Is the natural gas stove easy to use?
1, Vantage Gas Stove (a well-known trademark in China, a famous brand in China, one of the top ten cooker brands, an influential brand in the kitchen and bathroom industry, 200 1, founded by Vantage Gas Stove Co., Ltd.), such as Vantage JZ 12T.2-B03 18AX, and the price is 990 yuan.
2. Tai Fang gas stove (a well-known trademark in China, a famous brand product in China, top ten brands of cooking stoves, a leading brand in the industry, and one of the most valuable brands in China 500, Ningbo Tai Fang Kitchenware Co., Ltd.), such as Tai Fang FC2 1GE, with the price of 1780 yuan.
3. Boss gas stove (a famous brand in China, one of the top 500 Asian brands, one of the most influential brands in the kitchen appliance industry in China, and a leading enterprise in the kitchen appliance industry), such as Boss JZ(Y/T/R)-9B 13, the price is 1320 yuan.
4. Siemens gas stove (1847 was founded in Germany, a world top 500 enterprise and a world brand, Siemens (China) Co., Ltd.), such as Siemens ER74253MP, and the price is 1634 yuan.
5. Sakura gas stove (1978 was founded in Taiwan Province Province, a high-tech enterprise, a famous trademark in Jiangsu Province, a well-known trademark in China, and a world-famous brand), such as Sakura SCG-6886S, at a price of 1850 yuan.
6. Shuaikang gas stove (Asia's top 500, China's well-known trademark, China's famous brand, one of China's largest kitchen and bathroom appliance manufacturing bases, Shuaikang shares, more than 500 national patents), such as Shuaikang QA-0 19-B2, the price is 726 yuan.
7. German-Italian gas stoves (well-known trademarks in China, famous brands in China, outstanding private scientific and technological enterprises in China and Zhejiang Deyi Holding Group Co., Ltd.), such as German-Italian JZY(T.R)-26 19, cost 19 14 yuan.
8. Midea gas stove (founded in 1968, a well-known trademark in China, one of the most globally competitive brands, one of the top 500 Chinese enterprises, and Guangdong Midea Electric Appliance Group Co., Ltd.), such as Midea JZ 12T.2-QL300B, costs 599 yuan.
9. Huowang Gas Stove (a well-known trademark in China, a famous trademark in Guangdong Province, founded in 1992, is one of the few domestic first-line high-end kitchen appliances suppliers that export kitchen appliances with completely independent intellectual property rights and brands, and its environmental protection and energy-saving products are at the forefront of the industry). For example, the price of Vulcan 2QT04M/B2 1 198 yuan.
10, Wanhe gas stove (a well-known trademark in China, founded in 1993, the largest professional manufacturer in gas appliance), such as Wanhe N-B02X, 898 yuan.
Selection skills of natural gas gas stove
1. Choose a desktop cooker or an embedded cooker?
At present, gas stoves are mainly divided into desktop and embedded types. Generally, the appearance of desktop furnace is not as good as that of embedded furnace, but the thermal efficiency of desktop furnace is generally higher than that of embedded furnace because of air intake and other reasons. However, with the increasing demand for kitchen environment, embedded cookers can also be used as desktop cookers, and more beautiful embedded gas stoves have gradually become the mainstream of the market, and the market share of desktop cookers is getting lower and lower. However, when installing the embedded cooker, the bottom shell must not be completely isolated from the outside air, and it is necessary to open a hole of about 80CM on the cabinet to avoid the gas accumulation concentration in the cabinet being too high due to sealing and causing accidents.
2. Determine the gas source
Next, we need to determine the gas source of the stove. That is, choose a gas stove that burns natural gas (pipeline gas T), liquefied petroleum gas (bottled gas Y) or artificial gas (pipeline gas R). Different gas, pressure, heat and price are different, and the gas source of the same gas stove cannot be changed at will. You should decide which gas stove to burn according to your own needs or local conditions. Among them, the order of heat is: liquefied gas, natural gas and artificial gas.
3. Panel materials
At present, there are three main materials for gas stove panels: stainless steel, ceramics and tempered glass. Stainless steel and tempered glass are the most common. Among them, aesthetics: tempered glass ceramic stainless steel; Durability: stainless steel tempered glass = ceramics; Cleanliness: toughened glass ceramic stainless steel.
At present, the heat and cold resistance and impact resistance of tempered glass panel of gas stove are generally no problem, and the technology is very mature. Even if there are cracks occasionally, the chances are very, very small, and the cracked fragments will be connected together and it is not easy to hurt people. General brands will promise that tempered glass panels will crack within a certain period of time and be replaced for free. The impact resistance of ceramic panels is slightly worse than that of tempered glass, but the temperature resistance is slightly stronger.
Stainless steel panel is the earliest and most widely used, but if the material is not good, or the panel and the bottom shell are not buckled well, it is easy to warp after a long time, especially if it is thin. Therefore, when choosing a gas stove with stainless steel panel, it will be more durable to choose a thicker button between the panel and the bottom shell.
4. Air intake mode
Gas combustion needs oxygen in the air, and air intake is actually oxygen intake. The air intake modes of gas stoves are divided into upper air intake and lower air intake, and some manufacturers also call the lower air intake total air intake.
(1) against the wind: that is, the air needed for combustion mainly comes from the upper part of the gas stove. As shown in the figure, the middle of the fire cover is closed downwards.
(2) Downward air intake: that is, the air required for combustion mainly comes from the lower side of the cooker (the bottom shell of this cooker has air intake holes and dampers to adjust the air size). As shown in the figure, the middle of the fire cover opens downwards.
At present, the cookers seen on the market all have upper and lower air inlets. Among them, the downdraft gas stove needs to adjust the air door, which has a small hidden danger of tempering and deflagration for a long time, but the impact will not be too great. Therefore, at present, many manufacturers are referring to a pure upward-suction cooker from abroad and developing their own complete upward-suction cooker, because upward-suction cooker is regarded as the safest cooker in the industry, but relying solely on upward-suction cooker often leads to insufficient air supply, relatively small firepower, and unsatisfactory thermal efficiency and CO. Just like some brands have only 3.5KW firepower, it is this reason that affects normal use. However, I heard that some manufacturers have developed a completely up-sucking cooker, and its firepower, thermal efficiency and CO indicators are all good. You can get to know it.
5. Fire cover
The fire cover is one of the core components of the gas stove, and the material and hole design of the fire cover are very important.
At present, the material of gas stove cover in China is mostly copper alloy, but there are two kinds of copper alloys. One is brass for cabinets with a copper content of about 53%, which is used by most domestic enterprises and some cottage factories. The other is lead-cast non-standard brass with copper content of 57%. This kind of copper alloy is tens of dollars more expensive than the brass in the cupboard, so its quality is better. Domestic brands like some professional cookers use this lead to cast non-standard brass alloys. As for what brass it is, it is invisible to the naked eye. It is impossible for a non-professional to know this.
There are many holes in the fire cover. But there are mainly round holes, trapezoid, rectangle, strip and so on. The round hole is the first generation of fire cover, which has a long history. It's very common and easy to block. It is often necessary to remove impurities in the fire hole with toothpicks and needles to avoid burning the fire cover. Trapezoids are relatively rare. Generally speaking, strip-shaped fire holes have higher thermal efficiency and power than other fire holes, and are more suitable for China people's cooking habits such as frying, exploding and choking.
The left is a circular fire hole fire cover, and the right is a strip fire hole fire cover.
6. Combustion mode
Gas stoves can be divided into direct fire combustion, side fire combustion and rotary fire combustion according to the flame direction of fire.
Direct fire combustion is very common, that is, the air outlet is upward, and the flame is from bottom to top, perpendicular to the bottom of the pot.
The fire cover for side fire combustion is mainly a circular fire hole, and the air outlet hole is not above the fire cover, but around the fire cover and obliquely upward toward the bottom of the pot.
The fire cover of rotating fire is mainly a strip fire hole. Because the gas output is appropriate, it is fully mixed with air, and the blue part with the highest flame temperature basically faces the bottom of the pot. This combustion method has the highest thermal efficiency and concentrated firepower, and is more suitable for Chinese dishes such as cooking.
7. Ignition mode
The ignition methods of gas stoves are mainly divided into piezoelectric ceramic ignition and electric pulse ignition.
Piezoelectric ceramic ignition is mainly used in some old-fashioned table gas stoves, but now better gas stoves no longer use this ignition method. Piezoelectric ceramics is a special material. When it is subjected to pressure or deformation, its surface will be charged, and electric sparks will be generated when it is discharged from its surface. However, this ignition method can only spray an electric spark once by pressing the button, so the success rate of ignition is much lower than that of electric pulse ignition, which is more troublesome.
The electric pulse ignition method needs to install a battery at the bottom of the gas stove, and its ignition success rate is extremely high, generally 100%. Because it only needs you to twist the button once, and it can continuously spray an electric spark until it is ignited.
Compared with the two ignition methods, the electric pulse ignition method will be better.
8. flameout protection device
The flameout protection device is a device that automatically turns off the gas source to ensure your safety when the gas stove accidentally flameout (such as boiling water overflows during cooking), which is mainly divided into thermoelectric and ion induction devices. At present, the state requires gas stoves to have flameout protection, so don't buy those without flameout protection devices.
Thermoelectric type: it is the principle that the electromagnetic valve is opened and closed by sensing the temperature with thermocouple and generating thermoelectric potential. This flameout protection device is a set of thermocouple and solenoid valve, which only controls one gas channel, so the safety factor is high: that is, if one of them is damaged, it will not affect the normal use of the other burner, which is stable and reliable, and generally does not need an external power supply. However, it has a certain thermal inertia, so that the current output by the thermocouple can not disappear immediately with the flame extinguishing, and the response to accidental flameout is slow. It usually takes about 5- 10s to close the gas valve, but this leakage will not cause any safety problems.
Ion induction: the flame invented mainly by using the principle of unilateral conduction has electric ions (the flame is equivalent to a section of wire). The advantage of this method is that it is quick to die. But it can only be applied to a single gas path, and the gas paths after passing through the protection device cannot be separated, otherwise it will cause misoperation and air leakage; So the flameout protection device is damaged, and the whole cooker can't be used. Secondly, it needs an external power supply and consumes a lot of power. Generally, the battery needs to be replaced once every 2-3 months.
9. Panel fixing method (embedded)
At present, the panel of most gas stoves is fixed by two burners, and the panel is easy to shift. Because of the weight of its own panel, glass or ceramics can easily get stuck in the gas valve stem once it is displaced, and cannot be ignited. However, due to its flexibility, stainless steel panels often warp and deform, so when choosing a cooker, we must choose a good fixing method. Another trick to teach you is to weigh the corner of its gas stove with your finger (stainless steel panel only), and then press one of the burners hard with your other hand. If the panel is found to be warped, the fixing method is not good.
10. Thermal efficiency
The higher the thermal efficiency of gas stoves, the more energy-saving. According to national regulations, the thermal efficiency of desktop gas stoves must be above 55%, and the thermal efficiency of embedded gas stoves must be above 50%. Thermal efficiency is greatly influenced by air intake mode and fire cover design. Therefore, the thermal efficiency of gas stoves depends not only on the number of manufacturers, but also on its air intake mode and fire cover design. Generally speaking, many direct fires burn near the edge of the pot, and the heat is easy to be lost. However, switching to fire not only has more firepower, but also has higher thermal efficiency than direct fire.
1 1. Thermal stress
The heat load of gas stove is equivalent to the size of power and firepower, so the greater the heat load, the more fierce the firepower. According to the national regulations, the heat load of at least one gas stove is above 3.5KW, and the heat load should be considered comprehensively with the thermal efficiency and exhaust gas emission to be discussed below, because they often affect each other. Don't simply think that the higher the heat load of the business target, the better the product. Due to the high heat load, the thermal efficiency may be low and the CO emission may be high.
12. Carbon monoxide emission
The state stipulates that the emission of CO in gas stove exhaust gas must be 0.05%. Because the thermal load, thermal efficiency, CO emission and other performance indicators of these three gas stoves are constantly changing, few can really do well. The Green Product Award is awarded by the authoritative department of the state to an enterprise that has made outstanding contributions to environmental protection, in which CO emission is an important indicator to measure this award. In addition, the height of the general pot rack will directly affect the air intake and whether the gas can be completely burned. If the pot rack is lower, the CO emission will be higher. Just now, we repeatedly mentioned that CO, heat load and thermal efficiency are in balance with each other. Generally, a good cooker can also achieve strong firepower and high efficiency under the condition of controlling CO emission very low.
13. Air tightness
The air tightness of the gas stove is related to the personal and property safety of you and your family, so it is not a trivial matter. According to the national regulations, under the standard gas pressure of 4.2kPa, the leakage from the gas inlet to the gas valve must be 0.07L/ hour. You can do a simple check at home by yourself. The method is to turn on the gas source, turn off the switch knob of the gas stove, and then scrub the pipeline, valve body and interface with a small amount of soap or detergent water. If there are no bubbles, there is little or no air leakage.
14. Choose a brand
The average consumer thinks that advertising is a good brand, or that high price is a good product. There is some truth in this idea. But this is often not necessarily the case. Sometimes advertisements are really deceptive. Of course, under normal circumstances, choosing a brand is definitely more secure than a miscellaneous brand. But brands are also divided into professional brands and non-professional brands. For example, Midea has hundreds of products. Although it is a big brand, it is impossible to be perfect and everything comes first. Another example is Haier's refrigerator and washing machine, but its computer is not as good as Lenovo's and its TV is not as good as Hisense's. That's the reason.
15. Performance-price ratio
Buying a gas stove is not necessarily the most expensive, but it can't be cheap. It must be the best cost performance, that is, when we buy it, we should compare the function, technical parameters, safety performance, energy saving and so on, and then look at the price on this basis. If we blindly think that high price is good, you will have to pay about half the advertising fee for the gas stove you bought, but if you only want to be cheap, it will take less than half a month, and you will find this. So I suggest that it is best to buy from a more formal shopping mall, market or brand store. In addition, compare their differences in product connotation, and don't blindly believe in advertisements.
16. It is matched with decoration, range hood and disinfection cabinet.
Generally, when you buy a gas stove, you buy it with a range hood and a disinfection cabinet. So you should pay attention to the unity of these three-piece suits and your home decoration style. It will be more suitable to choose according to the color and material of kitchen decoration as a whole.
Natural gas gas stoves are mainly aimed at families with natural gas as the main gas. The above small series introduces some brands of natural gas stoves and the purchase methods of natural gas stoves. I hope Bian Xiao's introduction can help you solve the problem of whether the natural gas stove is good or not.