1. The materials are different. Non-pressure water tank uses thin material, while pressurized water tank uses thick material
2. The water heater relies on the drop to discharge the water, called falling water type. The water is drained; The pressurized solar water heater discharges water by pressure, called top water discharge. The so-called upper water outlet means that the water inlet of the pressurized hot water tank is connected to the tap water and remains open. The water tank always maintains the same high pressure as tap water. solar hot water storage tank outlet. When using water, open the hot water faucet, under the pressure of hot water, this water outlet method is called top water outlet. 3. The installation location is different. Non-pressure water tanks can only be on the roof, otherwise a booster pump is required, reserve themPressurized water tanks can be installed in basements, stairwells, bathrooms and attics.
What are the advantages and disadvantages of pressurized solar water heaters
The pressurized type is a closed water tank with a thick inner tank that can be placed anywhere in the house. , such as bathroom or living room, etc., relies on tap water pressure to discharge water. The advantage is that it avoids the hot and cold water temperature when taking a bath. The whole system is similar to an electric water heater. ; the non-pressure type is an open water tank with an exhaust hole on the top of the water tank. Water drainage is based on gravity drainage. The water tank should be placed on the roof.
First. In short, when choosing a solar water heater, you must choose a pressurized water heater. Because the water outlet under pThe pressure is stable, it will not become hot or cold. Secondly, it is recommended to choose a hot plate water heater based on the pressure type. Since the heat collector plate water heater is split type, the pressure water tank can be placed inside. There is no need to install it on the roof as a whole like a vacuum tube water heater, which not only solves the problem of roof pressure, but also ensures the problem of tank insulation of water. Third, the pressurized water tank of the selected solar water heater must have an enamel inner tank. The enamel inner tank has good anti-corrosion effect, strong pressure and long service life. As long as it meets the above three points, it is basically a high thermal efficiency solar water heater. Of course, based on this, try using heat collector platestheir and imported antifreeze media. Although its price is a little higher, it has high thermal efficiency and a long lifespan. Many foreign brands of domestic solar water heaters are counterfeit. They are assembled from parts purchased domestically and sold under the import name. Most genuine imported products come with English installation instructions, and each interface of the machine has English labels, which can be distinguished with a little attention.