Enjoy the warmth and convenience of BIO BLOCK Firelogs all year long! In cold weather, burn BIO BLOCKS in your wood stove or fireplace. In the summer, BIO BLOCKS are great for camping and fit perfectly in chimineas or fire pits. BIO BLOCKS are made of 100 percent kiln-dried, hardwood sawdust compacted together under high pressure. BIO BLOCKS consistent size, shape and low moisture content provides a hot fire with minimal ash or smoke. BIO BLOCKS can be transported into state parks without concern for spreading invasive insects. No chemicals are added, making them safe for cooking over a campfire or in a pizza oven. BIO BLOCKS packs are clean - ideal to take in your RV or stack and store in your garage or basement for the winter.