Haining Reshen Solar Energy Industry Co., Ltd. [China]

1)absorb heat efficiently and transfer heat continuously 2)using life: 15-20 years 3) anti-hail

tube size: 58*1800mm

double borosilicate glasses

copper bar diametre: 12mm

absorbing efficiency: 90%

transfering efficiency: 92%

emmitance: 4%

2012 hot selling high efficiency evacuum tube solar water heater heat pipe