Why is solar hot water production low?

Introduction Why is the solar hot water flow so low? 1. For conventional solar water heaters, the water outlet pressure depends on the vertical distance between the installation location and the water point. The higher the solar water heater is installed

Why is solar hot water production low?

1. For conventional solar water heaters, the water outlet pressure depends on the vertical distance between the installation location and the water point. The higher the solar water heater is installed and the lower the water point, the higher the water pressure will be (for example, if a solar water heater is installed on the top floor, the water will be used on the first floor). 2. The solar water heater may have been used for a long time and not cleaned in time. A large amount of scale has built up in the pipes and debris has accumulated on the filter at the mouth of the pipe, causing a blockage. the water flow is too low when the tap is open.

1. The water outlet pipe is blocked

The water flow of the solar water heater is low As we just said, this is the most intuitive judgment. This is because the water from the solar water heater is hard and scale is produced during the heating process, which adheres tothe inner wall of the outlet pipe and the valve.

If the water outlet pipe is partially blocked due to shower heads and other places, the diameter of the pipe will become smaller and the water outlet volume will become smaller. This situation has some persistence and water. the flow will decrease day by day. This phenomenon will occur in many solar water heaters with poor water quality for 1-2 years of use.

2. The air outlet of the solar water heater is blocked.

On the top or side of the water storage tank of the solar water heater, there is usually an air outlet to pressure. relief and exhaust to prevent solar energy from being blocked. During the process of heating the water in the water storage tank, the volume expansion pressure is too large and the water tank bursts. Although it is called air outlet, it is used for air intake whenthat we use water.

3. The outlet pipe is bent.

Some friends' solar outlet pipes are not strong enough. When the water temperature is not high, however, there is no problem with the water flow. , once the water temperature is too high, or when the outside temperature is high, the pipe will become soft if not fixed well, it will sag, bend or collapse. This situation is particularly evident the higher the water temperature. This equates to a reduction in pipe diameter, which will also result in low water flow.

Detailed information:

Solution

1. First check the height difference between the solar water heater and the water point

There is actually no verification on this. of course where the solar energy is installed. Understand well, what I seetell them here is that the height difference between the solar water heater and our water point must be at least two meters, so that we can feel that the water pressure is sufficient. Of course this has some relationship with the type of shower head we use, some pressure shower heads may be more comfortable.

2. Then check if the air outlet is blocked.

As we said above, a blocked air outlet not only affects the water flow, but also affects the amount of water. water we provide. In severe cases, this can also lead to deformation of the water tank. So if we find that the solar water production is low, my suggestion is to check the water outlet first to see if there is a blockage. If blocked, clean and purge immediately.

If yesFor the type of pipe outlet, it is recommended to replace it with another one made of harder material. NOTAlso remember not to cover the air outlet in any way, including using a breathable fabric to cover it. This can easily clog it and affect water flow.

3. Check again whether the pipes are bent or not.

Especially when we use hot water, we can check if the pipes are bent due to the gravity of the water or the pipe. If the hose is kinked, I recommend replacing it immediately with a regular hot water hose and securing it properly.

It is worth noting here that if you use PPR pipes, you must use PPR for hot water pipes. My suggestion is to use aluminum-plastic composite pipes, which have better strength and are less likely to kink.

4. Finally, check if the waterway is blocked.

After eliminating the above three reasons, let's check our waterway system. The first thinge thing to do is look at the taps and. shower heads. These places are most likely to be clogged. You can confirm this by removing them and checking the water volume. If cleaning is of no value, it is recommended to replace them directly.

The second is the water pipe. There is no good way to clean it. You can use citric acid, pour it into the pipe from the top, soak it for a while, then rinse it. . Generally there will be no problems. The main reason is tartar blockage. There is also a filter, if installed. It's best to check and clean this first.

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