... water heater 1.100-300L 2.CE,ISO9001,CCC certificate 3. best quality,can install anywhere,offer OEM 1. that type ... copper pipe for exchange hot,high efficient, keep water more clear.3. this product is most suitable ... still can work,no leak4. collector tubes according water tank capacity, can design for customer,made with ... : 1.2 Mpa7. warranty: 3 year for water tank, and 10 year for glass tubes8. tank ...