In winter, the extremely low temperature makes people crave warmth, such as the quilt when getting up early, and the hot bath before going to bed. Faced with the low temperature in winter, many people prefer to take a hot bath before going to bed, and go to sleep with the heat. But sometimes due to the problem of the water heater, the water temperature is often unstable, and the “torture” of hot and cold makes winter more difficult. At this time, it is better to choose the most suitable water heater, so that you can take a comfortable hot bath. Today, the editor will tell you how to choose an excellent water heater.
First, let’s take a look at the different types of water heaters. At present, the most common water heaters on the market are divided into three types, namely gas water heaters, electric water heaters and solar water heaters. Although they can effectively heat daily water, according to their different characteristics, there are correspondingly different households. Next, the author will explain through three types of water heaters.
gas water heater
First, let’s take a look at the gas water heater. The heating method of the gas water heater is to heat by combustion, and after the heat is transferred to the cold water through the heat exchanger, the water temperature is heated. As the name suggests, the main fuel for this water heater is gas. Since the combustion process of the fuel can quickly release a large amount of heat, it has the excellent characteristics of ready-to-use and ready-to-heat. At the same time, the gas water heater needs a small area, and it does not occupy the indoor space when it is attached to the wall. This type of water heater is very convenient to use, and once occupied most of the domestic water heater market, but due to its common working principle, its shortcomings are also very obvious. In the accidents of water heaters, gas water heaters also account for most of them. If the gas water heater is installed in a room with no ventilation, it is prone to carbon monoxide poisoning. It is recommended that you choose to install it in a ventilated area during installation, not in the bathroom for convenience. In addition, if the gas water heater is not adjusted properly, it will also produce the phenomenon of hot and cold.
Here are a few things to keep in mind when buying a gas water heater:
1. The type of fuel used. At present, there are many types of gas water heaters on the market, and some of them are not necessarily the same as the type of gas in the home. At present, there are three main gas sources of natural gas, liquefied petroleum gas and artificial gas in China. According to the combustion heat characteristics of different gas sources, the size of the parts of the water heater is also different, and you need to inquire in detail when purchasing.
2. Safety precautions for gas water heaters. Considering safety factors, you need to know whether the product has protective measures when purchasing a gas water heater. Including flameout protection, overvoltage protection, drying protection and other safety protection measures, can improve the safety of the product.
3. The water output of the water heater. In fact, the water output of the water heater is different according to different specifications, and you can see the difference between 6L and 8L when purchasing. A water heater with a larger flow is more suitable for a family with a larger population, and a small flow is suitable for a family with a smaller population.
water heater
Unlike gas water heaters, electric water heaters do not need to consume gas energy, but use electricity to heat the water source. This type of water heater is subdivided into two categories, namely, storage-type electric water heaters and instantaneous electric water heaters. The water output of the storage-type electric water heater is large, and the water can be boiled in advance, so the water temperature is also more stable. However, because sometimes the storage-type electric water heater will keep the boiled water warm, and the liner will be in contact with the water for a long time, it is best to choose a product with a corrosion-resistant coating on the liner when purchasing. Because of the storage tank, the storage water heater occupies a large area. If you want to use hot water for bathing, you need to preheat in advance, and if the water is insufficient, you need to wait for the water to boil once. The instantaneous electric water heater does not have a water storage device. It directly heats the water through a relatively high current, and it can also be turned on and hot. The water temperature of this type of water heater is relatively stable, and because there is no water storage device, the footprint is relatively small. However, the instantaneous water heater also has some disadvantages. Because of the use of high-power electricity, the water heater has higher requirements on the line. If it is a user in an old-fashioned residential area, this type of water heater is not recommended.
Precautions for the purchase of thermal storage electric water heaters:
1. Water heater capacity. Because the thermal storage electric water heater needs to take into account the family population and the usual amount of hot water, it is necessary to have a certain grasp of the water storage capacity. Under normal circumstances, the rated volume of the water heater is 30~40L, which can support 3~4 people to bathe. If the family has a large population, you can buy a larger capacity electric water heater.
2. Due to frequent contact with water, the material and coating of the inner tank of the electric water heater are very important. The longest service life is the stainless steel liner, followed by the enamel liner, and finally the galvanized liner coated with cured resin.
3. Electric water heaters need to use electricity, so they should pay more attention to the safety of electricity use. At present, electric water heaters generally have grounding protection, anti-dry protection, anti-high temperature protection, and anti-overpressure protection. Some products also have leakage protection, automatic disconnection of sewage, additional power-off indication function, anti-electricity wall function, etc.
Precautions when purchasing an instant electric water heater:
1. The same as the thermal storage water heater, because the instantaneous electric water heater requires high current, and more attention needs to be paid to the safety of electricity use. When purchasing, try to choose products with more complete protective measures.
2. Instantaneous water heaters require large power consumption when heating, and old lines cannot withstand excessive load. It is recommended to know whether the home can withstand it before purchasing.
solar water heaters
Compared with gas water heaters and electric water heaters, solar water heaters are obviously more environmentally friendly. It directly collects the thermal radiation of the sun and heats the water through this heat. At present, the common water heaters on the market are mainly vacuum tube solar water heaters. The current solar water heaters are not as “reliant on the sky” as they used to be. Even in places with less sunlight, better quality solar water heaters can make full use of the heat of solar radiation to heat the water source. In fact, in order to prevent continuous rainy weather from failing to bring light, some solar water heaters also have the ability to electrically heat, allowing you to bathe comfortably even in rainy days. Compared with gas water heaters and electric water heaters, the installation conditions of solar water heaters are more severe. If you live in a building, you need to know whether it can be installed.
