home. Your hearth provides an inviting glow and can become the center of a room. However, most masonry fireplaces are designed primarily for decoration and provide little heat. Compared to woodstoves, fireplaces are extremely inefficient: Fireplaces frequently only have 10 percent efficiency, versus 60 percent or more efficiency from a wood stove.
Certainly, it isn’t worth your while to chop 100 logs to get 10 logs worth of fuel. If you want to generate heat in your wood-burning fireplace, you are going to need to make some changes. Before doing that, though, ensure you use proper equipment and fireproof materials. Do not install anything in your chimney or fireplace that will endanger your safety during use. If you have any concerns, consult an expert before lighting a fire.
There are a few causes to fireplace inefficiency. First, the heated air is siphoned directly from the house through the chimney flue. Second, while the heated air rushes from the house, it creates negative pressure in the house and contributes to cold air leaking into the house through any other openings. Third, the rush of air over the fire makes the wood burn more quickly.