Analyzing the Design and Performance of a Retrofit Solar Thermal Combination DHW and Space Heating System (2010)

This paper comes from James Dontie of Gustavus Adolphus College. It reports on an analysis of a solar thermal combination domestic hot water and space heating system which was retrofitted into a residence in Minnesota.

The analysis attempts to distinguish between improvements to the residence’s heating system that came through using a solar thermal system instead of a conventional system, as compared to efficiencies that were the result of simply installing new equipment.

The paper finds that the system cut down on natural gas consumption by about 34% compared to the average of the previous four years, and that that number can largely be attributed to the system’s temperature control system.

Author: James H. Dontje

Date: 2010

Pages: 6

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