Water heaters are essential household appliances in our lives, but facing the various brands of water heaters on the market, how to choose and buy is a headache for many consumers; gas water heaters use gas as the heat source, and their heating speed and efficiency are very high, not only It saves more electricity than traditional electric water heaters and is safer to use. Gas water heaters are more and more popular because of their environmental protection, high efficiency, convenience and other advantages.
At present, the price of gas water heaters is slightly higher than that of electric water heaters, and the heating speed is fast and the water temperature is relatively stable. The volume is relatively small, and the amount of hot water is not limited. It is an instant heating type. It does not need to be warmed up for a long time and can be used at any time, so it is more suitable for families with a large population. However, the gas water heaters on the market are springing up like mushrooms after rain, so it is very important to choose a high-quality gas water heater.
How to choose a gas water heater? When buying a gas water heater, is there anything that needs to be paid attention to? The author has sorted out the following points, hoping to help you.
1. Determine the type of gas
At present, the gas sources of gas in my country mainly include natural gas, artificial gas and liquefied petroleum gas. “T” means natural gas, “R” means industrial gas, and “Y” means liquefied petroleum gas. Both natural gas and artificial gas are transported by pipelines, and liquefied petroleum gas is mostly packed in cans, commonly known as gas tanks.
The components of the three gas sources are different, so the sizes of the designed and manufactured burners and other components are also different. Generally, a water heater can only be used for one gas source. Therefore, when choosing a gas water heater, you must recognize the signs and choose products with the same type of gas used in your home.
2. How to choose the liters of gas water heater
The number of liters of a gas water heater indicates the water output per minute when the temperature rises by 25°C, that is to say, how many liters of water can be heated by 25°C in one minute. Therefore, the liters of a gas water heater refers to the ability of the water heater to heat water to a certain temperature within a certain period of time.
For example, the water inlet pipe is cold water at 5 degrees Celsius, and it is set to burn to 40 degrees Celsius. The water output per minute of a 13l gas water heater is 13*25/(40-5)=9.3l. That is: the actual water output per minute = liters * 25 / actual temperature difference.
We can choose the number of liters of gas water heaters according to the structure of the house and the needs of use. A family with one bathroom and one kitchen can choose 10-12 liters. If the shower and faucet use hot water at the same time, it is recommended to choose 13 liters. Households with two bathrooms and one kitchen choose 13-16 liters. In addition, the situation of using hot water at multiple water points at home or in winter should also be considered. The author recommends choosing a large number of liters if conditions permit.
3. The position of the gas water heater fan
The main function of the fan is to provide the water heater with the oxygen required for combustion, to remove the smoke after combustion, and to resist wind pressure.
The fans of gas water heaters are divided into two types: lower (strong blower) fans and upper (strong suction) fans.
The bottom-mounted fan has high requirements on internal airtightness of the burner, heat exchanger, etc., and the cost of internal construction materials is relatively higher. Due to the position of the fan, the wind blows upwards from the bottom, and there is a gas distribution structure, so the natural gas burns more fully here, so the thermal efficiency is higher. At the same time, in terms of safety, Qiangdrum will not cause smoke backflow because it is airtight when it encounters a strong outdoor wind.
4. Gas water heater brand
What brand should I choose to buy a gas water heater? The main brands of gas water heaters on the market include Linnei, Noritz, A.O. Smith, Wanhe, Macro, Midea, Haier, Fotile, Vantage, Sakura and other brands.
The above data is provided by ZDC Internet Consumer Research Center. It is ranked by the brand share of gas water heaters. The top two domestic appliance giants, Haier and Midea, are followed by Linnei, Macro, Wanhe and Smith. The author recommends choosing the well-known brands in the above picture, because the products of well-known big brands have better design and innovation, higher production standards and stricter quality control, and can provide better after-sales service and guarantee, so that you can enjoy more Good shopping experience and quality of life.
