You always have to wait for hot water Can I install backwater?

Mom says it's easy to wake up after washing your face, because you have to stand in front of the washbasin and wait for hot water. When hot water comes, people wake up. ?

Install the water heater as close as possible to the place where hot water is needed, so that as soon as you twist the tap, hot water will come out. ?

However, water heaters may not always be installed near kitchens and bathrooms. ?

The kitchen and bathroom are far away, so we can only take care of one thing and lose another, not to mention the large apartment with two or three bathrooms far apart. ?

After a night in winter, no matter how good the heat preservation is, the hot water in the pipeline becomes cold. Even if the bathroom is equipped with a water heater, you still have to wait for the sink to use hot water.

I just want to wash my hot face ...?

Installing a small kitchen treasure is one way, but it is only suitable for kitchens or sinks. For families whose bathrooms are far away from water heaters, it still can't solve the problem. ?

At this time, a backwater can be installed, which is also commonly known as: hot water governor and hot water circulating pump. ?

If you have installed a backwater device, please leave your brand, price and experience in the message area at the end of the article. ?

1, hot water that will get cold as you go further and further?

Every household's hot water is drawn from hot water pipes. The farther hot water goes in the pipeline, the more time it takes. ?

When hot water is not used, it will slowly cool in the water pipe. ?

When the faucet is turned on again, although the water heater immediately produces hot water, the hot water needs to squeeze the cold water out of the pipe first, so no matter how well the water pipe is kept warm, it is still necessary to release the cold water before using the hot water overnight. ?

In addition, the waiting time for hot water is also related to the flow rate of the faucet. ?

Some faucets and showers that save water or have insufficient water pressure wait for hot water for a long time. ?

▲ In the process of cooling hot water and reusing hot water, it is obviously necessary to wait until the cold water in the water pipe is emptied?

2, the essence is the pump backwater?

When we don't use water at ordinary times, the water in the water pipe is still, and the water in the hot water pipe will gradually get cold. ?

Without water, there will be no hot water produced by gas water heaters, and the hot water from storage water heaters will not flow out. ?

Backwater is to force the water to move when we are not using it. ?

Cold water is forcibly pumped back to the water heater, "tricking" the gas water heater into starting, or directly mixing into the water tank of the electric water heater. ?

In this process, it is necessary to ensure that there is always hot water in the hot water pipe. ?

So the core component of backwater is the water pump.

▲ The right side of the water heater is backwater. Are most stagnant waters like this?

In order to produce this effect, it is necessary to turn the hot water at home into a circulating system, not only to go back, but also to return, so that the water at home can flow when there is no water, forming a circulation. ?

After the hot water is cooled in the circulation process, it returns to the water heater for reheating. ?

The pipeline is full of fresh hot water, so as soon as the tap is turned on, there will naturally be hot water. ?

In order to achieve the effect of hot water circulation, after receiving the water point farthest from the water heater, the hot water pipe must return to the water inlet of the water heater and be connected with backwater. ?

In this way, the backwater can ensure that the water in the whole hot water pipeline loop can be circulated and heated back and forth by itself even when no one is using it.

▲ Even if no one turns on the tap, backwater can control the water circulation and fill the whole hot water pipe with hot water?

Students who have installed a boiler at home to burn their own floor heating will surely find that this is the same as the principle of floor heating! ?

Yes, it means the same thing. ?

3. Can the backwater be installed after the renovation?

I found that I had to wait for hot water after the renovation, but I couldn't lay the return pipe, but I could turn on the tap and use hot water. ?

Hot water doesn't need to be completely circulated. Just before we turn on the tap, the cold water in the original water pipe has been squeezed out by hot water. ?

The solution is to connect the hot and cold water pipes with a one-way valve at the farthest water point, so that hot water can be directly poured into the cold water pipe. ?

There is still backwater at the cold water inlet of the water heater, but a socket is needed. ?

In this way, as soon as the backwater is started, the cold water in the hot water pipe will be directly squeezed into the cold water pipe, and we can use hot water as soon as we open the hot water pipe. ?

However, one side effect of this is that when the farthest faucet turns on cold water, the water becomes warm water because it is mixed with the hot water poured out from the hot water pipe.

▲ Connect the farthest hot and cold water pipes with one-way valves, but will it affect the nearest cold water?

4. Waste water or electricity (gas)? It's not a problem, okay?

The backwater device is only installed to improve comfort. As soon as the faucet is turned on, hot water will flow out, which is not designed for cost performance and money saving. ?

Of course, it is too wasteful to leave the backwater open for 24 hours, so the manufacturer also added control function to the simple pump. ?

Work in a limited time?

Considering that everyone only needs to wait when turning on the tap for the first time when using hot water, most of the backwater work time is very short. 1~2 minutes later, the whole hot water pipe is filled with hot water, so most of the backwater will be closed after a single working time of less than 3 minutes. ?

The essence of backwater is water pump, and the core of water pump is motor, so it consumes little electricity. ?

▏ Water control ▕?

In addition to physical buttons, the most commonly used control method: monitoring water flow. ?

The water control method is: turn on and off the faucet within 2~6 seconds, and the backwater will detect the water flow and start working immediately. In half a minute, turn on the tap and there will be hot water. ?

Only water control backwater is very cheap, and you can buy it for hundreds of dollars. ?

Of course, you still have to wait for the water control, but you don't have to wait for the faucet to save water.

Temperature control/constant temperature?

Set a temperature, such as 40℃. When the backwater detects that the water temperature at the water inlet of the water heater reaches 40℃, it means that the water temperature of the whole hot water pipeline reaches at least 40℃ and stops working. ?

When the water temperature at the entrance is lower than a certain temperature, the backwater will start to work again. ?

This function is suitable for water-intensive time, such as cooking immediately after coming home from work, washing dishes after dinner and then taking a shower. There is no need to turn it on 24 hours, otherwise it will be wasted. ?

Moreover, if there is no return pipe with hot water, this function cannot be used.

▏ Timing ▕?

This is easy to understand. If you get up at 8 am, turn on the backwater at 7: 58. ?

When people go to the bathroom and turn on the tap, the water pipe is full of hot water, and they immediately enjoy the hotel-style hot water experience. Timing is also a function that entry-level backwaters usually have. ?

But return pipe can't use this function without hot water, otherwise it will keep pumping water, and hot water will soon fill the cold water pipe. Stay in bed for five minutes a day and there will be no cold water at home.

5. Not all families need backwater devices?

The water heater is far from the bathroom, especially the shower. Families with hot water pipes longer than 5 meters will be more suitable for using backwater devices. Otherwise, they have to wait for hot water before taking a bath, brushing their teeth and washing dishes. Water will run away the waste, then the basin will take up space, and watering the flowers and mopping the floor to flush the toilet will never be used up. ?

Because the price of backwater itself needs more than 1000 yuan, plus the installation cost in return pipe, it has no price advantage compared with several hundred yuan of kitchen treasures. Only the kitchen or washbasin needs hot water, so it is more appropriate to install a small kitchen treasure.

The specifications of the backwater device are divided by power, generally 160W, 200W and 280W. Among them, the water flow of 160W can easily reach 25L/min, overlooking most domestic gas water heaters, so there is no need to worry about the water supply of water heaters. ?

The room is big, there are many bathrooms, and the hot water effect is obvious. You can use a 280W machine. ?

Pick the backwater, mainly to see the pump, the imported pump will be more expensive but the effect is better; It is more reliable for manufacturers to specialize in pumps.

▲ Is this a relatively unpretentious early model?

In addition, backwater itself has a certain pressurization function (it is said that it is essentially a pump), and it is also suitable for old houses with unreasonable room type and insufficient water pressure, but its pressurization function is also a gift and cannot be relied on too much. ?

The following are three specifications of the head of a domestic brand backwater and ordinary booster pump (comparison of boosting effect):?

As for the impact on the water heater, backwater only makes the water flow, making the water heater "think" that we are using water, so as to start working. ?

The maximum working water pressure that the gas water heater can bear can reach 0.6~ 1Mpa, while the water pressure brought by the 280W backwater device is 0. 12 MPa (rated lift 12 m), which is definitely within the normal working range. As for the storage water heater, that is to say, letting its water tank heat water while adding cold water may make it consume some electricity from heat preservation mode to heating mode, that's all. ?

If your home also uses a backwater device, please leave a message below to tell us the brand, price and effect. ?

The above content is shared by good users, I hope I can help you ~