This paper was written by Mitch Thornton of the Canadian company Mountain Electric. It reports on his efforts to design and install his own “hot box” solar thermal collector.
The plan was to build a hot-air box that would transfer captured solar energy via hot air transfer between the collector and the basement of the residence in question.
The system was designed so that the cold duct draws cool air from the floor of the basement and sends it into the lower front of the hot-box; then the warm duct pulls the heated air from the top back of the hot-box and blows it around the basement. After a week of monitoring the system proved effective, although the payback time may prove to be a few years.
Author: Mitch Thornton
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