. Bosston water heaters 10L, 15L and 30L, with High precision Thermostat, Thermal cutout, High working pressure, Multifunctional Valve, Thermometer Display, Pilot Lamp, Easy - to - Clean Panel, Single Weld Line, CFC-free Insulation, Enamelled Inlet and out, Magnesium Node, Polyurethane Insulation, Blue Diamond Enamel Coating...