Researchers at North Carolina State University have developed a practical solar heater for poultry houses as part of a project partially funded by USPOULTRY and the USPOULTRY Foundation, the organization announced. Sanjay Shah and his colleagues developed and tested the low-cost solar heater that warms the air as it passes through a black plastic housing that has been heated by the sun. The system is designed to supplement the heat generated in poultry houses using propane-fueled equipment and should reduce overall heating costs at poultry farms where the systems are installed, the group said.