What is a solar water heater? Should I buy it?

Solar water heaters are very safe and save a lot of electricity for the family and protect the environment, so many people choose to use them. To learn more about this home appliance, please refer to the article below!

What is a solar water heater?

What is a solar water heater?

A solar water heater is a device that uses direct energy from sunlight to heat water to serve the needs of the family.

Solar water heaters work by a unit that attracts direct sunlight and then heats the water in the tank.

Main structure

– Heat-collecting unit: The machine uses a heat-absorbing tube that is a vacuum tube, an oil tube or uses a heat-absorbing flat plate protected by a layer of high-grade tempered glass to collect heat into the machine.

– Thermostat (also known as insulation tank): A part that stores hot and cold water.

Working principle

Solar water heater works on the principle of natural heat convection , when there is sunlight, the vacuum tubes available with cold water will absorb heat and heat the water quickly without having to plug in the electricity . indirect water heater or direct water heater.

According to the principle of thermal convection, where there is hotter water will move up and cold water moves down the vacuum tube to be heated. This heating process will end when the water temperature in both the container and the vacuum tube is equal.

How many types of solar water heaters are there?

There are 3 main types of machines on the market: Vacuum solar water heater, oil tube and flat plate type. Each type will have its own structure, operating principle and distinct advantages and disadvantages, in which:

Vacuum tube solar water heater

Structure and working principle: Includes many vacuum glass tubes that are attached directly to the vents on the body of the hot tub.

Advantages: The machine is quite cheap, retains heat for a long time, is safe to use and is environmentally friendly. The working principle of the machine is also quite simple.

Cons: Poor use efficiency when there is no sun, easy to stick to dirt, moss, leading to low performance of the machine. Therefore, to ensure the performance of the machine, you need to have regular cleaning mode.

Oil tube solar water heater

Structure and working principle: Includes many oil pipes that are directly attached to the vents on the body of the hot tub.

Pros: You can use the device even when it’s not sunny. The use of oil pipes helps the ability to absorb heat effectively, and the heating time is faster. The product is absolutely safe and environmentally friendly. In addition, the machine does not get dirty, so it can maintain a longer life and reduce maintenance costs.

Cons: The price of the machine is quite high, currently an oil-tube water heater usually costs about 2 – 3 million VND higher than a vacuum tube water heater.

Flat plate solar water heater

Structure of operating principle: Consists of flat heat-absorbing panels above protected by a layer of high-grade tempered glass and a control system for water pumping.

Pros: You can comfortably install it anywhere on the roof. Safe and environmentally friendly products.

Cons: The machine will not be able to operate when the power is out. In addition, the amount of heat released to the environment is quite large, leading to poor performance and power consumption. The price of a flat-panel solar water heater is currently very high, with some machines costing up to 60 million or 100 million dong/machine (updated on July 6, 2022, subject to change according to time).

Benefits of solar water heater

Solar water heater is an optimal solution that brings great benefits that your family should consider using.

No electricity needed

The machine does not need to use electricity, but takes energy from direct sunlight to generate heat to heat the water, so the machine will help save electricity , which contributes to reducing monthly electricity costs for the whole family. your family.

The water in the machine is heated by solar energy continuously during the day and the thermos flask has the ability to keep hot for up to 72 hours so you can use it for bathing, washing dishes, cooking everyday… very convenient for birth. active in the family.

Safe when using

The solar water heaters are decorated with a flat plate protected by a layer of high-grade tempered glass and have high strength , good heating effect.

These machines have heat-absorbing tubes designed to be tight and tight to help limit the appearance of dirt and debris in the tube, which helps to ensure hygiene and ensure consumer health.

In addition, the machine also uses extremely safe solar energy, not afraid of electric shock, not afraid of fire and explosion, very suitable for life in modern urban areas.

Cost savings

To use the machine, you need to spend a large amount of money to buy a water heater, but after a period of use about 2 years, you will find that the machine helps you save a lot of money for your family such as maximum energy savings for your home. family, the machine is durable for long-term use, …

Environmental friendliness

Choosing to use solar hot water is a safe solution for the environment, both taking advantage of abundant solar energy, and minimizing the use of electrical energy, without creating harmful CO2 emissions. environmental pollution and greenhouse effect.

Should I buy a solar water heater?

With the above advantages, solar water heater is an optimal choice for your family, both convenient for frequent use of hot water, while ensuring safety for you and your family members. family.

Besides, this product is increasingly popular because of its environmental friendliness , taking advantage of energy from the sun, contributing to better environmental protection.

Therefore, this is an optimal choice if your family has a need to use hot water on a regular basis , wants to contribute to environmental protection and has an abundant budget for initial investment because of the cost of purchasing. Purchasing and installing solar water heaters is quite high compared to conventional water heaters.

However, in the long run, this is a product that saves you more money because it does not use electrical energy !

However, if there is no need to use hot water too often and the investment is not much , consider choosing ordinary water heaters , pay attention to choose genuine machines, reputable stores and With a full warranty, to ensure the safety of yourself and your family when using it!

Purchase policy, warranty for solar water heaters at lassho.edu.vn

Currently, solar water heater products are being distributed genuine at lassho.edu.vn systems, you can buy directly or buy online through:

• Website: dienmayxanh.com.
• Purchase call center: 1800.1061 (Toll free) from 7:30 to 22:00 (both Sundays & public holidays).

(Warranty policy was updated on 06/07/2022, subject to change from time to time. See more updated information here.)

The above article introduces about the solar water heater as well as the features of this product. Hope to help you choose the right water heater for your family!