Which is more energy efficient, gas water heater or air energy water heater?

The efficiency of gas water heaters is usually about 90% (condensing type can even exceed 100%), and the efficiency of electric water heaters is generally above 90% (but considering the primary energy power generation efficiency is 45%, the primary energy efficiency of electric water heaters is about 40%), the air energy water heater is an air source heat pump, and the heating coefficient is generally about 5 (which can be approximated as the efficiency is 500%), and it is estimated that it can reach 3 under low temperature conditions in winter. The overall efficiency is about 5% based on a heating coefficient of 220%.

To sum up, if you have to compare who is more energy-saving, air energy water heater, gas water heater, electric water heater, the former is about 2 times that of the latter in each step.

From an economic point of view.

Civil gas ** in the yuan or so (different places, the difference from to the to, here take the common in Jiangsu, Zhejiang and Shanghai), the electricity price takes the average price of the ladder (considering that everyone uses more water heaters at about 6 o'clock to 10 o'clock in the evening, in fact, the electricity price will be a little higher) about yuan, a cubic meter of natural gas generated by the heat is about 10 kilowatt-hours of electricity.

Then the result is that if a certain amount of hot water is consumed by gas water heaters, air energy water heaters will be consumed (heating coefficient 5), and electric water heaters will be consumed.

Comparison of gas water heater and air energy water heater.

Gas water heaters are safer and more practical.

Advantages of gas water heater:

Fast heating, large water output, stable temperature, less scale, and small footprint, not controlled by water volume.

Gas Water Heater Disadvantages::

1. It is relatively troublesome to install and limited by air source, etc., and has high safety requirements.

2.If you turn off the water and use shower gel when taking a bath, the water will be very hot when you boil the water again (except for those who never turn off the water in the bath). In addition, the service life of gas water heaters is generally 6 years, which is very short compared to electric water heaters.

3.The shape of the burner, the size of the nozzle, and the cross-sectional area of the gas channel are different for different gases. (After the transformation, the use effect is the same, for example, the water heater needs to be modified after the replacement of natural gas).

4.The starting water pressure is high, and some users who live in high-rise buildings cannot start without installing a booster pump; (Users with insufficient water pressure can choose a low-pressure started gas water heater when purchasing).

Advantages of electric water heater: it is not affected by the weather, it can be installed and used directly, and a large amount of hot water can be provided after a long time of electricity. There is no exhaust gas when used, which is safe and environmentally friendly.

In addition, many of the products sold at this time have anti-electric shock devices. Electric water heaters are safer than gas water heaters. Longer life.

Disadvantages of electric water heaters: There is also limescale, which needs to be cleaned regularly. There is a post-maintenance consumption.

Now Beijing water heater maintenance reminds everyone that most of the water heaters now have magnesium rods to prevent corrosion. However, the magnesium rod should be replaced regularly for two years. In addition, there is a possibility of leakage in the water heater, so you must pay attention to installing a leakage protector.

It can be said that the symptoms are not cured, and there is still the possibility of electric shock, so pay more attention during use.

Which is safer, gas water heater or electric water heater, how should you choose, listen to Brother Bao.

Nowadays, electric water heaters and gas water heaters have protection devices.

In the event of an unexpected failure, the gas and electric water heater will automatically stop working within 10 seconds, and immediately cut off the power supply, and can not be automatically reopened, unless the above faults are artificially eliminated and then restarted before the water heater can work normally, therefore, its working performance is relatively safe and reliable.

Both gas and electric water heaters are very safe and can be used with peace of mind.

It needs to be understood that the cost of using a gas water heater is much lower than the cost of using an electric water heater. The reason is that the calorific value of a cubic meter of natural gas is ten times that of a kilowatt-hour of electricity. Taking into account the factors of efficiency and unit price, the difference between the cost of the two is at least three or four times, and you can calculate it according to the actual situation.

A water heater is a device that turns the temperature of cold water into hot water in a certain period of time through various physical principles. According to different principles, it can be divided into electric water heaters, gas water heaters, solar water heaters, magnetic energy water heaters, air energy water heaters, heating water heaters, etc.

Manufacture of air-conditioning part and manufacture of hot water section. In fact, these two parts are closely linked, inseparable, and must work at the same time. That is, to produce hot water and cool the kitchen at the same time. Or rather, while cooling the kitchen, it is also producing hot water.

From the perspective of energy saving, environmental protection and safety, air energy water heaters are better.

Because the gas water heater converts the internal energy of natural gas into heat energy, its utilization rate is less than 90%, and one cubic meter of natural gas is burned to produce one cubic meter of carbon dioxide, which has a great impact on the earth's greenhouse effect; The amount of hot water generated by one kilowatt-hour of air energy water heater is equivalent to the amount of hot water generated by four kilowatt-hours of electric water heater, which can save a lot of costs for users, and the water and electricity are completely separated, without any potential safety hazards, and it still relies on absorbing heat in the air to make hot water. So I think it's better to use an air energy water heater.

I think the air energy water heater is better! Because the gas water heater converts the internal energy of natural gas into heat energy, its utilization rate is less than 90%, and one cubic meter of natural gas is burned to produce one cubic meter of carbon dioxide, which has a great impact on the earth's greenhouse effect; The amount of hot water generated by one kilowatt-hour of electricity is equivalent to the amount of hot water generated by four kilowatt-hours of electric water heater, which can save a lot of costs for users, and the water and electricity are completely separated without any potential safety hazards.

In terms of equipment configuration and operating costs. South: Gas water heater 9 10L**2000 yuan, monthly gas bill 60 yuan, air energy 80 100L**4500 yuan, monthly electricity bill 30 yuan, North:

Gas water heater 12 16L**2800 yuan, monthly gas fee 100 yuan, air energy 150 200L**6500 yuan, monthly electricity bill 60 yuan. From the perspective of energy saving, environmental protection and safety, air energy water heaters are better. From a 10-year economic point of view, air energy expenditure is more.

Of course, air energy water heaters are good for two main reasons: safety and energy saving. The only drawbacks are: ** There are restrictions on where you can install (take up space).

Looking at the size of the water consumption and the temperature of the area, the gas water heater is used in the north, and the comprehensive average cost of the air energy water heater is one-third of the gas.

If the gas in your area is not very high**, gas is recommended.

In the first case, in the case of summer, the air energy water heater heats a ton of water from 15-55 degrees, according to the energy demand, the energy needs Q=cmt=, the energy efficiency ratio in summer is 4, and the electricity fee is yuan per degree, then the yuan is needed, in the second case, in the case of winter, the air energy water heater heats a ton of water from 5-55 degrees, and the tap water is 5 degrees, according to the energy demand, the energy is required q=cmt=, and the energy efficiency ratio in winter is taken as the electricity fee is yuan per degree, then the yuan is needed, and in the third case, In spring and autumn, in this range, it is about 8-9 yuan.

Of course, this calculation is different in different situations, and there is an error in the energy efficiency ratio, please forgive me for a little error.

It can be said that air energy water heaters are very cost-effective. I don't count the specific gas, the same reason, but the cost is definitely higher than air energy.

In addition, there are safety and pollution issues, which is why the state vigorously advocates air energy water heaters.

The above about air energy water heater cost Nanjing Warm House provides, I hope to help you.

Of course, it's the air. Air energy water heater (air source heat pump water heater) has the characteristics of high efficiency and energy saving, and its energy-saving effect is 4 times that of electric water heaters, 3 times that of gas water heaters, and about 2 times that of solar water heaters.

In terms of energy saving, the air energy is strong, and the heat generated is more than 4 times that of electricity consumption.

The same is true, but the cost is definitely higher than air energy. In addition, there are safety and pollution issues, and the electricity bill is yuan per kilowatt-hour. 5=5, according to the energy demand, the energy required q=cmt=yuan.

In the first case, in the case of winter, the air energy water heater heats a ton of water from 5-55 degrees, and takes tap water into 5 degrees;4*0。I don't count the specific gas, and the electricity bill is yuan per kilowatt-hour. Of course, this calculation is different from case to case, and there is an error in the energy efficiency ratio.

5*0, then need, according to the energy demand, the energy required Q=cmt=, take the winter energy efficiency ratio, take the summer energy efficiency ratio as 4;2。It can be said that the air energy water heater is very cost-effective, so you need it, please understand that there is a bit of an error, which is also the reason why the country vigorously advocates air energy water heaters. The above about the cost of air energy water heater Nanjing Warm House provides.

Yuan, the second case, spring and autumn in this range, about 8-9 yuan in the first case, in the summer case, the air can heat a ton of water from 15-55 degrees.

Air energy water heater is too electricity-intensive, 150L of air energy, two people take a bath in winter, an average of more than 5 degrees of electricity per day, the monthly electricity fee is at least 160-180 degrees, each degree, 80-90 yuan of electricity, gas water heater may not need so much money. Now in the blowing air energy water heater energy saving and saving money are the manufacturers or business publicity, according to the summer calculation of air energy water heater power consumption, I used it for two years, I deeply feel deceived, not as convenient as gas water heater to save money.

Upstairs, air energy water heater, my family uses Newentai's, boiling water for heating and cooling, a multi-purpose machine, definitely cooler than a gas water heater.

I also think the latter is better.

Whether it is from the consideration of energy saving or environmental protection, it is the ...... of the latter

1. Advantages and disadvantages: it is hot when it is opened, and the water is heated quickly, no matter what the weather is, there is no need to wait. Small in size, it is usually installed in the kitchen location.

2. Cost: The purchase and installation cost is low, and the price is cost-effective. It consumes less electricity and is suitable for working people or families with a large family population.

3. Safety: Due to the use of gas, there are hidden dangers of gas water heater poisoning and ** in safety performance, which need to be checked regularly.

4. Service life: The service life is short, basically it needs to be replaced every 8 years.

1. Advantages and disadvantages: it is ready for use and is not affected by the weather, but it needs to be heated in advance in the early stage of use. It occupies a large indoor area, especially for small apartments, which is even more inconvenient.

2. Cost: The product is relatively uneven and consumes a lot of electricity. It is easy to break down in the later stage, the maintenance cost is high, and the interior needs to be descaled once a year. It is suitable for a family of about 2 people.

3. Safety: There are hidden dangers such as leakage.

4. Service life: The service life of the electric water heater is 6-8 years.

Air energy water heaters

1. Advantages and disadvantages: powerful function, not only has the best hot water function, but also solves the problem of stuffy kitchen and has an air conditioning function. However, it is large and needs to be installed in a slightly spacious place such as a balcony.

2. Cost: air-based, electricity auxiliary; Extract a large amount of energy from the air with an energy efficiency ratio of up to 300% to 400%. Even in rainy weather, it does not absorb heat from the air, so it can be used for centralized water supply.

3. Safety: environmental protection and safety, the structure of water and electricity is completely separated, and no toxic gas will be released or burned during work. Not affected by natural disasters (lightning).

4. Service life: long service life, basically can be used for more than 15 years. During the period, there is no need for maintenance and maintenance, which is convenient and efficient.

After the analysis of the three types of water heaters, it is actually decided according to the population of the family. If there are only one or two people in the family, it is more cost-effective to choose an electric water heater; If you have a large family, it is best to choose air energy or gas water heaters; However, the power saving of air energy water heater is better, if the budget at home is in place, it is more practical to choose air energy!

Generally speaking, the cost ratio of air energy:combustion heat:electric heating is 1:2:4However, at present, air energy mostly uses electric heating auxiliary heating (manufacturers dare not advertise), the lower the temperature, the lower the efficiency, and air energy.

There are pros and cons to each one, gas can be used all the time, a bucket of electricity will be heated up until it is used up, and air energy has not been used, so I don't express my opinion.

Each has its own characteristics, gas burning, there will always be hot water, of course, the effect depends on the water heater bought.

It is convenient to install the electric water heater for electricity, and it will be burned when the temperature is down, and it has a certain volume, which is limited and large.

Air energy, large volume, high initial investment cost, power saving, market miscellaneous, rising star.

First of all, from the perspective of suitable households, the air energy water heater split machine is suitable for large households, because it has a large hot water storage tank, and small households may not have enough space to install. The smaller the size of the gas water heater, the impact is not great. However, gas water heaters are used a lot in cities, and gas pipelines are generally not popularized in rural areas, so they are not suitable for gas water heaters.

Split air energy water heater.

Secondly, from the perspective of operating costs, air energy water heaters are much lower than gas water heaters. After all, the air energy water heater only needs a small amount of electricity to drive, mainly absorbs the heat in the air to heat, and the operating cost is only a quarter of the electric water heater and one-third of the gas water heater.

Third, from the perspective of comfort, gas water heaters are prone to hot and cold, and the comfort effect is not ideal. The water temperature of the air energy water heater is constant, and it can be multi-point, multi-place, and at the same time, and only one device is needed to meet the hot water demand of the whole house.

Fourth, from the perspective of safety, the air energy water heater adopts the design of water and electricity separation, and the live components are not in direct contact with the water, and there is no harmful gas emission, which is very safe; Gas water heaters need to use natural gas, which is flammable and explosive, and there are certain safety hazards.

Fifth, from the point of view, a better gas water heater is about two or three thousand yuan, and air energy water heaters are generally more than five or six thousand yuan, which is much higher than that of gas water heaters.