Question

WHY IS BURNING OF WOOD IS UNDERSIRABLE

Answer 1

The smoke that wood releases as it burns is actually a mixture of many different types of gases, some harmless, but many harmful, especially if breathed in. The exact concentrations of each gas will depend on the type of wood and its condition. Dry, seasoned wood generally produces the least harmful smoke and the most heat. The more smoke that wood produces as it burns, the less heat it creates, so a small amount of smoke is desirable when burning wood.