The list of gas water heaters recommends energy efficiency, AO Smith, Yunmi, Wanhe, Wan Jiale, Haier and Midea.

1. Energy efficiency: It comes from Japan, and this brand is currently used in my home. Compared with other brands, the biggest advantage of this water heater is that the computer motherboard for controlling water output is assembled after being imported from Japan, so there is no doubt about its durability and advancement. In addition, the noise during operation is particularly small, unlike the hum of domestic brands, this is a slight hum. It has been used for almost three years, and there has never been any problem, including it still works normally in the coldest three or nine days, and the water output will not be suddenly cold, which is very stable. For a family of three, the water output of 13L is enough for daily use, which is worth recommending.

2. AO Smith: a joint venture from the United States, specializing in the production of household bath appliances, which is quite influential in China. Whether it is appearance workmanship, performance and quality, it is one of the best brands. In major supermarkets and home appliance stores, you can see its specialty stores, with many purchase channels and relatively perfect after-sales. Friends who need it in the near future can consider it.

3. Yunmi: a sub-brand of Xiaomi, specializing in R&D, production and sales of various household kitchens and bath appliances. With the good reputation accumulated by users in the early days, Yunmi's products are also sought after by consumers in the market, which is famous for its cost performance. Of course, the quality is also trustworthy and can be paid more attention to.

4. Wanhe and Wan Jiale: These two brands of water heaters are also domestic manufacturers specializing in the production of kitchen appliances for a long time, with strong R&D strength. Their products include hoods, cookers, disinfection cabinets, ovens, toasters, etc. Among them, water heaters are well-known in the industry, with certain influence and cost performance, which is worth recommending.

5. Haier and Midea: Domestic enterprises specializing in the production of white goods often use their products in our daily life, such as televisions, refrigerators, washing machines, air conditioners, small kitchen appliances, etc. For them, it is very easy to develop the most advanced technology to ensure users' good experience, especially after-sales outlets all over large and small cities.