... Solar water heater frame 1.EN12975 solar keymark 2.Anti-freezen & pressurized 3.10 years warranty Solar water heater frame Material of Model:1.the heater ... reducing your fuel cost13) Domestic and commercial use, solar collector is ideal for both domestic and commercial use, and ... anytime and enjoyable6.multifunction:bathing,washing,domestic heating,swimming pool, heater floor...7.anti-freeze:using the ...