BioTherm DuoFin™ for supreme heating eveness.
DuoFin provides incredibly even heating across the width of your greenhouse growing areas. Its unique tapered fin design delivers a combination of convective and radiant heating quietly and efficiently. Having only two fins means that more loops are needed to meet your heat load than with its sister product, StarFin—but it also means you’ll never have to clean debris from the fins. Also, the large inside diameter means less pumping energy is required to provide greater evenness than any competitive system. BioTherm DuoFin™ is our lowest heat output finned pipe commonly used for under bench, perimeter, and in crop heating. Its unique tapered vertical fin delivers a combination of convective and radiant heating quietly and efficiently. Also available with shorter fins, DuoFin Lite is designed for areas requiring less heat.
|Lengths Available:||12' standard.
Custom lengths available.
|12' standard. Custom lengths available.|
|Aluminum Type:||#6063-T5 extra hard alloy||#6063-T5 extra hard alloy|
|Pipe Weight:||0.629 lbs./ft.||0.404 lbs./ft.|
|Shipping Weight:||12.72 lbs. per 12' length||14.16 lbs. per 12' length|
|Water Volume:||.04 gallon/ft.||.04 gallon/ft.|
|Gaskets:||-30°F to 230°F||-30°F to 230°F|
|Water:||pH must be maintained between 7.5 ≤ -pH- ≥ 8.5||pH must be maintained between 7.5 ≤ -pH- ≥ 8.5|
|Max Operating Temp.:||230°F||230°F|
|Max Operating Pressure:||30 PSI||30 PSI|
|DuoFin Heat Pipe Output Ratings (Output Btu/hr/ft)|
|Output based on 65° ambient temperature.|
|Water Temp (F°):||130°||140°||150°||160°||170°||180°||190°||200°||210°||220°|