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1. the products use super heat condition pipe and has a good effect of heat exchange
2. the insulation layers use the up-to-date technology and has a good effect of temperature preservation which allows the water to stay warm for about 70 hours
3. Superior heat-preservation ensured by one-off molding polyurethane foam with thickness 50-60mm
4. stable and reliable performance, well wind resistance
5. meet the mankind healthy bath standard,the material of inner tank is SUS304-2B stainless steel plate, the silica gel ring sealing has a long life against the erosion and it do no harm to health.
ETC non-pressurized solar water heater