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Evacuated Tube retrofit system 150l geyser

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On 2023/07/20 at 4:44 AM, BernardT said:

 

I think getting a length of 80mm LDPE irrigation pipe and cutting it length ways and just putting it around the tubes is a better idea

Nearly 15 years ago I added Evacuated Tubes for hot water on my newly bult home and literally burnt my fingers. The temperature of water under pressure can exceed 100 degrees Celsius. It can melt plastic and it did so in the end I had to adapt, See the attached pdf. The blockage mentioned is the plastic pressure release valve on the roof that was melted and transported down the pipe to where it cooled down and solidified. As this resulted in my redesigning the system I think it is the only one in exitance.    

SolarWater2023.pdf

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