Model No. : JSG-B3Standard Features:1. Winter & Summer Switch

2. Automatic Ignition at extremely low water pressure

3.Lowest start-up water pressure: 0.02MPA

4.With advanced flue outlet, inhaled duct and exhaust pipe

5.With completely sealed combustion chamber

6.With 20-minute timer.

7.Flameout safety device

8.Dry burning protection device.

9.Over-high wind pressure protection

10.Over-high water pressure protection

11.Electricity leakage protection

12.Air and gas linkage device

13.Anti-deflagration protection

14.Electric circuit overload protection

15.Anti-frozen protection

16.Anti-frozen protection

17.ODS device optional

18.High efficiency and energy saving

19.Digital displayer

20.Muti-protection safety device.