There are generally four types of gas water heaters on the market.Although they look similar on the outside, their performance is very different.
The first kind Straight water heater:
Features: The air needed for the combustion of the water heater comes from the room, and the smoke produced by combustion is discharged to the room.
Advantages: small size, low price, saving gas, easy to install and use.
The second kind Flue water heater:
Features: The air needed by the water heater is taken from the indoors, and the flue gas produced by combustion is discharged to the outdoors through the flue.
Advantages: Water yield can be increased to 8L-10L\ min
The third kind Balanced water heater:
Features: The air needed for the combustion of the water heater comes from indoors, and the smoke produced by combustion is discharged outdoors.
Advantages; Water heater gas and internal isolation combustion are not affected by an indoor, high safety.
The fourth kind Strong row water heater:
Features: The air outlet of the water heater is equipped with an exhaust fan, which forces the gas of the gas to be discharged outdoors by mechanical force. In addition, the strong-row water heater draws fresh air from outside.
Advantages: High wind pressure, the indoor environment has little influence on the water heater, and safe to use. Large airflow, fine flue, easy to install.