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Thermal Performance Ratings, derived from the FSEC testing and certification program, are a useful tool in comparing the efficiency and economics of solar collectors used for pool heating. Since systems of this type normally operate in the low temperature range (75°F-95°F), this is the rating provided for comparisons. It must be stressed that these comparisons are only a guide and should not be considered as a rank ordering of collectors. Such considerations as component sizing and proper installation procedures are equally important in determining a system's overall efficiency. In addition, because of the variability of weather conditions, instrumentation accuracies, and other test condition constraints, the thermal performance of any two collectors should be considered approximately the same if their ratings are within 25 Btu/(ft²day) of each other. Bear in mind that these comparisons are concerned with thermal efficiency and energy output per investment dollar only; they do not imply equivalent reliability or durability.
1) To compare the thermal efficiency among the various collectors, look at the rating listed in the last column, Btu/(ft²day); the higher the number, the greater the solar energy collection efficiency (which means it will require fewer square feet of collector area to heat the pool).
2) To determine a collector's energy output per investment dollar, use the rating listed in the next to last column, Btu/day. Divide this figure by the total installed cost of the system. Multiply the result by the number of collector panels or piping modules to be used.
The certified pool collectors are listed in alphabetical order, by manufacturer name. Please select the specific manufacturer from the options provided below.