The ThermoPower-VTS thermosyphon evacuated tube solar collectors are popular around the world for their simple, economical, and effective production of hot water. They work passively, with heated liquid from the evacuated tubes rising into the tank. The use of SunMaxx evacuated tubes ensures that water is heated to the highest possible temperature, even in cold climates.
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DIY Solar Hot Water ThermoPower™ VTS 15 Tube / 40G Thermosyphon by SunMaxx
10 Year SunMaxx Warranty
3/4″ Female NPT Connections
Suitable for 1-3 people
Manufactured since 2006
OG-300 Certified – Certified for Solar Tax Credits
40 Gallon integrated storage
No pumps… -
DIY ThermoPower™ VTS 30 Tube / 80G Thermosyphon Solar Hot Water Kit for Hot Water
10 Year SunMaxx Warranty
3/4″ Female NPT Connections
Suitable for 3-5 people
Manufactured since 2006
OG-300 Certified – Certified for Solar Tax Credits
80 Gallon integrated storage
No pumps… -
ThermoPower VTS 20 Tube Non-Pressure Thermosyphon Hot Water System
20 Tube 40 Gallon Thermosyphon Collectors DIY Solar Hot Water Kit
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ThermoPower VTS 30 Tube Non-Pressure Thermosyphon Solar Hot Water System
30 Tube 80 Gallon Thermosyphon Collectors