Evacuated tube solar collector, heat pipe solar collector
58mm 1800mm low price solar water heater evacuated tube solar collector
1. there is no water in the vacuum tube, the system can work as usual if one tube is broken.
2. operation pressure is 0.7 Mpa, and the test pressure is 1.0 Mpa.
3. it is used with existed tank in the basement.
4. the frame can be installed on the flat roof or inclined roof.