Heat Exchanger WVU (IMAGE) West Virginia University Caption A poultry barn-specific heat exchanger provides heat through wood boiler-heated water with use of a fan to distribute heat throughout the poultry barn. Credit WVU Photo Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.