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 switchon summer position only some burners must operate and on winter position all burners must operate.
12) Cold and hot water Switch.
13) ODS is optional.
14) LNG or LPG available.
15) OEM welcome