In modern family life, gas water heaters have become one of the indispensable household appliances. Since gas water heaters involve the mixing of gas and water, if the equipment design is not reasonable or the quality is not up to standard, it may lead to serious safety problems such as gas leakage and water heater explosion.
Therefore, choosing a gas water heater with excellent performance is not only related to the quality of our daily life, but also related to the safety and happiness of the family. There are many brands and models of water heaters on the market, so how to choose a water heater?
In addition to the brand and price, there are many details to pay attention to. After changing the water heater 3 times, I realized: I would rather spend more money, and the gas water heater should also adhere to the "5 do not buy"!
1. Don't buy non-constant temperature water heaters
If you want a better hot water experience, it is recommended that you avoid buying ordinary water heaters, which do not have a constant temperature function, and the water temperature is always high and low when you take a bath in winter, which makes people feel tormented. The thermostatic water heater can automatically adjust the water temperature in different seasons and different water needs to ensure that the water temperature is constant and the comfort is very high.
The types of thermostatic water heaters include gas proportional valves, water-gas dual adjustments, intelligent water servo technology, and non-cold induction and anti-disturbance thermostatic water heaters. Among them, the water servo technology constant temperature water heater has become the mainstream in the field of high-end gas water heaters with its excellent temperature control accuracy and excellent cost performance.
2. Do not buy a water heater with a fan on it
There are two types of gas water heaters: upper fan and lower fan, relatively speaking, the gas water heater of the lower fan has higher thermal efficiency and safety due to the positive pressure combustion method, sufficient oxygen supply and more adequate combustion. In addition, the lower fan is not susceptible to high-temperature baking because it is far away from high-temperature areas, so it has a relatively long service life.
In the process of operation, the noise of the top-mounted fan water heater is large, and it is precisely because of the above small shortcomings that it is recommended that you try not to buy the top-mounted fan water heater.
3. Do not buy water heaters without low water pressure starting function
The low water pressure start function means that the water heater can still start normally and provide hot water when the water pressure is low. In some old residential areas or high floors, the water pressure is often low, and if the water heater does not have a low water pressure start function, it is easy to fail to start or the hot water supply is insufficient.
Therefore, when purchasing a water heater, if it is a high-rise user, it needs to pay special attention to whether it has a low water pressure start function to ensure that it can be used normally under various water pressure conditions. It is best to choose a water heater that supports both water pressure and air pressure to start at low pressure to avoid the problem of difficult water heater start when water pressure or air pressure is insufficient.
Fourth, do not buy stainless steel tank water heaters
In order to create a "different" feeling, some brands of water heaters use stainless steel water tanks, although they look more beautiful in appearance, but in fact, their thermal insulation performance is poor, which can easily lead to heat loss and low heating efficiency.
In contrast, traditional pure copper tank water heaters have better insulation performance and durability. At present, the best water tanks with oxygen-free copper or phosphorus deoxidized copper have excellent thermal conductivity and can transfer heat quickly and evenly, thereby significantly improving the heating efficiency of hot water and prolonging the service life.
5. Don't buy miscellaneous water heaters
Miscellaneous water heaters often attract consumers with low-price gimmicks, but "you get what you pay for", and this kind of miscellaneous water heaters often have problems such as unstable quality and poor after-sales service. In the event of a malfunction or problem, the water heater cannot be used, not to mention, it may also endanger the safety of the user.
So which brand of gas water heater is better? Taking the most commonly used 16L gas water heater for two-bathroom units as an example, from the perspective of performance, price and user evaluation, it is most recommended to buy these three models in 2024: good quality and safety, high cost performance, and recognized reputation!
1、万和燃气热水器 V5D
Wanhe is a leading brand in the domestic gas water heater industry, and its water heater products are of good and safe quality, cost-effective, even in the high-end market, compared with foreign brands. Its V5D series water heaters stand out in the market with excellent cost performance and excellent performance. This water heater integrates water servo and energy-saving gas servo constant temperature technology, plus closed and stable combustion chamber 2.0 technology, which completely solves the problem of unstable water temperature.
In order to meet the diversity of users' hot water needs in different seasons, Wanhe V5D water heater introduces 5-stage precision control micro-fire technology, which can intelligently adjust the fire power to ensure that the water temperature is always comfortable and pleasant. It is worth mentioning that as a 10,000 and 1,000 yuan level constant temperature water heater, the V5D is the only model that adopts the design of the lower fan.
In terms of materials and technical details, Wanhe V5D also strives for excellence. It is made of 99.9% oxygen-free copper and an antibacterial water tank to ensure the purity and hygiene of the water quality. At the same time, its four-level frost resistance and 10-level windproof technology ensure the stable operation of the water heater in various extreme environments. Such a water heater that combines many advantages, but the price is very close to the people, less than 2000 yuan can be owned, for the pursuit of cost-effective consumers, is undoubtedly a wise choice.
2. Rinnai gas water heater GD31
In the high-end gas water heater market, Japanese brands have excellent performance around the world, and Rinnai is the Japan brand water heater with the highest sales in China. There are many models of Rinnai gas water heaters, among them, the GD31 series is loved by home users because of its excellent performance and exquisite appearance, and is known as the "small waist".
GD31 water heater is equipped with Japan original 28nm CPU, combined with precise gas proportional valve control and advanced bypass mixing device, through the "water and gas dual adjustment" constant temperature technology, to achieve accurate control of water temperature, but also reduce the cost of use. Its 7-row M-type oxygen-free copper heat exchanger combined with seamless combustion switching technology provides users with a more comfortable and stable hot water experience.
It is worth mentioning that the GD31 water heater also adopts a unique "micro-fire precision control technology", which effectively solves the problem of excessive water temperature in summer, so that users can adjust the water temperature according to their needs. At the same time, in order to ensure the safety of users, this water heater is also equipped with multiple safety functions, including 75 self-test procedures, 48°C safety lock, CO excess monitoring and 60-minute automatic shutdown protection, etc., providing users with a full range of protection when using hot water.
3. Energy rate gas water heater EA3
Nengsu is also an outstanding representative brand of Japanese water heaters, and it is also the inventor of the world's first constant temperature gas water heater. Its products are affordable and have excellent performance, and have a good reputation in the domestic market, especially the best-selling E4 series upgraded EA3 water heater, which continues to be warmly sought after in the market.
The EA3 water heater adopts the water volume servo constant temperature technology, combined with the precise control of nano-level CPU, to achieve the ultimate control of water temperature. Whether it is a single-point water supply or a multi-point water supply, when the water volume changes, the technology can respond quickly, intelligently adjust the water intake and gas ratio, ensure that the water temperature is constant, and bring the ultimate comfort to users.
In addition, the EA3 water heater also adopts the design of the lower fan, with a one-key temperature adjustment function, providing users with a variety of preset mode options, such as washing vegetables, bathing, dishwashing, etc., while supporting 18 levels of temperature adjustment and 32°C micro-flame combustion, to meet the personalized needs of different users for hot water.
Summary and Recommendations
How to choose a gas water heater? The above is the "5 don't buy" principle of gas water heater summarized for you through the experience of buying water heaters many times. Only by choosing a suitable water heater can we enjoy a comfortable life while ensuring the safety of use.