Duofin is the efficiency alternative to steel pipes!
No welding needed to assemble - you do it your self using simple hand tools!. Duofin pipes deliver fast heat with low water volume. Use it to deliver heat under benches, around the perimeter, or under gutter for snow-melt. Also no maintenance painting needed…. Ever.

Hot Water Systems

1. BioTherm MicroClimate Heating Systems
   • BioTherm MicroClimate Systems
   • Benchwarmer
   • Roll-n-Grow
   • MicroClimate Components & Accessories
2. Finned Pipe Heating Systems
   • Finned Heat Pipe Systems
   • DuoFin Finned Heat Pipe Systems
   • StarFin Finned Heat Pipe Systems
   • StealthFin Finned Heat Pipe systems
   • I-Fin and Copper Aluminum Finned Pipe Systems
   • FAQs - Finned Heat Pipe Systems
   • Finned Heat Pipe Components
3. Warm Floor Heating Systems
   • Warm Floor Heating Systems (HDX)
   • HDX Tubing Specifications
   • Warm Floor Heating Systems (GreenPEX)
   • GreenPEX Tubing Specifications
   • "Warm Floor Projects” Article
   • "Reconsidering the ¾" Paradigm” Article
   • HDX - GreenPEX Components
4. Megatube Heating Systems
   • Megatube Heating Systems
   • Megatube System Components
5. Welded Steel Pipe Systems
   • Welded Steel Pipe
6. Hydronic Unit Heaters
   • Hydronic Unit Heaters
7. Heat Sources
   • Low Mass Boilers
   • BoilerSmith firebox Boilers
   • Heat Exchangers
   • Pre-Assembled Systems
   • Wall Hung Water Heaters
   • Heat Source Components and Accessories
   • Mod Con Double-Stacked Boilers
8. Irrigation Pre-heat Systems
   • Irrigation Preheat Systems
9. Installation Services
   • Installation Services