A lot of household electricityWater heaterSince the day it was installed, the plugs have been placed on the plugs year after year, with virtually no power cuts. It is widely felt that hot water heaters are set at the right temperature, that electricity is always running and running, that they are most convenient, that they are repeatedly plugged and that frequent stoppages are more likely to damage machines。
But many people find two problems in long-term use: high monthly electricity bills, which are too low for daily water use, and higher than the neighbours' bills; and occasional sounds of plugs, water heaters, and fears that there will be anyClearIntangible。
Do the water heaters need a 24-hour power supply? When's the most appropriate power outage? Many people are confused, and today they can understand the principles, the calculation of electricity consumption, the security points, the use of the programme once and for all without expertise。
Precise one of the core error zones: the electro-heaters are active, not the constant high power heating. The temperature sensors and thermostats are present in the water-storage electro-heater, and when water is set at water temperature, the heating tube will only start when the water in the tank is below the specified temperature and the heating will automatically cease when the target temperature is reached。
The outer layer of the water tank is covered with a thick insulation layer that locks the heat of the hot water. But the insulation is not complete, and hot water slowly spreads out to the outside world, and the temperature drops slightly. As long as the plug remains electrified and the thermostat monitors low temperatures, the heating is activated again and the water temperature is restored. This process of repeated heating is the source of additional electricity consumption from 24-hour power in water heaters, known within the industry as “temperature depletion”。
We use the most common 60-litre water heater for domestic use, for example, and in normal conditions there are national standards for the 24-hour energy consumption factor inherent in qualified products. According to the national standard test conditions, 60 litres of energy-efficient water heaters with a 24-hour temperature-preservation rate of around 0. 6 degrees; secondary energy efficiency of about 0. 8 ~1 degrees; and old or aging water heaters with a 24-hour temperature-preservation rate of 1. 2 degrees or higher。
It is important to note here that this value is the amount of electricity consumed by pure heat protection, excluding the amount consumed by bath water heating. In other words, even if a family does not use water heaters for bathing all day long, as long as the plug is plugged in, the machine will continue to consume electricity to maintain water temperature as heat runs out。
A simple calculation. An energy-efficient 60-litre water heater at 0. 6 degrees a day and a residential electricity price of 0. 55 yuan/degree is estimated to cost more than 0. 6 x 30 x 0. 55 = 9. 9 yuan a month。
In the case of old water heaters, which consume 1. 2 degrees per day, the monthly heating charge is 1. 2 x 30 x 0. 55 = $19. 8。
Looks like a few bucks a month. But there are two easy points to ignore:
First, the test above is the laboratory temperature. If water heaters are installed with no-temperature balconyes and bathrooms, the temperature of the rooms is low in winter, the rate of heat dispersion will increase significantly, and heating will increase by 30 to 80 per cent, resulting in higher electricity costs。
Second, after more than five years of water heaters, the temperature-preservation material will shrink slowly, the temperature-preservation effect will change year by year, and the temperature-preservation consumption will increase year by year。
Many questions will be asked: will it cost more to heat each time before taking a bath, to heat once, and will it cost more than always
Take a visual example. Assuming that a bath requires heating 60 litres of water from constant temperature of 20°c to 55°c, a caloric equivalent of approximately 2. 4 degrees is required. If you take a bath once a day, there are two models:
Option 1: 24 hour power. In addition to 2. 4 degrees per day for bathing and heating, additional heating consumption of 0. 6 degrees per day was added, totalling 3 degrees per day。
Option 2: electricity is available one to two hours before bathing and after bathing, plugs are removed. Only 2. 4 degrees of heating water per day, without constant temperature preservation and loss, can be saved 0. 6 degrees per day。
The gap would be even greater if the bath took two days. Two days of washing and 24 hours of electricity, two days of constant temperature maintenance would have cost 1. 2 degrees of electricity, while the temporary mode of access would have been completely unheated。
Seeing here, a lot of people would just say that after the shower, they pull the plug. This conclusion, however, cannot be summed up. Not all households are fit to wash and lose electricity。
Let's take a look at the scene and let's see what you can do with your family。
First: low frequency of use, suitable for ad hoc transmission。
The family has a small population of one or two people, who do not take a bath every day, for example, every other day, or use hot water only at night. The recommended approach is to connect the power supply one to two hours in advance of the bath, heat the water up, and after the bath, turn off the water heater and remove the plug。
The advantage is clear: the cost of electricity is less than the cost of not having to sustain the heating and consumption of electricity; the machine is in a state of power outage at the time when it is not needed, reducing the risk of aging, leaking, plugging and overloading of electrons as a result of prolonged powering。
Another area of error needs to be corrected: frequent power outages do not significantly reduce the life of water heaters. The damage to water storage electro-heaters, mostly caused by internal choreography, the depletion of magnesium rods and the ageing of heating tubes, has had minimal effect on the machine's life. The real damage to the equipment is a permanent uninterrupted power supply, and the circuit elements remain on hold for years。
However, the programme has shortcomings and requires advance planning of water use. If you want hot water at any time, it's not an option。
The second is the use of hot water many times a day, suitable for long-term electrical power, but with detailed protection。
Three or more people in the family are required to use hot water sooner or later and to wash in the morning and bath at night. It's a bad experience to wait another 1 to 2 hours before use. In this case, it would be appropriate to maintain permanent power supply without each plug。
The main focus of this scenario is not power outage, but lower set temperatures. A lot of people are used to moving water heaters to the top 75 degrees c. The higher the water temperature set, the greater the temperature differentials inside and outside the water tank, the faster the heat is lost, and there will be a marked increase in heating consumption。
For daily use, water temperature is set to be sufficient between 45 and 55°c. The combination of cold water and cooling during bathing reduces the need for both use and heat dispersion and the consumption of electricity while reducing the generation of water. The higher the temperature of the water, the easier the ions in the water are to be diagnosed, attached to the heating tube and the inner larvae, the lower the heating efficiency and further increased electricity consumption, creating a vicious circle。
The next focus is on security, which is also one of the most important concerns. Many feel that long-term electricity access is not problematic as long as water heaters are protected against leakage. In fact, most of the hazards are not on the water heater mainframe, but on the associated outlets, circuits and accessories。
First, the risks of ageing of plugs and connections。
The power of the electric water heater is generally at 2000w ~3000w, which is a high power electrical device. Long-term powering, continued heat in the inner metal pieces of the plugs, with long periods of oxidation and failure. Fashioned positions can continue to heat up, and in serious cases they can burn, burn or even cause fire。
Many of the old house bathroom outlets have no access to the surface, which is cut off, and the surface is not connected. Even if the water heater carries a leaking electrical protection device, the protective effect of the leak will be significantly reduced after the surface line has failed。
Second, the internal element of the machine has a long-term electrical acceleration of ageing。
Temperators, heating tubes and circuit boards are constantly on an open-air basis, subject to chronic heat, slow ageing of the insulation layer and increased probability of electrical leakage. It is not said that there will be a failure, but that there will be a long-term failure, with a higher probability of failure than intermittent failure。
Thirdly, magnesium rod consumption and internal urchin decay。
Courage within water heaters relies on magnesium rods for the protection of the anode, slowing down the rusty internal urchin. The magnesium rods continue to be consumed in a state of electric power and water in water tanks. The consumption of magnesium rods will increase as a result of long-term electrical use. If the magnesium rods are depleted and not replaced in time, the internal urchin is prone to corrosive perforation and leaks。
Here's a reminder: unplugging does not mean neglecting maintenance. Even when electricity is out of order, the water tanks of the water heaters are still full of water, and magnesium rods are still slowly depleted and need to be periodically checked for replacement。
A point that many families will ignore: leak protection plugs in water heaters, which are regularly tested. The leak plug on the water heater's own belt has a test/test key and is recommended to be pressed every 1 to 2 months. When the pressure is pressed, the normal situation will jump off the switch and power will be cut off immediately, representing an effective leak protection. If no jump is pressed, which means that the leak has failed, the inspection must be stopped immediately and the use cannot continue。
There are two use taboos that must be remembered。
Paradox one: do not repeat the plugs frequently and repeatedly to save electricity. For example, the bath heats up for 10 minutes, turns off, and then plugs it in half an hour. Short periods of frequent outages and current shocks can damage circuit elements, which are not recommended. Either electricity is available for long periods of time, or one-time heating is done early, before electricity is cut off。
Ban ii: do not insert water heaters in the shower. The bathroom is damp, the hands are watered with the operation and are at risk of electrocution. Power outages are performed during dry and dry environments。
There is also a special type of water heater: the heater. This means that there is no water storage tanks in the heat, no pre-positioning, no 24-hour powering, and only when the tap is released. Such machines, which do not discuss the issue of heating and electricity consumption, stop working when the water tap is shut down, do not intentionally pull plugs on a daily basis, but leave the house for long periods of time, similarly recommending power cuts. The main topic of this paper is the most common water-storage water heaters available on the market。
Let's talk about a few more questions that you've often asked。
Question 1: what happens to water heaters when they go out for long periods of time, such as tourism, back home
It is recommended that the water heater plugs be removed for more than three days。
Step: power cuts do not require emptying of water from tanks. Water-storage water heaters keep water in their guts, instead protecting their guts from emptying water every time they go out. It is easier to oxidize rust when the inside is exposed to air after the drain. When they return to use, the tank will be filled with water before it becomes available, then the heating will be installed to avoid the dry burning of the heating tube。
Question 2: shouldn't the plug switch have to be pulled, just press the switch and shut off the power
The bathroom plug-in with an independent switch is a good option. Directly closing the plug to the condition that the switch is adequate and the line is sufficiently routing is equivalent to cutting the power without each effort to pull the plug. However, the switch is regularly checked for hotness and blackness. If the switch is hot and frequent, it cannot be relied upon and it is recommended that the plug be removed directly。
Question 3: does the water heater have an electrical shield so it can be assured that the permanent electricity is out of control
The shield is an auxiliary security component and cannot be used as a substitute for surface and electrical leak protection. The barrier can reduce the risk associated with electrical charge in the water pipeline, but the failure of plugs, such as ageing and leaks in the internal heating tube, cannot be fully protected and cannot be considered to be permanent。
Question 4: how can the aging of the cold be judged simply
Without using hot water, the water heater is filled with water, heated to 50°c and electrostatic. The normal qualifying temperature layer does not decrease by more than 10°c for 24 hours. If one night passes, water temperatures are reduced by more than a dozen degrees and the temperature level is probably aging and the temperature loss and consumption will increase significantly, giving priority to overhauling or replacing water heaters。
Many households struggle with electricity access programmes, which essentially strike a balance between electricity costs, accessibility and safety, without the only one-size-fits-all answer。
Let's get you a clear selection
1. Single-person, two-person, non-daily bathing, seeking to save electricity, with priority being given to one-to-two hours ' advance power supply and to the use of out-of-plugs。
2. All three or more households will have to use hot water at early and late hours, focus on easy access, give priority to long-term electrical access, set water temperature at 45-55°c, regularly test leakages and check plugs。
3. Old houses, ageing lines, unstable terrain, hot and dark plugs, and electricity outages and outages。
In either case, it is recommended that the water heater power be cut。
In addition to electricity access, daily maintenance has a direct impact on electricity consumption and security, which cannot be ignored。
First, the water is regularly cleaned. Where water quality is hard, heating pipes are easy to collide, water parcels are hard to heat, heat is difficult to pass into the water, heating is slower, electricity is increased and, when severe, local overheating is caused, and heating tubes are damaged. In general, an internal urchin wash is done in 2-3 years, with shorter cycles in areas with very hard water quality。
Second, change magnesium sticks on time. Under conventional use, magnesium rods are checked for approximately two years and are replaced in a timely manner if they are consumed in large part or in full. Magnesium rods are low-cost fittings to protect the guts of the inside, and hundreds of dollars in exchange for a magnesium stick avoid internal corrosive leakage and save the high cost of replacing the machine。
Third, check the plug line. The water heater line recommends a 4 square copper line with a separate circuit and does not share a plugin with large power appliances such as wind blowers and bathbows. The bathroom plugin must be fitted with waterproof boxes, and the humid environment prevents infiltration of water vapour. Once the plugs are found to be hot, the plastics are yellow and the plugs are loose, the repairs are stopped and no further use is made。
Fourthly, water heaters are installed in such a way as to avoid open balconyes and cold areas without heating during the winter, and the lower the temperature in the environment, the faster the heat is spread and the higher the electricity consumption。
And there's another easy-to-neglect detail: hot water pipes. Some water heaters are far from the shower tap and long metal pipes are naked outside. Even if the heater water tank is warmer, the hot water is heated in the pipes, each time it is discharged, it is cold for a long time, it is not visible that hot water is wasted and it indirectly increases the heater burden. Long-range hot water pipes can be fitted with warm cotton packages to reduce the spread of the pipe。
Some of the statements circulated online need to be rationally identified. It was not objective to say that the water heater would fail if the plug was not removed. Regular brands, normal years, well-asset water heaters, long-term electricity usage, most of which can operate safely. Risks do not always occur, but are permanently connected and the probability of failure increases. We do power outages, regular overhauls, so as to reduce the risk, not to say that there will be a problem。
There are also rumours that repeated electrical transmissions blow up the guts inside. Internal gallic pressure, break-ups, mostly caused by failure of safety valves, abnormal water pressure, consumption of corrosive inner urchins by magnesium rods, are not directly related to normal power outages。
We make all choices, and the core principles are to balance accessibility, electricity costs and safety. There is no need for radicalization, no need to force everyone to pull plugs every day, and no need to let water heaters go through electricity without any screening。
Many households maintain 24-hour power supply, which is not so bad as to be inoperable, but rather because they do not combine their own water use habits and bear a portion of the cost of heating electricity, while ignoring the risks of aging the circuits associated with long-term electricity access. The choice of a suitable mode of use, accompanied by regular and simple inspections, will allow for both electricity savings and security risks to be reduced。
Now, let's look at the situation at home: whether the water heater is water storage or heat? How often do you take a bath? The water heater's location is cold in the winter. Are there any hot spots
Welcome to the comment section, do you think your water heater has a permanent power supply or does it turn on before the shower? Have you ever experienced electrical abnormalities in water heaters or thermal heating of plugs and shared experiences of their use. The content is considered useful and allows attention to be paid to the continuous learning of household electricity safety and utility。
