Harman Stove‘s biggest wood stove has the lowest emissions rating. Preliminary testing resulted in emissions of approximately gram per hour. The noncatalytic Harman TL300 uses the exclusive FireDome combustion technology in a 3-cubic-foot firebox for extra long burns and even heat output. The FireDome combustion system has a special dome-shaped combustion chamber that causes flue gases to concentrate and burn at higher temperatures for cleaner burns. This system is also responsible for more even heat output over the burn time of each load of wood. Contact: (717) 362-1422, sales@harmanstoves.com or www.harmanstoves.com.