... diffeference of collector temperature and tank temperature gets to the set value, the circulation system will start work. It ... material,Aluminum Alloy,Thickness,1.8mm,Insulating layer,compressed rock woolHeat Pipe pure red copper TU1+water,transfer power ... )0.240.320.330.390.5Container Loading Quantity(set)20102787763574022116916613613040HQ278213209172171Price(USD) Split heat pipe water heater system