Gas water heater is a must-select equipment for many friends when decorating. There are many brands and models of gas water heaters on the market. In addition, with various functions and business promotions, it is really easy for ordinary consumers to get into trouble if they don’t use some functions!
In this article, I will sort out my selection experience. has summarized seven methods to share with everyone, to provide you with a reference when purchasing a gas water heater:
Take a look at the gas meter: choose based on the gas supply
When buying gas The first step to install a water heater is to check the gas meter at home: Check whether the gas supply volume of the gas meter is G1.6 or G2.5. The upper gas supply limit of the
G1.6 gas meter is only 2.5 cubic meters. It can support a 13-liter gas water heater at most and cannot carry a 16-liter gas water heater. If you buy a 16-liter water heater, the gas company will not provide gas to your home at all. I have to spend more money to exchange for a G2.5 watch, which is quite troublesome!
Second look at the capacity: choose
based on the actual usage. The common water heater capacities on the market are 13 liters and 16 liters. For an ordinary family of three and who doesn’t particularly like taking baths, 13 liters is enough.
If your home has two bathrooms, usually there are more than two water outlets, and water is often used at the same time, then you have to buy a 16-liter one.
For a large apartment such as a duplex villa, you can buy two. You must know that more water supply points are more suitable than larger capacities. There is no need to buy
if it exceeds the standard. If you don’t use it, you will spend more money. In addition, it also depends on the conditions of the community. If it is an old community, there may be a risk of low water pressure. It is necessary to choose a water heater with a low-pressure start function.
Three things to look at when installing a fan: location and performance are critical.
First, the fan should be positioned at the bottom. Usually, if the fan is placed at the top, the combustion chamber will be designed at the bottom. This is equivalent to putting the fan on the fire, which will reduce the service life. Moreover, the thermal efficiency of the fan is lower when the fan is installed. If the combustion is sufficient, it is easy for carbon monoxide to leak.
The second is to choose one with high wind resistance design. Pay special attention to see if it is a variable frequency fan, especially for high-rise residents along the coast. They often face typhoons tornadoes in summer. The water heater needs to continuously discharge exhaust gas when operating, and windy weather will hinder its normal exhaust. , leading to abnormal combustion conditions and gas fires. Therefore, for friends in similar areas, it is safe to choose a gas water heater with high wind resistance.
Fourth Look at Temperature Control: The constant temperature function is very necessary
If you don’t want to get hot and cold when taking a bath, then you should choose a hot air water heater with a constant temperature. There are three constant temperature methods for gas water heaters on the market: gas proportional valve constant temperature, water vapor double-adjustable constant temperature, and water volume server constant temperature . Among the three modes,
, the water volume server constant temperature is the most useful . The temperature difference will be controlled to about 0.1 degrees, but if you are not particularly sensitive to temperature differences, it is not necessary, because the price of this mode is compared to the other two. It's several hundred more expensive. The temperature difference between the other two types can basically be controlled at about 1 to 2 degrees, and the price is much cheaper and more affordable.
5 Check whether there is zero cold water: The zero cold water function is very useful.
The topic of whether to buy a water heater with zero cold water function has always been controversial. In fact, once it is installed, everyone will not know how effective the zero cold water function is. Fragrant!
The point that many people hesitate about is usually the zero cold water waste gas. The reason why it is said to be zero cold water waste gas is because it has been a problem of circulating heating, and zero water needs to add return water pipes and circulation pumps, which are all items that cost extra money, because It is circulating heating, and the subsequent gas bill is about 100 yuan more expensive than others.
But I suggest that everyone must buy a zero-cold water ! My 120-square-meter junior bedroom used to have to be left on for at least a minute before hot water could come out. Especially in winter, when I got up to wash up in the morning, the cold water was unbearable. It was a waste of water while waiting for hot water to come, and the water temperature was unstable... Later, I changed it. After buying a water heater with zero cold water function, you can enjoy the 24-hour hot water supply all day long, and no matter where you turn on the faucet, hot water will come out in seconds. What a great experience!
Six views on silent sound: Only those below 40 decibels are quiet.
Gas water heaters must be silent. Otherwise, as long as one person gets up to wash up in the morning, the whole family will not be able to sleep when the water heater is turned on. The noise level in our living environment is 30 to 40 decibels, which is relatively comfortable. If the noise level exceeds 50 decibels, it will affect sleep and rest. Therefore, if the gas water heater whose noise exceeds 40 decibels, do not buy the .
At present, good gas water heaters use multiple sound insulation layers to achieve silent treatment. In actual life, such operating sound is difficult to be noticed. Only such silence can meet the requirements.
Seven Views Installation: A good purchase requires a good installation.
1. Bury 50 pipes in advance, and the pipes are not exposed.
Remember to bury 50 pipes between hot and cold water. Hide the gas pipes later, otherwise the gas pipes will be exposed. It's really ugly outside.
2. Do not use constant temperature shower head
constant temperature shower head generally requires the inlet water temperature to be controlled at 55~65 degrees to achieve the ideal water temperature adjustment effect. Thermostatic showerheads are generally used with electric water heaters. It is actually difficult to control the temperature when used with ordinary gas water heaters. If you add an constant temperature water heater , it is purely redundant.
3. Don’t install it in a cabinet.
I saw a friend’s gas water heater installed in a cabinet because it didn’t look good when it was exposed. This method is not advisable! Because both wall-type and condensing water heaters consume indoor oxygen when heating, installing them in a cabinet will cause insufficient oxygen supply, affect the heating effect, and may also cause carbon monoxide leakage due to insufficient combustion! Unless a balanced type is used, the air intake and smoke exhaust of the chimney are done outdoors and do not consume indoor oxygen.
4. It is recommended that you prepare the installation materials yourself.
It is strongly recommended that you prepare the materials for installing the gas water heater in advance. Otherwise, the materials fee for the master's visit can range from a few hundred to a thousand, and many people are in trouble here! The basic installation materials include angle valve , bellows and gas explosion-proof pipe. If the smoke exhaust outlet is far away, you need to buy an extension flue and an elbow. Remember to measure the length in advance, so that you will not be fooled when the master comes to install it.
Ok, these are the seven suggestions I want to share with you on selecting and installing a gas water heater. Do you have any other questions? Let’s continue the exchange in the discussion forum!
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