... Failure Protection,big LED screen 3.Digital constant temperature gas water heater 1.low startup water pressure, meet the requirement of both the high ... -floor and low water pressure user. 2.Anti-electricity leak,Anti-no water buring,Anti-over temperature,Anti- ... invioce exhuast smoke device, the smoke can be exhuasted to outdoor oxygen. 5.Four season apart buring technoloy,the temperature ...