This paper focuses on a drying system that has been developed for drying peanuts, tobacco and forage crops, but which could be used for other low temperature applications. It combines two types of collectors, a black film hot air collector and an integrated black rock storage and collection system. The collection and storage system can be manufactured on-site by a farmer from readily available materials for a materials cost of about 2. 00/square foot of collector area. In addition, the microprocessor based data acquisition system which is used to monitor the performance of the system is described. The system uses an Intel 8010 microprocessor, a Zeltex 10 bit Analog to Digital Converter, a 60 point crossbar thermocouple scanner and a self-compensating thermocouple amplifier.