What Types of Gas Water Heaters Are There?

Water heaters have become a must-have household appliance for many families. At present, there are four main types of water heaters on the market: gas water heaters, electric water heaters, solar water heaters, and air energy water heaters. Among them, gas water heaters and electric water heaters are most frequently used.

Under the gas water heater, it can be subdivided into various types, such as the strong discharge type and balance type water heaters that we commonly see when purchasing. Today's article will take you to a more comprehensive understanding of what types of gas water heaters are and what are the differences between them.

At present, there are three main types of gas used in gas water heaters in my country: artificial gas, natural gas, and liquefied petroleum gas. According to different gas sources, gas water heaters can be divided into gas water heaters, natural gas water heaters, and liquefied petroleum gas water heaters. Because artificial gas is not very environmentally friendly and has a relatively high safety risk, gas water heaters are basically no longer sold on the market, mainly natural gas and liquefied petroleum gas water heaters. Buildings in cities and towns are now basically connected to natural gas pipelines, so the installation of natural gas water heaters is very convenient, and the liquefied petroleum gas model is mainly suitable for old communities or rural self-built houses that have not yet been connected to natural gas.

What needs special attention here is that general gas water heaters can only be used for one gas source (gas type), and water heaters with different gas sources are different in general, so when choosing a gas water heater, you must first confirm the type of gas used in your home and temperament, choose a water heater that meets the gas conditions at home, otherwise it will not be installed and used normally.

According to the different installation locations, gas water heaters can be divided into indoor units and outdoor units.

Generally speaking, it is safest to install gas water heaters outdoors, so if conditions permit, outdoor gas water heaters can be preferred.

If there is no such condition, and it needs to be installed indoors (not bathroom), a strong discharge or balanced water heater should be selected.

If it is installed in the bathroom, you need to choose a balanced gas water heater to ensure the safety of the bathroom air.

Since gas water heaters heat cold water by burning combustible gas, on the one hand, combustion requires air supply, and on the other hand, combustion inevitably produces flue gas and exhaust gas. The flue gas may contain carbon monoxide. If it is not cleaned up in time, a safety accident may occur. Therefore, how to discharge the flue gas cleanly has become a technical problem that gas water heaters must solve.

From the perspective of different supply and exhaust methods, in the 40-year development history of gas water heaters, the following types of gas water heaters have appeared. When you see these two water heaters, you must take a detour!

(1) Direct-exhaust water heater: This is the first generation gas water heater launched in China in 1979. The flue gas generated during use is directly discharged indoors, and the oxygen consumed by combustion also comes from the room, so there is a high safety risk. , is prone to carbon monoxide poisoning. 

(2) Flue-type water heater: This is a second-generation gas-fired water heater product. Although the flue gas generated by combustion is discharged to the outside, there is no forced ventilation device, and it is easy to cause the safety risk of undischarged carbon monoxide entering the room. 

(3) Strong exhaust water heater: This is a set of electric fans added to the flue-type water heater to force the flue gas out of the room, and the electric fan can also make the water heater supply sufficient oxygen to ensure full combustion and reduce carbon monoxide. produce.

(4) Balanced water heater: This kind of gas water heater passes through the internal and external pipes, the oxygen required for combustion comes from the outdoors, and the generated flue gas will also be discharged outdoors, which better ensures the safety of use.

The above briefly introduces the types of gas water heaters. If you want to know more or buy gas water heaters, please contact us.

Greaidea is a professional custom gas water heater manufacturer with over 20 years of experience. In our R&D department, 12 engineers are employed to guarantee our R&D advantage and innovation advantage. The test room and assembly line have been upgraded. Spend 3% of revenue on research and development each year. With an excellent manufacturing team and QC team, we have achieved an annual output of 500,000 sets of gas water heaters with the best quality.