... efficiency; 3. 3 years warranty for whole system; 4.CE,SRCC,SK High Quality Compact Pressurized Solar Water HeaterAdvantagesA)Highly absorptive with an ... 0.6 MPa, can be connected directly to city water system.D)No water running inside the evacuated tubes, the water ... foam, water tank with carton, bracket with carton High Quality Compact Pressurized Solar Water Heater (Heat pipe type)