Masonry heaters have been heating homes for centuries. First developed by Scandinavian and Russian bricklayers, these ingenious wood heaters provide continuous and long-lasting heat with minimal emissions and maintenance. If you're looking for a more cozy fireplace option for your Katahdin cedar log house, you might want to look into masonry heaters. They can be custom-built by an expert bricklayer with experience in construction, or excellent prefabricated designs can be purchased from companies like Tulikivi.