Recommended series: 225T series, 365T series
 
Wanhe is a leading brand of gas water heater in China, in 1992 developed China's first ultra-thin water control automatic gas water heater, and then led the industry technology upgrading for many times, in the domestic gas water heater market comprehensive market share for 14 consecutive years, the export volume is also leading the industry similar products, brand strength and industry status is clear at a glance.
 
In the beginning, Wanhe was also a spare parts supplier of Wanjiale, but later Wanhe not only caught up, but also gradually opened the gap with Wanjiale. According to the 2018 interim report, Wanhe's net profit is almost twice that of Wanjiale. Wanhe has led or participated in the drafting and revision of national standards for gas water heaters, gas cookers and disinfection cabinets for many times, and has obtained more than 300 patents, making it the enterprise with the largest patent reserves in China's gas appliance industry.
 
Compared with foreign brands, excellent cost performance is undoubtedly a major advantage of Wanhe. Wanhe's product line covers a complete range of products, providing rich choices in different price points, functions and appearances, including 225T series with multiple gas source options, 365T with basic self-adapted temperature, 536T with healthy and antibacterial temperature, 585T with large water output, L6 and L7W series with hot water circulation pump, 310W series with balanced type, 615T series with condensing type, etc.
 
For consumers who are practical, the 225T series is a very suitable choice. This series can use two gas sources: liquefied petroleum gas (20Y) and natural gas (12T). Before buying a gas water heater, you must determine the type of gas at home, different gas has completely different components and pressures, different products correspond to different gas sources, and you must not modify or replace the gas source without permission.
 
In the past, common gas sources were artificial gas, natural gas and liquefied gas. Among them, artificial gas products are now extinct, and natural gas is the most commonly used gas choice, the main component is methane, and the pressure is 2000Pa. Old houses generally still use liquefied petroleum gas, which is composed of propane and butane, and the pressure is as high as 2800Pa. Odorous sulfide is added to all gas gases so that leaks can be detected in time. The 225T series has the function of automatic shutdown when CO exceeds the standard, and supports the use of old houses or water-stressed communities in low water pressure conditions, which is a good and inexpensive public choice.
 
The 365T constant temperature series only supports natural gas source, and the function has been improved in the 225T series, it is equipped with an intelligent temperature sensor chip and a precision gas proportional valve, and the temperature control accuracy can reach ±0.5 °C, and it also uses intelligent segmented combustion technology to adapt to the different use environments of the four seasons, and the safety protection measures such as boot self-test are also quite perfect, and the price of 13L products is 1400 yuan, which is very affordable. However, the appearance of this model is concave and convex fine lines, although it is very artistic, but because the strong exhaust type is often installed in the kitchen, the oil smoke will be adsorbed on the surface of the gas water heater and is not easy to clean.
 
In addition, the condensing gas water heater launched by Wanhe is also very competitive, and the condensing water heater can greatly reduce the amount of gas used and make full use of the combustion heat. The 615T series can achieve 98% heat utilization, the exhaust gas temperature is only 50 °C, and the comprehensive daily gas expenditure, it is recommended to buy condensing series products with lower cost for large families who often use hot water.
 
However, it should be noted that most of Wanhe's gas water heater products are non-antifreeze models, and consumers in the northern region should pay attention to installing antifreeze devices or buying high-priced antifreeze products before purchasing and installing to prevent ice damage to water heaters in winter. Wanhe gas water heater has a 6-year warranty, and the installation service is first-class in the industry.