1) Low water pressure starup function
2) Instant water heating, 3-5 seconds supply hot water
3) Double ignition pin,Water control automatic impulse ignition by Water-gas interlock valve
4) Flame out failure protection , Anti-dry combustion
5) Over heating and 20 minutes timer protection device
6) Winter-summer switch for gas saving
7) Excellent heat exchanger asorbs heat more efficiently.
8) Special Cold and hot water convert.