YANMAR’s Energy Systems division began operation in 1984, and today has installed more than 375,000 Combined Heat and Power (CHP or cogeneration) and Variable Refrigerant Flow (VRF) Natural Gas Heat Pump systems worldwide. Using a YANMAR-designed, lean-burn Miller Cycle Gas Engine, which was developed from the company’s world-class diesel engine technology, these environmentally friendly systems are designed for reliability, efficiency, energy conservation, comfort, and long-term savings.