Pollutants from electric utilities can contribute to environmental problems. The use of natural gas to power boilers can significantly improve emissions profiles. Holtzople is proud to offer the Slant/Fin EC-20, which has a proprietary cast iron eutectic heat exchanger resistant to thermal shock and corrosion. The cast iron is flexible and resilient, allowing for lower temperature operation. This yields significant energy savings for you, and lowers emissions for the environment.