How to judge whether the purchased gas boiler is energy-saving?

How to judge whether the purchased gas boiler is energy-saving?

1. Does the fuel burn completely
       For an energy-saving gas boiler, the combustion of the fuel in the furnace is very sufficient and the combustion efficiency is high. When the other parameters are the same, the same amount of water is heated to a certain temperature, and the boiler with high combustion efficiency uses much less fuel than the low-efficiency gas boiler, which reduces the cost of purchasing fuel, and the energy saving effect is remarkable.

2. The temperature of the exhaust gas is high or low
       For energy-saving gas boilers, the temperature of the flue gas after the fuel is burned should not be too high, and the temperature is too high, indicating that the released heat is not supplied to the water in the boiler, and the heat is discharged into the air as exhaust gas. If the temperature is too high, the thermal efficiency of the boiler will decrease and the energy saving effect will decrease.

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