This is a high-quality control board compatible with various Harman and Heatilator pellet furnace models. It comes with a manufacturer warranty of 1 year and is perfect for those looking to replace their old or damaged control board. The product is made by E-cowlboy and is specifically designed for use with pellet stoves that use pellets as fuel. The control board is compatible with several models, including the Harman PF100 and PF120 Pellet Furnaces and the Heatilator Eco-Choice BIO-120 and BA100 Pellet Furnaces. It is a reliable replacement part that ensures your furnace runs smoothly and efficiently. If you are in need of a new control board for your pellet furnace, this product is an excellent choice.