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Heating: It is easy and quick to use, but the installation requirements are extremely high, and it cannot be installed indoors (carbon monoxide will be produced), and if it is installed outdoors, it is long and gas and water-consuming, and it is not environmentally friendly. The technology is mature and the failure rate is low.
There are two kinds of electric heating: 1. Instant heating: due to the large power (generally 7000w-8000w), it is convenient and fast to use; However, it is necessary to take a special line, and the water output is very small, and the instant heat of 7000W is equivalent to the water output of the heating heat.
In common terms, it is smaller than the amount of pee, and it is basically unusable in winter. The technology is immature and the failure rate is high.
2. Water storage type: the water output is large, and the installation requirements are not high. However, it is large in size and needs to be preheated, and it cannot be bathed continuously due to capacity limitations.
The technology is mature and the failure rate is low. There are multiple protections in terms of leakage, leakage protection, grounding protection, anti-electric wall, and the probability of internal leakage is very low (lower than that of instant heat), the key is to ensure that the ground wire of the original circuit is normal.
Air source: the technology is not mature, the larger the temperature difference, the worse the effect, and the failure rate is high. The purchase cost is high, the life is short, and it is not cost-effective!
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There will be scale problems in electric water heaters, and there will be leakage! Gas water heaters will also have problems such as scale!
It is best to choose an air energy household water heater to effectively avoid the above problems and save energy by 400%!
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If the conditions are sufficient, install a gas water heater.
If you don't have gas to install electricity, this is your best bet.
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Gas water heaters.
Advantages: The gas water heater is slightly lower than the electric water heater, the heating speed is fast and the water temperature is relatively stable, its volume is generally small, and the number of hot water is not limited, it belongs to the instant heating type, does not need to be preheated for a long time, and can be used at any time, so it is more suitable for families with large populations.
Disadvantages: Gas water heaters need to be installed in separate rooms, and the installation steps are more cumbersome than electric water heaters. Since there is a gas supply, it means that there may be gas leaks, which can produce harmful gases that endanger human health.
In addition, if the kitchen and bathroom are far away at home, the use of gas water heaters can easily lead to slow water supply. Moreover, gas water heaters have high requirements for water pressure, so it is not recommended to use gas water heaters for high-rises.
Electric water heater. Advantages: Electric water heaters are cleaner and safer than gas water heaters, with fewer installation restrictions, and can be installed wherever there is electricity. Since there is no need for separate room installation, temperature adjustment is also more convenient than gas water heaters.
Disadvantages: Because the working principle of the electric water heater is to heat the water in the water storage tank through the heating rod, it consumes more electricity, and the existence of the water storage tank causes the electric water heater to usually be larger in size and occupy more area, and the scale needs to be cleaned regularly for long-term use, otherwise it is easy to breed bacteria. In addition, preheating is required before use, and the amount of water is limited.
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In today's society, for every family, in fact, every household has a water heater, which can supply water to us for bathing or washing dishes, etc., in short, it is very convenient. But there are two types of water heaters, which are electric water heaters and gas water heaters, so what are their advantages and disadvantages? Let's briefly analyze it.
1. Electric water heater
Advantages of electric water heater:
1. Compared with other types of water heaters, electric water heaters are more convenient to install.
2. The installation location is not limited, unlike the gas water heater that must be installed in the ventilated place, the solar water heater must be installed on the roof and outside the window.
3. Instantaneous electric water heater can be heated instantly.
4. There is no risk of poisoning caused by gas leakage in electric water heaters.
5. The electric water heater has the advantages of long life, high efficiency and energy saving, safety and environmental protection, and can also be hidden in the wall cabinet and balcony, without being exposed or occupying an area.
Electric Water Heater Cons:
1. Storage electric water heaters occupy a lot of space, and now most of them are recommended to use hidden design.
2. The storage type electric water heater has an upper capacity limit, and the hot water needs to be reheated when the hot water is used up.
3. The cost of electric water heaters is relatively higher than that of other types of water heaters.
4. Although there is no risk of gas leakage, there is a risk of electricity leakage.
2. Water heater
Advantages of gas water heaters:
1. Compared with electric water heaters, gas water heaters are small in size.
2. The rate of heating the same volume of water is faster than that of an electric water heater.
3. Gas water heaters are more energy-saving.
Disadvantages of gas water heaters:
1. Because of the combustion of natural gas, the installation location can only be in the kitchen.
2. A long-aged gas water heater will produce carbon monoxide if it is not burned completely. It is easy to cause harm to the human body.
3. The service life is short, generally 6-8 years.
4. The purchase ** is higher, generally more than 5,000 yuan.
In general, there are two common water heaters on the market, each with its own advantages, and also its own disadvantages.
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Now with the gradual development of science and technology, there are different types of water heaters such as electric water heaters and gas water heaters, of course, we know that electric water heaters and gas water heaters are the types of water heaters that everyone pays more attention to. And we know that electric water heaters and gas water heaters have different advantages and disadvantages, so which water heater should be chosen when making a purchase? Let's take a look at electric water heaters and gas water heaters, what is the difference between them?
Which product should I choose?
Comparative analysis of electric water heaters and gas water heaters.
Thermal stability: The gas water heater is equipped with a special temperature control device, in addition to rapid heating, once the temperature is set, it can continuously produce hot water at a constant temperature. Although the instantaneous electric water heater in the electric water heater can also achieve continuous hot water at a constant temperature, the storage electric water heater has a preheating process, and it takes half an hour to turn on the electricity to produce hot water, and the water temperature needs to be adjusted when in use.
Energy consumption ratio and **: gas water heaters are generally higher than electric water heaters, and the installation and maintenance are more complicated, because gas is used as the gas source, so the cost of use will be relatively high, and the gas ** continues to rise. Electric water heaters are cheap, easy to install, easy to maintain in the later stage, and the electricity bill is not as high as the gas cost.
3.Hot Water Yield: Gas water heaters are powerful enough to heat up quickly and produce a continuous supply of hot water per minute of rated volume.
The power of the thermoelectric water heater is not as large as the water heater, and the heating speed is also slow, although the storage electric water heater has a larger inner tank, but it takes half an hour to heat each tank of water, of course, the instantaneous electric water heater can be opened and heated, and the heat production rate is relatively high.
4.Environmental protection and safety: The use of gas in gas water heaters will eliminate carbon monoxide and other gases that pollute the air, and it will cause poisoning when discharged indoors, while electric water heaters use electricity and do not emit polluting gases.
In terms of safety, both have corresponding safety issues, electric water heaters have hidden dangers such as leakage, and gas has hidden dangers such as fire.
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From the perspective of green environmental protection and energy saving, electric water heaters are good. Because gas is not a renewable energy source.
From the perspective of use economy, it is necessary to combine the local electricity unit price and gas unit price to calculate which is more economical.
From the perspective of installation and use, it should be determined according to the structure and layout of the house at home and the habits of the family to use hot water.
For example, there is a bathroom at home, and the bathroom is separated from the kitchen or balcony by a wall, and the frequency of bathing, washing vegetables, and brushing dishes with hot water is high, and it is required to be used immediately, so you can consider installing a gas water heater, and the water heater is installed on the outer wall of the open balcony or the kitchen wall, and the hot water pipe is led to the bathroom for bathing; It can meet the requirements of use, and is safe and reliable.
If you have two bathrooms in your home, you can install a gas water heater in the one next to the kitchen and a storage electric water heater in the other.
If there is not enough installation space in the home, you can consider replacing the storage electric water heater with an instantaneous electric water heater; However, it is necessary to lay 6 square meters or more of single-core copper wire to supply power to the instantaneous water heater.
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The landlord asked, I mainly understand it as saving money.
Recently, in-depth research in this area is underway. I just have time today, so I checked a little more information and simply gave you a clear calculation.
Let's calculate the total energy bought for 100 yuan first
LPG: 15*
Explanation: 1 kilogram of liquefied gas can be converted into about cubic meters (standard) of gaseous petroleum gas; Each cubic meter of gaseous LPG is capable of releasing megajoules of heat energy when burned. )
Electricity: 100kw·h 100*
In other words, the energy of the liquefied gas you buy for 100 yuan is equivalent to megajoules, and the electricity energy of the same ** is 360 megajoules.
The minimum thermal efficiency of a gas water heater is equivalent to 84% (GB 20665-2006 "Energy Efficiency Limits and Energy Efficiency Classes for Household Gas Rapid Water Heaters and Gas Heating Water Heaters").
The minimum thermal efficiency of an electric water heater is equivalent to 50% (GB 21519-2008 "Energy Efficiency Limits and Energy Efficiency Classes for Storage Electric Water Heaters").
In this way, according to the minimum energy efficiency, 100 yuan is used for electric water heaters, and the effective heat energy is at least 360mj*50% 180mj
For gas water heaters, the effective heat energy is the lowest.
Based on this calculation, excluding the water heater ** factor, the use cost of an electric water heater is twice that of a gas water heater.
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Personally, I think the gas is good! The main advantage is that the hot water is fast and affordable! But be sure to pay attention to safety, but be sure to ensure good ventilation during installation (even if it is a strong exhaust), do not install in a closed environment!
Electric water heaters are mainly divided into water storage and fast heating, the heat of water storage is relatively slow, and it must be heated in advance, and the power of fast heating is too large, and it consumes more electricity! However, it is also necessary to pay attention to the safe grounding, and there must be a leakage protector at the front end. However, I use the stored water, and it is 100% safe to turn off the power after heating, and then wash it.
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Of course, gas should be saved, because the calorific value of gas is higher, and the calorific value of electric heating is lower. However, it is convenient to use an electric water heater, so you don't need to buy gas, so it is safer to use.
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It is cost-effective to use an electric water heater alone, because the energy utilization rate of gas water heaters is only 20%, while electric water heaters can reach more than 90%. But also consider the cost of the equipment, and the age of the equipment.
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Use a gas water heater.
Pay attention to ventilation.
Turn off the gas when not in use.
Overall. The electric ones are much safer, and I don't pay too much attention to the use of them.
Most of the domestic accidents are still gas.
Electricity is almost rare.
Currently instant hot water heaters.
It's safe and easy to use.
I'm using the Piano brand.
It feels pretty good.
You can get to know the electric water heater in a bucket.
Bring the water to a boil. Unplug the electricity.
It can also be.
Be powered on all the time.
Compare water and electricity costs.
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Electricity, convenient and fast. Anyway, the gas danger factor of the two is a little bigger.
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If you really calculate, it is more economical to use a gas water heater.
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This varies depending on personal preference and family circumstances
1. Safety: Electric water heaters have electric shock problems, and gas water heaters have gas poisoning problems. For electric water heaters, if there is a definite and effective ground wire at home, plus an anti-leakage switch, the electric shock problem of the electric water heater can basically be eliminated.
For gas water heaters, one is that the location of the water heater is ventilated, the smoke exhaust is good, and the oxygen supply is sufficient, so there will be no carbon monoxide poisoning or suffocation risk, and the other is the gas pipeline, check whether there is any gas leakage every other time, do these well, and the gas water heater is basically not dangerous.
2. Cost: The purchase cost is basically the same as the grade, so I won't say much about this. The cost of use, if the home has been connected to the gas pipe, generally speaking, the cost of using a gas water heater will be relatively cheaper than that of an electric water heater.
3. Installation: The electric water heater can be installed directly in the bathroom, which is convenient, but it takes up a little more space than the gas water heater. For the sake of safety, gas water heaters are generally not installed in the bathroom, and it is slightly troublesome to adjust the temperature, but if it is installed with a mixing valve, everyone is almost the same, in fact, if the bathroom is against the exterior wall, and there are permanent vents, do not worry about lack of oxygen, it can be installed in the bathroom, of course, this must first have a gas pipe, and then a professional has assessed the safety.
4. Use: If the electric water heater is not plugged in all the time, it needs a certain amount of time to heat up before use, which is not as convenient as the ready-to-use gas water heater at this point, and the electric water heater has a limited capacity, so it is better to wash the gas water heater for as long as you want, and you don't have to worry about the hot water is not enough.
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The advantages of gas water heaters: it can ensure that the hot water lasts, and you are not afraid of taking a bath, as long as you are happy, you can wash in the bathroom, and you are not afraid of no hot water. Gas bills are also relatively low.
The disadvantage of gas water heater is: the installation location is particular, generally in the balcony or kitchen, if your home water heater is far away from the bathroom, then you need to wait and so on when you just turn on the water heater, and you need to put away the cold water for a long time in vain.
The advantages of electric water heaters are: stable and comfortable pressure and outlet temperature, good shower experience, and no special requirements for water pressure and installation location.
The disadvantage of electric water heaters is: the general household electric water heater can only be washed for 15-30 minutes, and then you have to wait for the water tank to heat up. If you're going to take a bath, you can't wash as long as you want, and you can't wash as long as you want.
Question: When you choose a water heater, preferably electricity? Or is it angry?
I think electric water heaters are better, now the gas is getting higher and higher, the cost of using gas water heaters is relatively high, and the energy consumption cost of electric water heaters is relatively low, and the cost will be more cost-effective.
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