Shortly after the Spring Festival, the festive flavor has not yet been cleared up. The Lantern Festival is coming again, and every holiday season, the family's water consumption will be greater than usual. The water heater also faces the most severe test:
Hands are washed out, the tap did not come out of hot water; at home, multiple people at the same time water, water is too small, fine like chopsticks; hot water supply sometimes intermittent ...
In fact, these problems are closely related to the gas water heater liters, so when we buy not only pay attention to the safety of water heaters, thermostat function, but also pay attention to the rise of gas water heaters, then how to choose the gas water heater in line with their family conditions?
First, popular science: water heater "liters" is what?
In the purchase of gas water heaters, found a variety of liters, such as: 11L, 13L, 16L, etc., but do not know what it meant, how to choose becomes very troublesome.
In fact, liters can be simply understood as: "every minute can provide hot water '.
Since 'gas water heater' generates heat through combustion of the gas, it heats the heat exchanger and heats the water as it passes through the copper tube in the heat exchanger.
Therefore, gas water heater 'l' refers to its maximum hot water flow per minute, gas water heater liters refers to the amount of hot water produced in a minute when the water temperature is raised by 25 ° C. (The formula is: ( △ T25 ℃ × X liters) ÷ Y) If the water temperature is 15 ℃, gas water heater can produce 40 ℃ per minute of hot water, that is, 13L gas water heater can produce 13L hot water per minute, And so on, the greater the amount of household water used, the larger the number of liters to choose.
Second, what are the main factors affecting the ascending number?
1, shower size
When bathing, we often open the shower to the maximum, but the amount of water but can not keep up, the water flow is small, people feel very uncomfortable.
Because different showers have different amounts of water.The shower is generally divided into hand-held and top-spray, the flow of the two are also very different.Handheld flow is generally 6-10L / min, top spray is generally 11 -15L / min. If you choose a shower over the water, water heaters can not keep up the number of liters, it will lead to small water flow, wash very uncomfortable.
For example, the home is installed 11L water heater, you want a water shower feel comfortable, you need the flow rate of 8L / min shower, while the kitchen faucet home traffic flow size is generally 5 ~ 7L / min, if the bathroom Shower and kitchen faucet at the same time the water, then the number of liters of water heater is not enough.
Therefore, in actual use, choose a number of liters larger than the theoretical gas water heater, a sense of experience will be better! And the market of gas water heater brands will have a large number of series, such as Fang too magnetized thermostat series, equipped with 16L, 20L The large number of water heaters, the choice is more diverse.
2, multi-channel water
Some consumers find that when the kitchen in the home is heated with hot water, the flow of water is very small, especially when the two bathrooms are taking a shower at the same time.
This is actually because the demand for water is greater than that of gas water heaters to provide hot water.
To a shower water supply, for example, the minimum shower water is 6L / min, according to the winter bath, the water temperature by 50 ℃, tap water temperature by 5 ℃ (in the northern region as an example), there are: 6 × (50-5) /25=10.8L, so choose 12L gas water heater is more appropriate.But if there are two bathrooms at home, to ensure that the two shower at the same time, or if you want to use the bathtub, 12L is not too Enough, then there will be a small flow of water and the situation is not hot enough.
There are many reasons that affect the choice of household gas water heaters, the most important of which is the number of hot water outlets that are used simultaneously. It should be noted that if your home uses a ceiling shower, the number of liters needed will be more High, probably the corresponding relationship can refer to the figure below:
Generally three to five families choose the 16L gas water heater is the most suitable, the holiday season, even if friends and relatives visit, hot water can keep pace with. And, 16L gas water heater is now the flagship product of many brands on the market, such as Square too constant temperature water heater series, etc., designed specifically for the modern standard home design, ideal for everyday use of ordinary families.
3, temperature difference
Another factor affecting the ascending number is the temperature difference, and the temperature difference between the summer and winter is great, especially in the north. Consumers in the north will find no problem with hot water at home in the summer, but when it comes to winter hot water Always enough, how is it?
If you want to enjoy the same water temperature, the outside water temperature is lower, the gas water heater liters need to be bigger.
For example, we show that the inlet temperature in summer is about 18 ℃, the required hot water temperature is 45 ℃, and the required number of aspirations is 6.48L using a 6L / min shower. In winter, the inlet temperature is about 5 ℃, The required hot water temperature is about 50 ℃, still use 6L / min shower, the required number of liters 10.8L.
Obviously, the same water heater, winter, the amount of hot water required is almost twice the summer.
In addition, the northern winter environment temperature is low, which also led to the inlet temperature is too low, as the southern winter inlet temperature will be about 10 ℃, while the northern winter inlet temperature is about 5 ℃ when the outside temperature and Water temperature is very low, the water heater will slow down, this will result in less than the amount of hot water, water is not hot enough, it will feel very uncomfortable to wash.
Faced with the problem of different water temperature in winter and summer, many brand water heaters on the market have introduced corresponding functions, such as Fang too 16L gas water heater equipped with temperature sensors, intelligent adjustment of winter and summer water temperature. It will be based on the inlet temperature and user settings Water temperature difference, to switch the number of fire platoons, which is the computer board to determine the required firepower to complete the task of boiling water summer high temperature, the water temperature is low, will use a small fire; winter inlet temperature Low, the water temperature is high, will use a large fire, so you bathe more comfortable.
The new year begins, choose a suitable water heater, comfortably take a bath, wash away the exhaustion of the previous year, with a new attitude to meet a better life!