1. Solar water heaters are generally designed for 40 liters of water per person, or 160 liters of water. If you are also using domestic water, you will need to add 40 to 50 liters of water. you use a bathtub, you will need to purchase at least one. Two hundred and sixty liters Because a bathtub requires more than a hundred liters of water. The number of liters mentioned here refers to the number of liters of the solar water heater. tank, not counting the number of liters in the vacuum tube. Currently, there are many people selling solar water heaters in the market. When we talk about the overall volume, and not the volume of the water tank, the capacity of the solar water heater will become larger and it. will seem cheaper. However, the water in the vacuum tube cannot be released during use.
2. Solar Water Heater There are pressure solar water heaters and spaced solar water heaters. on the market is the water heater sspaced olar. The main reason is that its price is much cheaper than solar pressure water heater. However, the disadvantage of the spaced solar water heater is that the water pressure is low. Hot water pressure depends on the natural head. The greater the drop, the greater the water pressure, and vice versa. It is generally best for users on the top floor to consider installing a hot water booster pump in this manner. , the hot water pressure will be more normal. It is recommended to buy a gap type solar water heater, because it is much cheaper.
Although most brands of solar water heaters are qualified, you are not a expert and can't distinguish between good and bad, so you still have to spend more money to buy them. A well-known brand, of course, if you know of an unknown brand that someone usesfor several years and which is good. , then buy it and you can save a lot of money.
4. With solar water heaters, after-sales work is carried out by dealers or agents. Therefore, it is also very important to choose one. stronger merchant. If you choose a guerrilla, you may not be able to find the person if something goes wrong.
5. No matter which brand of solar water heater you choose, it usually has many product series. When choosing, you should first choose the cheapest series, because the thermal efficiency and service life of cheap series and expensive series of solar water heaters are similar.