1.Unique patent Tech 2.water and electricity separation 3.98% heat efficiency 4.Warranty 3years Constant Temp water heater details: A ) Key Features:1, LED dynamic display of digital color;2, the high sensitivity of leakage protection; 3, the software set-temperature protection; 4, machinery, electric control over-temp protection; 5, mechanical manual reset two dry-heating protection; 6, fault ...