FEATURES:

1. Double ignition pin, automatic electrical pulse ignition device

2. Flame failure safety device, water-gas interlock valve device

3. Over-temperature protection, antifrost protection

4. Safety devices for accidental flame out. Low water pressure starting, high water pressure protection

5. 20-minute timer is optional

6. white-coated, metallic white/silver color is optional

7. Flue exhaust type or balance exhaust type

8. Continous control of gas and water

9. Water drainage for antifreeze

10. The 0.02Mpa low water pressure start

11. With anti-blockage function

12. Three knobs with summer and winter