Greenwood makes clean, biomass-fired central heating systems for the $25 billion home heating market. Appliances are sold through dealers to a consumer reducing home heating bills by 70%. Each improves air quality and lowers fossil fuel use. The patent-pending CrossFire™ Combustion is a game-changing technology for efficiently converting woody-biomass to usable heat, while satisfying EPA requirements. Company pre-money value is $4 million.