Use Hardwoods: Hardwoods for example oak, maple, or birch are denser and melt away hotter and cleaner than softwoods like pine or spruce. Hardwoods generate significantly less creosote and supply longer-Long lasting, regular warmth. Have two blocks beneath the fireplace insert mounting frame and another two blocks higher than it. https://chimneysweep56563.blog2freedom.com/28095815/fireplace-things-to-know-before-you-buy