gas water heater                                                                                                                         1)   Anti-drying-burning protection

2)   Anti-wind flow back device

3)   Anti-frozen device

4)   Flame failure safety device

5)   Fire and water separate regulation

6)   Overwater pressure protection device,

7)   Safety device for accidental flameouts,

8)   Overwater temperature protection safety device,

9)   Over air pressure protection device,

10)  Pressure release and drain valve.

11)  Summer/winter switch,hot/cold water switch

12)  Cold and hot water Switch.

13)  ODS is optional.

14)  LNG or LPG available.

15)  OEM welcome