With the arrival of winter, taking a hot bath to remove the chill from the body and eliminate the fatigue of the day is something that many people dream of in cold weather. Instantaneous water heaters, which are instantaneous and instantaneous, are very convenient to use and are ideal for use in cold weather. So, how to choose a suitable instantaneous water heater?
At present, there are two common instantaneous water heaters on the market: instantaneous electric water heaters and gas water heaters, among which instantaneous electric water heaters are usually above 6000w due to their relatively large power, and the requirements for circuits are relatively high, so instantaneous electric water heaters are used less in the family, and are usually used in some commercial places such as beauty salons and baths.
A commonly used gas water heater in our home is a gas water heater. Gas water heaters heat up quickly, are ready to use, don't have to wait, and don't need to store water, so they are relatively small in size and don't have to worry about limescale. At the same time, gas water heaters use gas, which is less expensive than electric water heaters.
How to choose a suitable instantaneous water heater?This is mainly for gas water heaters, and you need to pay attention to the following points when choosing.
1. Installation environment.
As mentioned earlier, instantaneous water heaters can be divided into electric water heaters and gas water heaters, among which the power of electric water heaters is relatively large, and the requirements for the line are relatively high, so if the instantaneous electric water heater is installed, it is necessary to have a separate line to avoid danger due to excessive power.
To install a gas water heater, you need to pay attention to the type of gas at home, the model of the gas meter, etc., and the installation location should be well ventilated, which can facilitate the discharge of exhaust gas, etc., usually the gas water heater cannot be installed in the bathroom, toilet, open kitchen and other spaces.
2. Water output.
This is mainly for gas water heaters, theoretically, the larger the water output, the more convenient it is to use, and the more comfortable it is. The water output of the gas water heater is obviously limited by the gas meter, and the selection can be combined with the model of the gas meter. Generally, families can choose a gas water heater of about 12-16L to meet their daily needs.
3. Type. Gas water heaters are mainly divided into three types: strong discharge type, balanced type and condensing type, of which strong discharge type is the most common one. This type of gas water heater is relatively cost-effective, and because it needs to use indoor air to participate in combustion, it must be installed in rooms such as balconies, kitchens, etc., which are relatively well ventilated.
The balanced gas water heater has a fully sealed structure, using sleeve smoke pipe, the oxidation required for combustion is extracted from the outside, and the exhaust gas is also directly discharged from the room, which does not require indoor air to participate in combustion, so it is highly safe, and it is also the only gas water heater that can be installed in a confined space. In the case of open kitchens, only balanced gas water heaters are allowed in many areas.
The condensing gas water heater makes full use of the heat of the exhaust gas, and is the gas water heater with the highest energy utilization rate and the most energy-saving.
Choosing a gas water heater can be based on the actual situation and budget to choose the right type.
4. Temperature control mode.
The temperature control methods of gas water heaters mainly include gas proportional valves, water-gas dual blending and water volume servers. The worst temperature control effect is the gas only proportional valve, and the best temperature control is the water volume servo.
When choosing a gas water heater, the first choice is the water volume server, especially for families with high floors, unstable water pressure, and many water points, it is not recommended to choose other temperature control methods.
Although the gas water heater with dual water and gas is relatively cost-effective, it is still very obvious due to the influence of water pressure and water points.
5. Anti-freezing. In northern areas, especially if you plan to install a gas water heater outdoors or in a location where the temperature is relatively low in winter, you can choose a gas water heater with antifreeze function.
There are two main types of gas water heaters: mechanical anti-freezing and heating anti-freezing, among which mechanical anti-freezing, an electric heating belt is installed on the outside of the heat exchanger, which is linked with the temperature control part, and once the temperature is reduced to below zero, the electric heating function is automatically started to prevent the gas water heater from being frozen.
Heating and antifreeze is to install a circulating water pump inside, so that the internal waterway of the water tank forms a closed circulating pipeline, when the temperature drops to below zero, the water heater starts combustion normally, so that the water circulates in the closed pipeline to prevent freezing.
The two anti-freezing methods have their own advantages, among which the electricity cost used in mechanical anti-freezing is relatively high, but mechanical anti-freezing does not use gas and does not produce exhaust gas. However, heating and antifreeze can better protect the machine and delay the life of the water heater.
6. a fan. Most of the domestic gas water heaters use the way of the upper fan, the structure of this method is relatively not very reasonable, and the life of the use is relatively short. Some imported brands also use the design of the lower fan, if the budget is relatively high, you can choose this type of product.
7. Functions. The functions of the gas water heater are relatively rich, such as mute, low-pressure start, wind resistance, magnetized water purification and other functions, which can be selected according to your own needs. For example, the residential floor is relatively high, coastal areas, etc., the wind is relatively strong, when choosing a gas water heater, you can choose a product with good wind resistance.
Usually we use water heaters, we need to drain the cold water in the water pipe first, and then we can use the hot water normally, especially when taking a bath in winter, it is always unbearable. Zero cold water is a function promoted by gas water heater manufacturers in recent years, which can make the home open the faucet at any time to have hot water, and the comfort is very high.
However, the installation of zero cold water requires laying the return pipe in advance to make the circulation larger, and when the circulation is turned on at the same time, the gas and electricity costs are relatively high. Therefore, zero cold water is more suitable for families with large rooms and long pipelines, such as large flats and villas.
If the return pipe is not laid in advance, the pipeline is not long, and the usual work and rest are irregular, it is generally not recommended to choose zero cold water, after all, the cost of use is relatively high and it is not very useful.
8. Branding. Among the domestic gas water heater brands, there are mainly Haier, Midea, Vantage, Wanhe, Wanjiale and other brands. Domestic gas water heaters have a rich variety, and they are relatively more close to the people, and the effect of use is also good.
Among them, Haier's gas water heaters are good in terms of sales and reputation. Haier's closed and stable combustion chamber has good wind resistance, can resist 10 winds, and has more than 1,300 gears at the same time, infinitely adjustable water intake, 15 fire rows, 5 sections, 32 kinds of fire switching combinations, etc., with high comfort of use.
The functions of Midea's gas water heater are equally powerful, and its self-developed core components and technologies such as intelligent control booster water servo, DC inverter fan, inverter gas servo, DC booster pump, closed and stable combustion cabin, energy-saving chips and algorithms have good performance.
Among the imported brands, Nengsu and Rinnai have always occupied the mid-to-high-end market. Among them, the gas water heater with energy rate has good constant temperature performance, high comfort of use, intelligent switching of firepower, energy saving and worry-free.
The gas water heater micro-flame technology, constant temperature technology, bypass mixing technology, CO over-standard prevention device, Eco energy-saving mode, etc., are all very good.
Finally, in addition to paying attention to the above points, you also need to pay attention to the safety aspects of the water heater, such as whether the functions such as CO early warning and leakage prevention are perfect, and choose the right product according to your needs and budget.
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